From nobody Tue Feb 10 10:53:27 2026 Received: from mail-lj1-f171.google.com (mail-lj1-f171.google.com [209.85.208.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 125F713E403 for ; Mon, 25 Mar 2024 13:16:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372623; cv=none; b=urNYvjQEbzSn+mJzemLRN7yllQ3gk60NeLOzB9dKV5RhlKJuYtMzywSK26vPyAYX65d47NDSRBLoIDeEQ/etlmQYvVNGzkmb8Sp0fp3qoxURQsqWDftXKRY/fYZdbizWAclEj/X1fF/3Trixvcb92pBD0nEm8J9C7pZYNGjob3k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372623; c=relaxed/simple; bh=umsASWScraRruZvXdnmzX+2rRPtkGm6CyEV2OmvBy7E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=p33pW8hbnY3YVhaJ2BRr9sSwzRJT5GmRvsUtAyUcN7yGRGyNtNP4Lf1Bho0QC9UOv2giaGkRaKm51QgnrCS4MB/GEJ4VIG02hS+BFYV25qR20xZkbKwUGqjqtotSlKz48Wayt0YBnmHIs5q3KTbz85RTWFsVkD9RFpZTQpBjsjI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=OY/nE9Jo; arc=none smtp.client-ip=209.85.208.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="OY/nE9Jo" Received: by mail-lj1-f171.google.com with SMTP id 38308e7fff4ca-2d29aad15a5so55110851fa.3 for ; Mon, 25 Mar 2024 06:16:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372618; x=1711977418; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=42yZYptcgZvWjTHjWqqNlYhVo8nNiy2t/Uk2MgznhqE=; b=OY/nE9JoWvTSiSHrx6GYHQ1SAsVh8ZjTSOdeRYBKQmI02iiz4d5RbMBBTcZtsTtQUG HNC4+cVe6XT40KINgpbFkIwUQK7bdhWFj3W7J6dQFDlZrR9WlN0ermaBxp7zdr3cR4l2 +jtbh4hurca3kmY+NiIwFrLl2GsjZkoNdrst3KscCUgNYQArOL5gH5RLf8F24SRP/Thj 36sSQsBRdNaSP019Y2qxuFCC3gf5CPpg5b47X5LLldk7d6R4pMrwbLXsCq2LCyOG7ZhI C1oGl2uGCbCKpBAgJ1BVbwzQSOmZgGQFVF61qoBHH8KzyAdTyDSIKIznNpW+Ydsn5lm3 cBkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372618; x=1711977418; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=42yZYptcgZvWjTHjWqqNlYhVo8nNiy2t/Uk2MgznhqE=; b=MdmX3gdHqabtserI/ik9A5d6c2MEavAI4/NjcBEHDWesokBiAscBY/sNRoHmqd3gIy 0ClKl/KdGuOsqD++PqhK7iQ9VWhANvMt/Ortjgt8FJqXUbA1v3UcrUkY7Tcgvtjo1/OI up9g4f2DAKEmKvkVYUGPtoH6szEvREA/J86xPpZ5gmyLnx6c9mQamp9iNESu6ehle+76 Fq6tvpL16OcrJ/TCRr03/OvymI6fOikbaQE1Mgje8PU4zjx11fNLTYXByxeOSoxDyRGf StfxeLGz1aeTy5bKzbJT6Yw8kbsrLD7tnTIaq414X95MzIuOBN9ZuTZMOeyr3IYsQ3bo 248w== X-Forwarded-Encrypted: i=1; AJvYcCWrx/bME5ZTsjL9kAADiRN4dGA6x94mZlYY73DgihInc5l79Cqsyth2Y/aufHMxqcVN2SNNkygdo60An3Mo9YMuXMj0n+01hBAnt7/I X-Gm-Message-State: AOJu0Yw4NtpL2WOdXBvyDGRn+Sub3DfdwJ7R+Q6ENFd0QH1WMFfkeelC Razl7BI4SX6w2cwWybuvNNsyByhyhWgwH3FS4U+pZMrfHL+DSRGnob+K3+k2Uq4= X-Google-Smtp-Source: AGHT+IFRrpEIcF9g0oJWmhIi/sNJq/ERO6ZaZaYx2MQaEKjs8/2dotoG1QNrwY1XmiNhKxbpF4ccvw== X-Received: by 2002:a2e:98c2:0:b0:2d6:9481:b38 with SMTP id s2-20020a2e98c2000000b002d694810b38mr4810233ljj.20.1711372617692; Mon, 25 Mar 2024 06:16:57 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.16.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:16:56 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 01/16] regulator: dt-bindings: describe the PMU module of the QCA6390 package Date: Mon, 25 Mar 2024 14:16:09 +0100 Message-Id: <20240325131624.26023-2-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski The QCA6390 package contains discreet modules for WLAN and Bluetooth. They are powered by the Power Management Unit (PMU) that takes inputs from the host and provides LDO outputs. This document describes this module. Signed-off-by: Bartosz Golaszewski Acked-by: Mark Brown Reviewed-by: Krzysztof Kozlowski --- .../bindings/regulator/qcom,qca6390-pmu.yaml | 151 ++++++++++++++++++ 1 file changed, 151 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/qcom,qca639= 0-pmu.yaml diff --git a/Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.y= aml b/Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.yaml new file mode 100644 index 000000000000..9d39ff9a75fd --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.yaml @@ -0,0 +1,151 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/qcom,qca6390-pmu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Technologies, Inc. QCA6390 PMU Regulators + +maintainers: + - Bartosz Golaszewski + +description: + The QCA6390 package contains discreet modules for WLAN and Bluetooth. Th= ey + are powered by the Power Management Unit (PMU) that takes inputs from the + host and provides LDO outputs. This document describes this module. + +properties: + compatible: + const: qcom,qca6390-pmu + + vddaon-supply: + description: VDD_AON supply regulator handle + + vddpmu-supply: + description: VDD_PMU supply regulator handle + + vddrfa0p95-supply: + description: VDD_RFA_0P95 supply regulator handle + + vddrfa1p3-supply: + description: VDD_RFA_1P3 supply regulator handle + + vddrfa1p9-supply: + description: VDD_RFA_1P9 supply regulator handle + + vddpcie1p3-supply: + description: VDD_PCIE_1P3 supply regulator handle + + vddpcie1p9-supply: + description: VDD_PCIE_1P9 supply regulator handle + + vddio-supply: + description: VDD_IO supply regulator handle + + wlan-enable-gpios: + maxItems: 1 + description: GPIO line enabling the ATH11K WLAN module supplied by the= PMU + + bt-enable-gpios: + maxItems: 1 + description: GPIO line enabling the ATH11K Bluetooth module supplied b= y the PMU + + regulators: + type: object + description: + LDO outputs of the PMU + + patternProperties: + "^ldo[0-9]$": + $ref: regulator.yaml# + type: object + unevaluatedProperties: false + + additionalProperties: false + +required: + - compatible + - regulators + +allOf: + - if: + properties: + compatible: + contains: + const: qcom,qca6390-pmu + then: + required: + - vddaon-supply + - vddpmu-supply + - vddrfa0p95-supply + - vddrfa1p3-supply + - vddrfa1p9-supply + - vddpcie1p3-supply + - vddpcie1p9-supply + - vddio-supply + +additionalProperties: false + +examples: + - | + #include + pmu { + compatible =3D "qcom,qca6390-pmu"; + + pinctrl-names =3D "default"; + pinctrl-0 =3D <&bt_en_state>, <&wlan_en_state>; + + vddaon-supply =3D <&vreg_s6a_0p95>; + vddpmu-supply =3D <&vreg_s2f_0p95>; + vddrfa0p95-supply =3D <&vreg_s2f_0p95>; + vddrfa1p3-supply =3D <&vreg_s8c_1p3>; + vddrfa1p9-supply =3D <&vreg_s5a_1p9>; + vddpcie1p3-supply =3D <&vreg_s8c_1p3>; + vddpcie1p9-supply =3D <&vreg_s5a_1p9>; + vddio-supply =3D <&vreg_s4a_1p8>; + + wlan-enable-gpios =3D <&tlmm 20 GPIO_ACTIVE_HIGH>; + bt-enable-gpios =3D <&tlmm 21 GPIO_ACTIVE_HIGH>; + + regulators { + vreg_pmu_rfa_cmn: ldo0 { + regulator-name =3D "vreg_pmu_rfa_cmn"; + }; + + vreg_pmu_aon_0p59: ldo1 { + regulator-name =3D "vreg_pmu_aon_0p59"; + }; + + vreg_pmu_wlcx_0p8: ldo2 { + regulator-name =3D "vreg_pmu_wlcx_0p8"; + }; + + vreg_pmu_wlmx_0p85: ldo3 { + regulator-name =3D "vreg_pmu_wlmx_0p85"; + }; + + vreg_pmu_btcmx_0p85: ldo4 { + regulator-name =3D "vreg_pmu_btcmx_0p85"; + }; + + vreg_pmu_rfa_0p8: ldo5 { + regulator-name =3D "vreg_pmu_rfa_0p8"; + }; + + vreg_pmu_rfa_1p2: ldo6 { + regulator-name =3D "vreg_pmu_rfa_1p2"; + }; + + vreg_pmu_rfa_1p7: ldo7 { + regulator-name =3D "vreg_pmu_rfa_1p7"; + }; + + vreg_pmu_pcie_0p9: ldo8 { + regulator-name =3D "vreg_pmu_pcie_0p9"; + }; + + vreg_pmu_pcie_1p8: ldo9 { + regulator-name =3D "vreg_pmu_pcie_1p8"; + }; + }; + }; --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-lf1-f48.google.com (mail-lf1-f48.google.com [209.85.167.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4786613E6D0 for ; Mon, 25 Mar 2024 13:17:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372624; cv=none; b=UuyastheCplTd8kr5zzqP7eGo/HbS6QUNa5o6mrCrOhV78Tx4cShK5s6B+o3fNnIZsQSRVqCw80fkdYJoYJZ8eaaNbebc0FjdR1i6xwcxbm98OsoOSK31QtDHOM3zqGyRXFhcA8l4vyJ3CGG+LR+PrH4S9gpcIC6YCPVKXsSn9c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372624; c=relaxed/simple; bh=6EJanTOb9lmBTF84w02dw6YmtQBZ//XxYHWVbdxtB38=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=r2dMVfxQUTci5MXqxH6Svc/mvddeugpWMb5Ts3VWYCUTNJBvoS2VxvYj/1Nd3ROK/N5PZy/HOGWzf5ZtLUX8IATvRCZUf7b3dhQklzAoPBj2H53UynfWdSEyMwccUQr68qHGJ/P1QxLTjeeOiT1hBESA+IeFv4bGyWtfKHVEfxw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=se0Wjkhd; arc=none smtp.client-ip=209.85.167.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="se0Wjkhd" Received: by mail-lf1-f48.google.com with SMTP id 2adb3069b0e04-51588f70d2dso4999456e87.3 for ; Mon, 25 Mar 2024 06:17:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372619; x=1711977419; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=9V84zGWHhNqI3aEKBbqoMuQ965CIVij1HgYyzK0b1yI=; b=se0WjkhdEhv1Yp+rM5vu6A4BsWXSvoPH2l3gX+WCIyVRTKUMbr+t6vs9s2tdEp3yQZ wFPKxFGX7TXCbQmHN33HvwFMJje4FQOqC3UqIGtxSK6I6B1oEnxQtRHTFSwymqQm0gec A9RpvyjBTDSKhryCz+OxLJnX2NWeOcM3Lna8sGxkTTFcdUKjIfuNnjpof2rkH3ZQrG9S Ym/cA6l/LTKyIm2/LtqvNN5JXSNPZ/vax/wiYkikEaz2nGv0kfTk3nn/MXH9k9ThfIwo biFEtFMUtcRu/HyVejUh1etY5zVsoDhmpk/s4Apohl8l4j4u0cDSRPid+mkAEQ1K1v9U m0Zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372619; x=1711977419; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=9V84zGWHhNqI3aEKBbqoMuQ965CIVij1HgYyzK0b1yI=; b=aeynPgI9Zlm7Xy9wOeeuKrj1bH/C4Ny+8E7ZWCFfHTdMoxapj4u18ZPhvXjOd86/Sv 7JWsJAlK0+1fp2MyEA0hNAxalz7RZsehiLzqfjvFUMzmfz5MZgUKMHWqN8oZdF6bggth GbmiGao5AWTpJmJ2ItMLCMcDDwWxIoJgMaTAuiiuZkIzTG/aN7j38TWI01uoe6M5ZOGN DJORPZhSKslEqzd1i/xPG0hqrmCJDFnNvkXJrfo32QmIGCxiJo9UIPZHeWwbq1sVV7g8 PqFC8B3vjtRdPrmRYLrM8tohImfTYr2FUSDfWXE5DcguNO9vgbyScFWGzENCqocYFVJ2 +6Ew== X-Forwarded-Encrypted: i=1; AJvYcCWpzoUEKufxRy6hL5V4fgxbGTS6Q+eei5825sHXeR4ewf22C18cLD2ihCxnOlsNbP2SO0mH3/XTVaP2JpDWyY1wYOaG+IP6rpkH48Sv X-Gm-Message-State: AOJu0YxhTctkQLGQGTPYm/evHgiQkn7N85jKsAqz6auaRTy41+hF4q3e Ndmuwj7eLMnFOmYYhY2FDmRDThejT+3EPBvF3vRvFR6cEHzDiN5Otvzdx9bdGbg= X-Google-Smtp-Source: AGHT+IEJvXpyYOxHwIwWL88KBcpPwn0R7Fchkf1Dzvcc/UuyhrMuuTIaVTEp1xNfrw/QKp8Xtgt69g== X-Received: by 2002:a19:6917:0:b0:513:a39e:ae45 with SMTP id e23-20020a196917000000b00513a39eae45mr4575257lfc.62.1711372619309; Mon, 25 Mar 2024 06:16:59 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.16.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:16:58 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 02/16] regulator: dt-bindings: describe the PMU module of the WCN7850 package Date: Mon, 25 Mar 2024 14:16:10 +0100 Message-Id: <20240325131624.26023-3-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski The WCN7850 package contains discreet modules for WLAN and Bluetooth. They are powered by the Power Management Unit (PMU) that takes inputs from the host and provides LDO outputs. Extend the bindings for QCA6390 to also document this model. Signed-off-by: Bartosz Golaszewski Acked-by: Mark Brown Reviewed-by: Krzysztof Kozlowski --- .../bindings/regulator/qcom,qca6390-pmu.yaml | 36 ++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.y= aml b/Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.yaml index 9d39ff9a75fd..2e543661a1e2 100644 --- a/Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.yaml +++ b/Documentation/devicetree/bindings/regulator/qcom,qca6390-pmu.yaml @@ -16,20 +16,37 @@ description: =20 properties: compatible: - const: qcom,qca6390-pmu + enum: + - qcom,qca6390-pmu + - qcom,wcn7850-pmu + + vdd-supply: + description: VDD supply regulator handle =20 vddaon-supply: description: VDD_AON supply regulator handle =20 + vdddig-supply: + description: VDD_DIG supply regulator handle + vddpmu-supply: description: VDD_PMU supply regulator handle =20 + vddio1p2-supply: + description: VDD_IO_1P2 supply regulator handle + vddrfa0p95-supply: description: VDD_RFA_0P95 supply regulator handle =20 + vddrfa1p2-supply: + description: VDD_RFA_1P2 supply regulator handle + vddrfa1p3-supply: description: VDD_RFA_1P3 supply regulator handle =20 + vddrfa1p8-supply: + description: VDD_RFA_1P8 supply regulator handle + vddrfa1p9-supply: description: VDD_RFA_1P9 supply regulator handle =20 @@ -50,6 +67,10 @@ properties: maxItems: 1 description: GPIO line enabling the ATH11K Bluetooth module supplied b= y the PMU =20 + clocks: + maxItems: 1 + description: Reference clock handle + regulators: type: object description: @@ -83,6 +104,19 @@ allOf: - vddpcie1p3-supply - vddpcie1p9-supply - vddio-supply + - if: + properties: + compatible: + contains: + const: qcom,wcn7850-pmu + then: + required: + - vdd-supply + - vddio-supply + - vddaon-supply + - vdddig-supply + - vddrfa1p2-supply + - vddrfa1p8-supply =20 additionalProperties: false =20 --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wm1-f53.google.com (mail-wm1-f53.google.com [209.85.128.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6BAE713E8A7 for ; Mon, 25 Mar 2024 13:17:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372626; cv=none; b=tqSpO/QN9xQpZZIhBEm7NYnqqg6JmP3uxTR34Q+GsW0muQqShpUr0vDIsmuBw+BGId9P/4EXMs2GQKVLkbeSGl1oQNfGpQRorK1FH4d7t1QqQVqmxuQgT75zOiF9OuaO9oP8ZdujptIhOLTYSyph8+gjT77CLavl6a0qZuGqyQE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372626; c=relaxed/simple; bh=wf7ju8vqsLnPRCFf/XISMutA94e5S8E6OhesXhPqqxY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=aBBbX7WLRNXP4g0Us4fKX2Y1snSBGbpRbZuLzL+UmpSg2Bhfcl71oNrUp0JfK2EwQ/Mpi0ySAyG1V0V6FdgB+ZWGdkfFj4z2P9M9+dFrOifTU9DIJh+A/UjPXsnH+7zE5RO38rl34viDb66DkZkoBm1t44P76rYYEh6OO+nv4so= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=24BaF3aY; arc=none smtp.client-ip=209.85.128.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="24BaF3aY" Received: by mail-wm1-f53.google.com with SMTP id 5b1f17b1804b1-4148c73255eso189425e9.0 for ; Mon, 25 Mar 2024 06:17:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372621; x=1711977421; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=j+WJda3ss7hoIdDj+/OQZmjsnCcOcWE53qMUaI5LDqg=; b=24BaF3aYujXFjNyCLTxmz/p4l0ezw7gLSIA8/bm3tS7bC+qugn0NwR02EJ4EBcrhlB ZCK/GmFXD69os4Hgc1Lh0rmIDpNKmtxLckrnz8C3XxEaQB2bGWMjUTsaVOK3zteU5Wit f5JzIDawC8nwMSySn4zvUV0rj5bmO45a++qBkEDvQfF2JiJAMTlBcPPnP+pyy31K0O8/ P/qPGkdckfnaaaIP85VRaLKJC/8GmvwCdcGR69URLyo5Z1UBkZP+UTf/CJdqaoj1TQWm wiXGe6dZgPLrLQJYbp2col6qaqiVj9FuoZxPgDvW94zZEiyb9lAe16I53E5nxGZLR052 rwWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372621; x=1711977421; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=j+WJda3ss7hoIdDj+/OQZmjsnCcOcWE53qMUaI5LDqg=; b=FgsRiy6ohNCKM7lYopjT/G473kx5JsNl1/qijuZUrko7PnX1D/eocrftXzphLJJnWN 0Hf/urVCmqymfXky3afTaDyuJrXIZ1StJvJlFQc7zGBZTHCGoTQiN1Z83/CUhppnEQ8e sXa+Ns9nVxaD5Qs3kZ4dyI1cEhWVW7dzOa9oYi/EiuvyLrSTaXUVhz93UDrpKtSwuU+G U/0d6p9w2V4o7hzIVp9ESTXR94OUeAxy/cUDXr4cW95UbCW3R4ZXnwaySXg6lQsSnSz2 emNYQ2bICAvQEYGIFWcNL9HcbEPaYlKY4+pOKmPEXrz/B46W3SFc5TcNwg6Re1tfpp7k ESXg== X-Forwarded-Encrypted: i=1; AJvYcCVDj6bLcZkMPdsKJRa+0fsl2TxU5wPJJO68B12Fd7HubUxY+EVbMrDGxhfkqYg0OxAlm19lp/EWYxKZ8zIKb6TLqoakcXms2KNrO3Px X-Gm-Message-State: AOJu0Yx1IJR6quB9S5993BOy9PMuDebiObdJkOm1CXStLPEKsTTaxxj6 dq5Wfo6wlT4inLDjEQdocMIFsgeLnNjRbDnkKAtswKzbZiVY9c/Mr1WJEPNJCtk= X-Google-Smtp-Source: AGHT+IHrGIgcKSHFDPU7oqzDQS0x8s+zHke3Mslpoj4/V9XzWkb5PtGf2llHH3pvarPz9u9Ic3zPsQ== X-Received: by 2002:a05:600c:41cc:b0:414:245:f6df with SMTP id t12-20020a05600c41cc00b004140245f6dfmr4966316wmh.21.1711372621200; Mon, 25 Mar 2024 06:17:01 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.16.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:00 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski , Krzysztof Kozlowski Subject: [PATCH v6 03/16] dt-bindings: net: bluetooth: qualcomm: describe regulators for QCA6390 Date: Mon, 25 Mar 2024 14:16:11 +0100 Message-Id: <20240325131624.26023-4-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski QCA6390 has a compatible listed in the bindings but is missing the regulators description. Add the missing supply property and list the required ones in the allOf section. Signed-off-by: Bartosz Golaszewski Reviewed-by: Krzysztof Kozlowski --- .../net/bluetooth/qualcomm-bluetooth.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluet= ooth.yaml b/Documentation/devicetree/bindings/net/bluetooth/qualcomm-blueto= oth.yaml index 528ef3572b62..d844acaec1d3 100644 --- a/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.ya= ml +++ b/Documentation/devicetree/bindings/net/bluetooth/qualcomm-bluetooth.ya= ml @@ -62,6 +62,9 @@ properties: vdddig-supply: description: VDD_DIG supply regulator handle =20 + vddbtcmx-supply: + description: VDD_BT_CMX supply regulator handle + vddbtcxmx-supply: description: VDD_BT_CXMX supply regulator handle =20 @@ -180,6 +183,20 @@ allOf: - vddrfa0p8-supply - vddrfa1p2-supply - vddrfa1p9-supply + - if: + properties: + compatible: + contains: + enum: + - qcom,qca6390-bt + then: + required: + - vddrfacmn-supply + - vddaon-supply + - vddbtcmx-supply + - vddrfa0p8-supply + - vddrfa1p2-supply + - vddrfa1p7-supply =20 examples: - | --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wm1-f52.google.com (mail-wm1-f52.google.com [209.85.128.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A7E3D140391 for ; Mon, 25 Mar 2024 13:17:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372627; cv=none; b=H6U/YqGeA2xSpmsx1HNxMxFp0KW/fuQm4HM0sqN4TxkeTRNbX9eUdTQ42XZQbGfB/QHZATY3oprRfECUajm2oTD9EKZFuzDIXgl4occTocHO594j7suI1TYA4s+v1TjDP6vdrODhVpo/l64gU1w1K4VvtejLwRXAwdf8YyeR2u8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372627; c=relaxed/simple; bh=hfgHIMnmFRtgUtFw/WNES77oLFQa+HHCcDhOj+ME/vk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=rf45u4/fwTl8Ctc3ioVebrEzahdaxHXVegwBtBKsrRb+62FS0Se3PAgu4UELQWr1EZH4f+RzQ5HxP1liY0mvthxv/9c5dbF3hYyR9Tnmcyz1Pg+FcZxoFw4td12V29GWkBDnMnpVC86TLLFsnoYRfdNzNXhIFuZS+tW7LnWq2II= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=VUqPhL5I; arc=none smtp.client-ip=209.85.128.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="VUqPhL5I" Received: by mail-wm1-f52.google.com with SMTP id 5b1f17b1804b1-4148c04396dso2023735e9.2 for ; Mon, 25 Mar 2024 06:17:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372623; x=1711977423; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=SGOfh5Up2s4Hsb0xRVMMugzy1VQqOQKd6pFoEiLe/18=; b=VUqPhL5I8BiB9qCPijxmso0QfhUJA6kqCUxzrs7jWb5qWPn6s8ZTyU5DCyw8eqPZYm tl47Fcxm/PD4KefzYWfATuusl2WTQgiDV1249UrwnqkQ0p/o3aOGl35FOo9g1qDIzUmv 9GogrgpyYPZQNMis19K6XZxJ+Gv4RPWVgyRsoUBCEovHahW29SzLaptLSuUVHOv/cme5 jIdxO7hZMLxorF5ROk2ibQ5UbXbWXS1YBnmw+65RwpwGMhjvwx6xBQMyatIVYdenoqAW fgGQJe7MloM4mp2EPHkgkzOjLO3CePYdJ611ZHmyQbpJ2k/SUu9kKHA4ilpWAxlGZY9z 6/Xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372623; x=1711977423; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=SGOfh5Up2s4Hsb0xRVMMugzy1VQqOQKd6pFoEiLe/18=; b=A7uw4LVUQ7Dqsw1JtU+s5YSyX8nsV3XfFKf8whDQBEHhy4ZhoIZH9sEhn3GR3OqBg2 ajMTHSEMSv1zWOnJimcXXltV5kOg6ueihB82SozMH6OddSsu9lU7mFv5oJlCILslO1Ky DhTmZRKG36mz7IuNSOippempSHo11BnHK8/HNkYmun41RqN2PoAoIT/C97ekTvuKHPlm DKeZ+18io1lF5DZ21dlYa9jxRhmsNPQAsl18ugKVvAhPP8qOstmXkV36V1J9Ta+Gtpg0 CkJ5TM/gB+tvT6e23x8btRKDGMvd4+/ZaV7fSt/gXVnaZscEN/j0FndVTZ4RoUiF1TlU x6lg== X-Forwarded-Encrypted: i=1; AJvYcCWMGQAoY3Evh/8/NkmiVl0LeIQTJGq2NitP9g3hOl8MJYvXpUUtq4UhnbA03xRA+/IzLheUjozAO81QY05Tgtwd5IGbT3Ridkw5y1oQ X-Gm-Message-State: AOJu0YwEUKXekRlu8jmrRimVESH8sB7S/PiJ2PALYxbZmnnYzzFmTM/t AZf4hVvAaw7Vl20e1IkGEx7SkiV1bP2WKHB0p7CaCsP9ofP/6B849MmgeblmDdY= X-Google-Smtp-Source: AGHT+IHZRY1QWKBr33rhlgymM9kBVbcL1shwEGnPH+sbwWy/MBO17W93kXESsMvT66cCBqV7Q+yhyA== X-Received: by 2002:a05:600c:4714:b0:414:7e73:1f8c with SMTP id v20-20020a05600c471400b004147e731f8cmr4727120wmo.37.1711372622673; Mon, 25 Mar 2024 06:17:02 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:02 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 04/16] dt-bindings: net: wireless: qcom,ath11k: describe the ath11k on QCA6390 Date: Mon, 25 Mar 2024 14:16:12 +0100 Message-Id: <20240325131624.26023-5-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Add a PCI compatible for the ATH11K module on QCA6390 and describe the power inputs from the PMU that it consumes. Signed-off-by: Bartosz Golaszewski --- .../net/wireless/qcom,ath11k-pci.yaml | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k-pci= .yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k-pci.yaml index 41d023797d7d..8675d7d0215c 100644 --- a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k-pci.yaml +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k-pci.yaml @@ -17,6 +17,7 @@ description: | properties: compatible: enum: + - pci17cb,1101 # QCA6390 - pci17cb,1103 # WCN6855 =20 reg: @@ -28,10 +29,55 @@ properties: string to uniquely identify variant of the calibration data for desi= gns with colliding bus and device ids =20 + vddrfacmn-supply: + description: VDD_RFA_CMN supply regulator handle + + vddaon-supply: + description: VDD_AON supply regulator handle + + vddwlcx-supply: + description: VDD_WL_CX supply regulator handle + + vddwlmx-supply: + description: VDD_WL_MX supply regulator handle + + vddrfa0p8-supply: + description: VDD_RFA_0P8 supply regulator handle + + vddrfa1p2-supply: + description: VDD_RFA_1P2 supply regulator handle + + vddrfa1p7-supply: + description: VDD_RFA_1P7 supply regulator handle + + vddpcie0p9-supply: + description: VDD_PCIE_0P9 supply regulator handle + + vddpcie1p8-supply: + description: VDD_PCIE_1P8 supply regulator handle + required: - compatible - reg =20 +allOf: + - if: + properties: + compatible: + contains: + const: pci17cb,1101 + then: + required: + - vddrfacmn-supply + - vddaon-supply + - vddwlcx-supply + - vddwlmx-supply + - vddrfa0p8-supply + - vddrfa1p2-supply + - vddrfa1p7-supply + - vddpcie0p9-supply + - vddpcie1p8-supply + additionalProperties: false =20 examples: --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-lj1-f172.google.com (mail-lj1-f172.google.com [209.85.208.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B554B142624 for ; Mon, 25 Mar 2024 13:17:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372629; cv=none; b=B7xtVVWdE9EWA/yXmeGz3p6g6tNt7GzqSfCym9ilwu2N3c2EShkBFSQX2ua7+kjw7uitcv/+pXOv3RglYQLHwFBT8Hi3R/thK8vwiJ1UZd1Z+P++Ts5fq8i4vmcOcyym6YhUq6t3+H0bt4k8OKEYRbhSgYuIJrncgatcP89Ipa4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372629; c=relaxed/simple; bh=5+IC9NWduGMYDJwoz+M/P/TbE3TVb3XsldeZYp6QjIw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=H5GoUNr5vz0ewKIAhQChXyHahccyaC6xLEzWbOs3a0riaUHmQvU2h6qT6MgKP7FFmGAbPTBSf9pWD/d1CNm4LaBgkhOUd0m9+HcuRf2tgSvnPpwGHno4vN42VkcLlroBdMCF8v0EwQhQrQKca+GlaoC+gLImFau9xs3Rshq9gMU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=te5fwP3n; arc=none smtp.client-ip=209.85.208.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="te5fwP3n" Received: by mail-lj1-f172.google.com with SMTP id 38308e7fff4ca-2d23114b19dso64180801fa.3 for ; Mon, 25 Mar 2024 06:17:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372625; x=1711977425; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=waqbyPBy7PW/+wkBLTlsUUO+Lqndku73jazDU1uKB3A=; b=te5fwP3nxqu1LtXMzimVk2xRDWG3qPuSArGJCi4MO5HGoR/gRY2KFQb8BUUpJdCo3M Exi4kw55lcjMKE0OQN4CldHhZqtIbf3vJ9J9sFKJF5tUTRBK/sSC0PF5JQ/+E5VTw5jt 27DwZrtQI9yXw9jc5R6QdbMyvqt/ULTsbKk3B2rgkDjIEQSTsKJGTIB8i/Rxyq6BN9FP 6m6XnmYz6T/OwacH8a1FPIi1iofz9fC6smSShOzmgLt3SN9ahUaUl2F6+z2HPReEASAS 22+Zqqn7CjID0cLlWfuqf7u+HSs/LVfKJgDO+lShzFCJgU6eSXx8ujW7rB19k4S1Sdap 8kAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372625; x=1711977425; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=waqbyPBy7PW/+wkBLTlsUUO+Lqndku73jazDU1uKB3A=; b=a7cYatOSsQwmFGsnbwvkQI5Z+78vKGGNGu0sbHZuzZQxcTWxs30EIVhLTspi87RXKc sgGu1HMtV6yOkhDp7r5NmF1S40P6cT8pvVQSfBibtqORBaeuBObcNpDG+f6rJY71EaKM HMS1dsbOMLMWQup3Mlut1vTpYL33Wg7vdBEygWbHiPjRzj4Pb/CH/nFyAo6yO5hNSad4 vnTL5vkpBaqJoNhMzBxemLN7G2s9zDMzdCL/1Y78gzL+Cq48vwT+q5j5Htz+eWnXsvVL EtyXaWE1unsTUz9MDDl7oBvMemv1y++KLQhlq5Nr8CwmioQr2mhLMyV1Af9kpfveojJF Utew== X-Forwarded-Encrypted: i=1; AJvYcCXv8yaloYhNfD71C1vc0l5rGKKV22ixN3/sdvyOHz8ls2Xf2M9uT4itAm76JIENJmfFkUPkfBjvjtdp4ILqsUobqNEgz49fMs2kYePT X-Gm-Message-State: AOJu0Yx6rYfBN5Q8NwbH5Kw0KmFgoFy+lEuEidLXFZDzXEKQqXDd5g+m mg+K0amJYoAA2E43F7jg1TVsUnwkLkLgcUS571je6xC7uH1DDYuub7AiwvIgcuA= X-Google-Smtp-Source: AGHT+IFgiUDvmg0zWPchJA4PbJqaWP5kuvnAdsXU3LI0ZosAYxjZT9VquQ4Zw59uesAhsuP/btzmyw== X-Received: by 2002:a2e:a443:0:b0:2d4:9201:d4ff with SMTP id v3-20020a2ea443000000b002d49201d4ffmr4712403ljn.5.1711372624633; Mon, 25 Mar 2024 06:17:04 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:03 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 05/16] dt-bindings: net: wireless: describe the ath12k PCI module Date: Mon, 25 Mar 2024 14:16:13 +0100 Message-Id: <20240325131624.26023-6-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Add device-tree bindings for the ATH12K module found in the WCN7850 package. Signed-off-by: Bartosz Golaszewski Reviewed-by: Krzysztof Kozlowski --- .../bindings/net/wireless/qcom,ath12k.yaml | 100 ++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/wireless/qcom,ath= 12k.yaml diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yam= l b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml new file mode 100644 index 000000000000..c0aad4815953 --- /dev/null +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) 2024 Linaro Limited +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/wireless/qcom,ath12k.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Technologies ath12k wireless devices (PCIe) + +maintainers: + - Bartosz Golaszewski + - Jeff Johnson + - Kalle Valo + +description: + Qualcomm Technologies IEEE 802.11ax PCIe devices. + +properties: + compatible: + enum: + - pci17cb,1107 # WCN7850 + + reg: + maxItems: 1 + + vddaon-supply: + description: VDD_AON supply regulator handle + + vddwlcx-supply: + description: VDD_WLCX supply regulator handle + + vddwlmx-supply: + description: VDD_WLMX supply regulator handle + + vddrfacmn-supply: + description: VDD_RFA_CMN supply regulator handle + + vddrfa0p8-supply: + description: VDD_RFA_0P8 supply regulator handle + + vddrfa1p2-supply: + description: VDD_RFA_1P2 supply regulator handle + + vddrfa1p8-supply: + description: VDD_RFA_1P8 supply regulator handle + + vddpcie0p9-supply: + description: VDD_PCIE_0P9 supply regulator handle + + vddpcie1p8-supply: + description: VDD_PCIE_1P8 supply regulator handle + +required: + - compatible + - reg + - vddaon-supply + - vddwlcx-supply + - vddwlmx-supply + - vddrfacmn-supply + - vddrfa0p8-supply + - vddrfa1p2-supply + - vddrfa1p8-supply + - vddpcie0p9-supply + - vddpcie1p8-supply + +additionalProperties: false + +examples: + - | + #include + #include + pcie { + #address-cells =3D <3>; + #size-cells =3D <2>; + + pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + bus-range =3D <0x01 0xff>; + + wifi@0 { + compatible =3D "pci17cb,1107"; + reg =3D <0x10000 0x0 0x0 0x0 0x0>; + + vddaon-supply =3D <&vreg_pmu_aon_0p59>; + vddwlcx-supply =3D <&vreg_pmu_wlcx_0p8>; + vddwlmx-supply =3D <&vreg_pmu_wlmx_0p85>; + vddrfacmn-supply =3D <&vreg_pmu_rfa_cmn>; + vddrfa0p8-supply =3D <&vreg_pmu_rfa_0p8>; + vddrfa1p2-supply =3D <&vreg_pmu_rfa_1p2>; + vddrfa1p8-supply =3D <&vreg_pmu_rfa_1p8>; + vddpcie0p9-supply =3D <&vreg_pmu_pcie_0p9>; + vddpcie1p8-supply =3D <&vreg_pmu_pcie_1p8>; + }; + }; + }; --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4068B144D17 for ; Mon, 25 Mar 2024 13:17:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.49 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372631; cv=none; b=QB5f63mBcXH2qMYG1qbIf+vP7DiL2qwRM4vpOyCZ+QltV1OFo1a+2LOGFznXfAwHAVRF5d4txu4gUBw/y9v/b4hmPK6/GFiDVaIgRzNIkbfC8qLJsh5kO+kVu2aF53TWXZVNY/c77Q0+K6NQpl5OOUq30x6dREeZnJN4vZqI9pI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372631; c=relaxed/simple; bh=e+Uw5ev6GdczC1r6ejIbFGvXcTwjLsZrZJkSQw55rhQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=hjcaS9l3Teex0kE5CceTNrAOxsxrFGBx9V1n2HMfusdAnOZimboK1KRnfMaR1tyv9Qs2fIUcQBM5vkjahBlGFSPJ39VQKoGJFmh/EhqCFDOCasML8i+Y/t1pgLSIeKPRakjekqMbFT0Ao/wgYHHWf7Y60fRe+FrwDcJ8WwYGJ5k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=AQFwJJ3T; arc=none smtp.client-ip=209.85.221.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="AQFwJJ3T" Received: by mail-wr1-f49.google.com with SMTP id ffacd0b85a97d-34100f4f9a2so2573803f8f.2 for ; Mon, 25 Mar 2024 06:17:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372626; x=1711977426; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=FXqgV10wLdemUky+/tQqia1VOjmcBtD6/Htq33oA/Pg=; b=AQFwJJ3TLaOEDfP8sz4cnDFXMJQ/xgRpSWI5Q/cJV31/a5ckBce31dvuqGyEsEJRrh CtZXlkqgT9BgyE2Nh6pkQjiPuOkGDxIAJvgGUPhQ3m3GHYmxv2b0dwfS0ihrO7ZY6gPq 031NjZqij6K4mzDbS5w+AeYfvBFX1LvMMbMIRp7HXeZMU/nvA7+DXXoMqEa8k160r7xf KaJi0rZWKQIMvki9tbIr65F5QvGWXFreQ99YEdOYuVgtHxmcT6/wOzYDM6mjb+ENkjSN 7A/YNuI/BNT3nsvpFf31ZLafSVijAZn8kWciptFj9E0ZujMKtin0P9APjEXbR2fWaZ+z x4UQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372626; x=1711977426; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=FXqgV10wLdemUky+/tQqia1VOjmcBtD6/Htq33oA/Pg=; b=T4BvsYqwx4HpMJswJS52QK55K8y/F08sjtucErT6KZzDuJ2yjWt+tDIbMpiAa4jI3U cNn4ioQymHW99Oq1hs2AQw9783f5/yC9GxIdNLecLCB9NouSkmm+5yeHZDav8yu3dPGi 0ka1iQBbZb+sszLQnwEZJnSHiKxn1kJRhOZyQ/lkc/qB3zk7tpbOoto+m/FFhHVtZfFg TE8ISjfuhpq7hIaC77iczKKIv66CWhdbT3nIqil3E0h+NVPUY5Pm+a6a8g3cy3Sa9k5R ldZkqC298yMEJ7VTUNhZxUbD4NQ6HPF+HiBJNnEmgmT4fr9TAQ88z4f8KpT8FN3O5yYR TY/A== X-Forwarded-Encrypted: i=1; AJvYcCUYKqUseWuE4PdvmyqB9s++5w5tkiJnjDzcsdjEh5Vaj2ihW000s10sRnFkd4DO4HmhR6SwQaFfHPt8UQEbQxgtVm9Wn4CAFf6zOdKA X-Gm-Message-State: AOJu0YxxIA1F/vx7elm6fcXCyP+D/SDr0U4Ht44US5wKrf9d16b+MkNx 9/2fR/pzT9N0cdVJkgIHzA9YX77uIIpHKZQyE7bLxhEPlrNXh8ielLg9ZeKik6o= X-Google-Smtp-Source: AGHT+IECJR0p9ogrxbKaWU9ZWLY0JwskHADG4SMdCz6HUsIQZgEY4wnn3jcLrif9vDvI9kW56RU61g== X-Received: by 2002:a5d:628f:0:b0:33e:4d34:f40f with SMTP id k15-20020a5d628f000000b0033e4d34f40fmr5202727wru.46.1711372626382; Mon, 25 Mar 2024 06:17:06 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:05 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 06/16] arm64: dts: qcom: sm8550-qrd: add the Wifi node Date: Mon, 25 Mar 2024 14:16:14 +0100 Message-Id: <20240325131624.26023-7-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Describe the ath12k WLAN on-board the WCN7850 module present on the board. [Neil: authored the initial version of the change] Co-developed-by: Neil Armstrong Signed-off-by: Neil Armstrong Signed-off-by: Bartosz Golaszewski --- arch/arm64/boot/dts/qcom/sm8550-qrd.dts | 97 +++++++++++++++++++++++++ arch/arm64/boot/dts/qcom/sm8550.dtsi | 10 +++ 2 files changed, 107 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm8550-qrd.dts b/arch/arm64/boot/dts/= qcom/sm8550-qrd.dts index 92f015017418..caac40a799a5 100644 --- a/arch/arm64/boot/dts/qcom/sm8550-qrd.dts +++ b/arch/arm64/boot/dts/qcom/sm8550-qrd.dts @@ -214,6 +214,68 @@ vph_pwr: vph-pwr-regulator { regulator-always-on; regulator-boot-on; }; + + wcn7850-pmu { + compatible =3D "qcom,wcn7850-pmu"; + + pinctrl-names =3D "default"; + pinctrl-0 =3D <&wlan_en>, <&pmk8550_sleep_clk>; + + wlan-enable-gpios =3D <&tlmm 80 GPIO_ACTIVE_HIGH>; + /* + * TODO Add bt-enable-gpios once the Bluetooth driver is + * converted to using the power sequencer. + */ + + vdd-supply =3D <&vreg_s5g_0p85>; + vddio-supply =3D <&vreg_l15b_1p8>; + vddaon-supply =3D <&vreg_s2g_0p85>; + vdddig-supply =3D <&vreg_s4e_0p95>; + vddrfa1p2-supply =3D <&vreg_s4g_1p25>; + vddrfa1p8-supply =3D <&vreg_s6g_1p86>; + + regulators { + vreg_pmu_rfa_cmn: ldo0 { + regulator-name =3D "vreg_pmu_rfa_cmn"; + }; + + vreg_pmu_aon_0p59: ldo1 { + regulator-name =3D "vreg_pmu_aon_0p59"; + }; + + vreg_pmu_wlcx_0p8: ldo2 { + regulator-name =3D "vreg_pmu_wlcx_0p8"; + }; + + vreg_pmu_wlmx_0p85: ldo3 { + regulator-name =3D "vreg_pmu_wlmx_0p85"; + }; + + vreg_pmu_btcmx_0p85: ldo4 { + regulator-name =3D "vreg_pmu_btcmx_0p85"; + }; + + vreg_pmu_rfa_0p8: ldo5 { + regulator-name =3D "vreg_pmu_rfa_0p8"; + }; + + vreg_pmu_rfa_1p2: ldo6 { + regulator-name =3D "vreg_pmu_rfa_1p2"; + }; + + vreg_pmu_rfa_1p8: ldo7 { + regulator-name =3D "vreg_pmu_rfa_1p8"; + }; + + vreg_pmu_pcie_0p9: ldo8 { + regulator-name =3D "vreg_pmu_pcie_0p9"; + }; + + vreg_pmu_pcie_1p8: ldo9 { + regulator-name =3D "vreg_pmu_pcie_1p8"; + }; + }; + }; }; =20 &apps_rsc { @@ -824,6 +886,23 @@ &pcie0 { status =3D "okay"; }; =20 +&pcieport0 { + wifi@0 { + compatible =3D "pci17cb,1107"; + reg =3D <0x10000 0x0 0x0 0x0 0x0>; + + vddrfacmn-supply =3D <&vreg_pmu_rfa_cmn>; + vddaon-supply =3D <&vreg_pmu_aon_0p59>; + vddwlcx-supply =3D <&vreg_pmu_wlcx_0p8>; + vddwlmx-supply =3D <&vreg_pmu_wlmx_0p85>; + vddrfa0p8-supply =3D <&vreg_pmu_rfa_0p8>; + vddrfa1p2-supply =3D <&vreg_pmu_rfa_1p2>; + vddrfa1p8-supply =3D <&vreg_pmu_rfa_1p8>; + vddpcie0p9-supply =3D <&vreg_pmu_pcie_0p9>; + vddpcie1p8-supply =3D <&vreg_pmu_pcie_1p8>; + }; +}; + &pcie0_phy { vdda-phy-supply =3D <&vreg_l1e_0p88>; vdda-pll-supply =3D <&vreg_l3e_1p2>; @@ -911,6 +990,17 @@ &pcie_1_phy_aux_clk { clock-frequency =3D <1000>; }; =20 +&pmk8550_gpios { + pmk8550_sleep_clk: sleep-clk-state { + pins =3D "gpio3"; + function =3D "func1"; + input-disable; + output-enable; + bias-disable; + power-source =3D <0>; + }; +}; + &qupv3_id_0 { status =3D "okay"; }; @@ -1084,6 +1174,13 @@ wcd_default: wcd-reset-n-active-state { bias-disable; output-low; }; + + wlan_en: wlan-en-state { + pins =3D "gpio80"; + function =3D "gpio"; + drive-strength =3D <8>; + bias-pull-down; + }; }; =20 &uart7 { diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qco= m/sm8550.dtsi index 5cae8d773cec..f09406fd0ca6 100644 --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi @@ -1770,6 +1770,16 @@ pcie0: pcie@1c00000 { phy-names =3D "pciephy"; =20 status =3D "disabled"; + + pcieport0: pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + bus-range =3D <0x01 0xff>; + }; }; =20 pcie0_phy: phy@1c06000 { --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wr1-f46.google.com (mail-wr1-f46.google.com [209.85.221.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 86C44146592 for ; Mon, 25 Mar 2024 13:17:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.46 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372632; cv=none; b=HRYNmW2+qriVSK20HOEdqly6pJHXEuHle7bAgTmUgHozLh9vnEdW3XHe9cTYQMGsVtlf44F9kRbs8EYW7EbxWx6m58m7LjQ2Lodbw/bH4I+lWiHG2uO1n/kwOuIdjOjSEoEHAUjqhWm/Gy7LBhp8Wju9zQzoDtH72FNjAxGrzvE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372632; c=relaxed/simple; bh=Gt0HBEUYaiaCp6S85CEl2I5/60+x5rZBrGnle/iby0Y=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Zrc3GO8Do5wgaRKdt51xzsGzkw7zYPjldfYomJ/i25kmkQc5SugEFgHtxTrwpF2JH+R9MbqNPBoJQngbIeIUaIaiImPVWX0glujxk64p8zTYohKKzuH3uaxcjtBvkWTC6jLGiACxsJ33oG5vigA6k+EP8gE3oSy2QvxBh5F7QjM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=G1xD/ZbI; arc=none smtp.client-ip=209.85.221.46 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="G1xD/ZbI" Received: by mail-wr1-f46.google.com with SMTP id ffacd0b85a97d-33ed4dd8659so3329756f8f.0 for ; Mon, 25 Mar 2024 06:17:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372628; x=1711977428; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=KPeBUmTPYivASWtGIa+pvAK3+Pm4Pzs8czyg55ZY9xY=; b=G1xD/ZbI1DR4rW8XWJEx3fD0I5VR0nIcEkelUqQkTrjAeDseHC6K99uxSGuDVQGTrH F6aAH5dhnjohgbqnJ76sggXXysp9hU8wcloLFr0bXzughx4959dJIGCpon8YFU5CgCVe NPHpTiJq0zV36+VrjMErFuk+CPfWp0/edCiTtMG9rZ5ycwq2IpIddj4NCkBWV6XOdRCw LRfOztSfi3FgHaJFWdwCvz1IY0fyc8m6G960H9JNaisU/MwwYpKoC7W7kHZ2u5boGf6T F6qvX6dPDQusrg/DUHK5YmhNyDRmda7AKXvK/aXv5dxyVsCAuJ1MNcQDzrE2+uLWY4kc Ldaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372628; x=1711977428; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=KPeBUmTPYivASWtGIa+pvAK3+Pm4Pzs8czyg55ZY9xY=; b=dnyeF/Gt+M/6CjPARrstWr+iZOQhWjDHPpaFpZcPMyWoxV9bU8NLpg6TiG7y7wrGZg 6r0BkBC2Uq6nSmXq7StBgoxmnfw9joCqEaX9gupufXTH/zZ0oXKXjGqbvjIkRHTHE0Zr UntjBpynLeDomrTdcs2q+o/nZukfQfw4YS3XKbwsnjJgaMriJzNd/pz8Z3OrpRPoXnTP P9YYQcBoCACHWnDnhx4IycfjX1edsDuidkScVfcuXMOU9j3q6TpcN+TK4geP4mSFin18 47PwOUtf46qqyGs+t0P3hPn4U/pdltrsn5b1hKoonCLoY6PNJWLDF8Sma6k0KnsdXPxZ hLgA== X-Forwarded-Encrypted: i=1; AJvYcCWtHi4hkaD8j6GIIustkc8NpsXNR2x+W6opQsySDzzXMAPTnrUwaYupAIpQglUvajBGpckivmkgLWX/h8R35cNWupM/pitNoCRASs7I X-Gm-Message-State: AOJu0YxMoVZAXGlDYTwiLHNG4ikwxBWLaADkYkhn7N8rnz3l362QI2ji 1DjYh1Gh0MDvj6mcwzgqt/o/utENXaSW0HRR3Vq+DFt1IO27PeMaN9TQEpHtBoU= X-Google-Smtp-Source: AGHT+IH98yEYhOHJJFWS8m+uqjbnjDx5iMf7GGU6ho++xWIabMIfxtDM6MgrThuGr1kE+KpgT8zINQ== X-Received: by 2002:a5d:4607:0:b0:33e:c68d:d536 with SMTP id t7-20020a5d4607000000b0033ec68dd536mr4583018wrq.15.1711372627823; Mon, 25 Mar 2024 06:17:07 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:07 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 07/16] arm64: dts: qcom: sm8650-qrd: add the Wifi node Date: Mon, 25 Mar 2024 14:16:15 +0100 Message-Id: <20240325131624.26023-8-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Describe the ath12k WLAN on-board the WCN7850 module present on the board. [Neil: authored the initial version of the change] Co-developed-by: Neil Armstrong Signed-off-by: Neil Armstrong Signed-off-by: Bartosz Golaszewski --- arch/arm64/boot/dts/qcom/sm8650-qrd.dts | 89 +++++++++++++++++++++++++ arch/arm64/boot/dts/qcom/sm8650.dtsi | 10 +++ 2 files changed, 99 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm8650-qrd.dts b/arch/arm64/boot/dts/= qcom/sm8650-qrd.dts index b07cac2e5bc8..c87d21115716 100644 --- a/arch/arm64/boot/dts/qcom/sm8650-qrd.dts +++ b/arch/arm64/boot/dts/qcom/sm8650-qrd.dts @@ -203,6 +203,71 @@ wcd_codec_headset_in: endpoint { }; }; }; + + wcn7850-pmu { + compatible =3D "qcom,wcn7850-pmu"; + + pinctrl-names =3D "default"; + pinctrl-0 =3D <&wlan_en>; + + wlan-enable-gpios =3D <&tlmm 16 GPIO_ACTIVE_HIGH>; + /* + * TODO Add bt-enable-gpios once the Bluetooth driver is + * converted to using the power sequencer. + */ + + vdd-supply =3D <&vreg_s4i_0p85>; + vddio-supply =3D <&vreg_l15b_1p8>; + vddio1p2-supply =3D <&vreg_l3c_1p2>; + vddaon-supply =3D <&vreg_s2c_0p8>; + vdddig-supply =3D <&vreg_s3c_0p9>; + vddrfa1p2-supply =3D <&vreg_s1c_1p2>; + vddrfa1p8-supply =3D <&vreg_s6c_1p8>; + + clocks =3D <&rpmhcc RPMH_RF_CLK1>; + + regulators { + vreg_pmu_rfa_cmn: ldo0 { + regulator-name =3D "vreg_pmu_rfa_cmn"; + }; + + vreg_pmu_aon_0p59: ldo1 { + regulator-name =3D "vreg_pmu_aon_0p59"; + }; + + vreg_pmu_wlcx_0p8: ldo2 { + regulator-name =3D "vreg_pmu_wlcx_0p8"; + }; + + vreg_pmu_wlmx_0p85: ldo3 { + regulator-name =3D "vreg_pmu_wlmx_0p85"; + }; + + vreg_pmu_btcmx_0p85: ldo4 { + regulator-name =3D "vreg_pmu_btcmx_0p85"; + }; + + vreg_pmu_rfa_0p8: ldo5 { + regulator-name =3D "vreg_pmu_rfa_0p8"; + }; + + vreg_pmu_rfa_1p2: ldo6 { + regulator-name =3D "vreg_pmu_rfa_1p2"; + }; + + vreg_pmu_rfa_1p8: ldo7 { + regulator-name =3D "vreg_pmu_rfa_1p8"; + }; + + vreg_pmu_pcie_0p9: ldo8 { + regulator-name =3D "vreg_pmu_pcie_0p9"; + }; + + vreg_pmu_pcie_1p8: ldo9 { + regulator-name =3D "vreg_pmu_pcie_1p8"; + }; + }; + }; }; =20 &apps_rsc { @@ -845,6 +910,23 @@ &pcie0 { status =3D "okay"; }; =20 +&pcieport0 { + wifi@0 { + compatible =3D "pci17cb,1107"; + reg =3D <0x10000 0x0 0x0 0x0 0x0>; + + vddrfacmn-supply =3D <&vreg_pmu_rfa_cmn>; + vddaon-supply =3D <&vreg_pmu_aon_0p59>; + vddwlcx-supply =3D <&vreg_pmu_wlcx_0p8>; + vddwlmx-supply =3D <&vreg_pmu_wlmx_0p85>; + vddrfa0p8-supply =3D <&vreg_pmu_rfa_0p8>; + vddrfa1p2-supply =3D <&vreg_pmu_rfa_1p2>; + vddrfa1p8-supply =3D <&vreg_pmu_rfa_1p8>; + vddpcie0p9-supply =3D <&vreg_pmu_pcie_0p9>; + vddpcie1p8-supply =3D <&vreg_pmu_pcie_1p8>; + }; +}; + &pcie0_phy { vdda-phy-supply =3D <&vreg_l1i_0p88>; vdda-pll-supply =3D <&vreg_l3i_1p2>; @@ -1139,6 +1221,13 @@ wcd_default: wcd-reset-n-active-state { bias-disable; output-low; }; + + wlan_en: wlan-en-state { + pins =3D "gpio16"; + function =3D "gpio"; + drive-strength =3D <8>; + bias-pull-down; + }; }; =20 &uart14 { diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qco= m/sm8650.dtsi index 78757f01a7d8..693857905fe9 100644 --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi @@ -2293,6 +2293,16 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>, dma-coherent; =20 status =3D "disabled"; + + pcieport0: pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + bus-range =3D <0x01 0xff>; + }; }; =20 pcie0_phy: phy@1c06000 { --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-lf1-f49.google.com (mail-lf1-f49.google.com [209.85.167.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65E73149E16 for ; Mon, 25 Mar 2024 13:17:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.49 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372635; cv=none; b=ptKfoZWDU8DP4PnbE2tsOIk8vedtFgMQ0kQ7zPoO90wysudpaVglDwXDDf8UvzEZagQB3PIbq2I9kUfQPuo4FOSA+seT3NcCi2LjN29Ou5FyLOHay9qv28IP6K8JdHTsyG273dgnpxZn1YXLgQJRCuZc0ItbmVLH5Q38zNUTFVw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372635; c=relaxed/simple; bh=l1oNGeBpXWbiN0HWItKMdUKpXzwyplVNNxsp1rBMazA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Iv1Z8XST2myLqem+Ez176dhYVtyVtw2hmw1zsfsuV4aol6lA8kGG0dpi5h/I+QbO8e0UaJFrJJNdqJDAwnxR37AGiJOzKoawj3y65+6jIBZe2ChoIzGCEWNBswjXqcK+cJQcMEFzOxrUoIg0Ijp3V1UWSdIn6/dLB75E6NvhfpA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=zuGtqxwD; arc=none smtp.client-ip=209.85.167.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="zuGtqxwD" Received: by mail-lf1-f49.google.com with SMTP id 2adb3069b0e04-513edc88d3cso4631606e87.0 for ; Mon, 25 Mar 2024 06:17:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372629; x=1711977429; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=31I2bObQrFIIaCAs32ptdMnoN+M29q3IZ8UHiUSqu6s=; b=zuGtqxwDPZISuontNxJIzxngsie2aRm5zf5zV+BsyJAtUe2u/6NOXbJTnNlCbfk9ZH a2f4lTV5Zffjlh05o1ca40cngtVWT9BtO3oOksQlkhDZDsLSFTv3KOszhvLH4dEUNPbo 1vwJeX7GiPRPHhG8LH5kqjp0nh6IeNyxEldqCV5jRdc/eQUilyLJha60qKS6GFwVNR9Z 4LarcDLslDHxuAqmgUJNq38HJU/ha/IlR22ulSR/LsrDTtEwendwMkodvTUMOQzQnC/K A8bUmafcY/HH5c4CBSdKfZrALEAaPUCwKVfENuo2Pw017Z25Z7B2rCyiER21Xzc6Y5+a yYTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372629; x=1711977429; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=31I2bObQrFIIaCAs32ptdMnoN+M29q3IZ8UHiUSqu6s=; b=YA1cM9uLMlkQ7vMLv6YVRDtsj4piAgjy943ux1VvSRbogDlVc6GTcLxeiZxeGxpW/8 Yk1Z8g3pYEVzTCfFBDxPVNamKivzKhVKIcyV2ZIKV13X1m4mb2Nxyp/cLH/gP4fog4bq +csZzdUpBbmxeQv63mLxMwtUsPTCo1SI+JWro0XlqyOW6gfd/4yqauq0hWr5S1czazrM RhwLXs7Cf7Psm0DnDe8mWRTrEtvHyD+7TTEvDA1zM/JggBo9v0wcjeB6x7scoCXbDUFm 9Wg/sD/W9u/+elbVV0OPXCJscgNowjw41YpEYC+RQHmCsypEOPA6s3/pViN+m4IBx7Je UhdA== X-Forwarded-Encrypted: i=1; AJvYcCXrdqzXDrRxxRVEF3/wxf1uxxJ530d6Pwig5wiZqUEZHAAoxbvZ+Vt+kw1iXcZF3ftlzU3u4wJwfTyhibTXCBX3wNFbB0cciSs3/SUE X-Gm-Message-State: AOJu0YyU41bR+GLIQ0CMZHoZxYqNEDj5kF5vbwOx2EpVYhTERu8YEMks hZ6xfWvNO0MPRhuVOcjGEkQFtPT6df+fa+oTMYOqo0Xq6ubu2jHKnJmPzUs0jBA= X-Google-Smtp-Source: AGHT+IGbw2ZkHYwGxUjLvP2N6vzg1B/GrwlotzQlF7qFjQqOwVixXBkn1Bn7cQVKRLiStWLenDsc3Q== X-Received: by 2002:a19:4344:0:b0:513:1a38:2406 with SMTP id m4-20020a194344000000b005131a382406mr4351374lfj.13.1711372629255; Mon, 25 Mar 2024 06:17:09 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:08 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 08/16] arm64: dts: qcom: qrb5165-rb5: add the Wifi node Date: Mon, 25 Mar 2024 14:16:16 +0100 Message-Id: <20240325131624.26023-9-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Add a node for the PMU module of the QCA6391 present on the RB5 board. Assign its LDO power outputs to the existing Bluetooth module. Add a node for the PCIe port to sm8250.dtsi and define the WLAN node on it in the board's .dts and also make it consume the power outputs of the PMU. Signed-off-by: Bartosz Golaszewski --- arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 103 ++++++++++++++++++++--- arch/arm64/boot/dts/qcom/sm8250.dtsi | 10 +++ 2 files changed, 102 insertions(+), 11 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts= /qcom/qrb5165-rb5.dts index cd0db4f31d4a..24f528fc741f 100644 --- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts +++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts @@ -108,6 +108,67 @@ lt9611_3v3: lt9611-3v3 { regulator-always-on; }; =20 + qca6390-pmu { + compatible =3D "qcom,qca6390-pmu"; + + pinctrl-names =3D "default"; + pinctrl-0 =3D <&bt_en_state>, <&wlan_en_state>; + + vddaon-supply =3D <&vreg_s6a_0p95>; + vddpmu-supply =3D <&vreg_s2f_0p95>; + vddrfa0p95-supply =3D <&vreg_s2f_0p95>; + vddrfa1p3-supply =3D <&vreg_s8c_1p3>; + vddrfa1p9-supply =3D <&vreg_s5a_1p9>; + vddpcie1p3-supply =3D <&vreg_s8c_1p3>; + vddpcie1p9-supply =3D <&vreg_s5a_1p9>; + vddio-supply =3D <&vreg_s4a_1p8>; + + wlan-enable-gpios =3D <&tlmm 20 GPIO_ACTIVE_HIGH>; + bt-enable-gpios =3D <&tlmm 21 GPIO_ACTIVE_HIGH>; + + regulators { + vreg_pmu_rfa_cmn: ldo0 { + regulator-name =3D "vreg_pmu_rfa_cmn"; + }; + + vreg_pmu_aon_0p59: ldo1 { + regulator-name =3D "vreg_pmu_aon_0p59"; + }; + + vreg_pmu_wlcx_0p8: ldo2 { + regulator-name =3D "vreg_pmu_wlcx_0p8"; + }; + + vreg_pmu_wlmx_0p85: ldo3 { + regulator-name =3D "vreg_pmu_wlmx_0p85"; + }; + + vreg_pmu_btcmx_0p85: ldo4 { + regulator-name =3D "vreg_pmu_btcmx_0p85"; + }; + + vreg_pmu_rfa_0p8: ldo5 { + regulator-name =3D "vreg_pmu_rfa_0p8"; + }; + + vreg_pmu_rfa_1p2: ldo6 { + regulator-name =3D "vreg_pmu_rfa_1p2"; + }; + + vreg_pmu_rfa_1p7: ldo7 { + regulator-name =3D "vreg_pmu_rfa_1p7"; + }; + + vreg_pmu_pcie_0p9: ldo8 { + regulator-name =3D "vreg_pmu_pcie_0p9"; + }; + + vreg_pmu_pcie_1p8: ldo9 { + regulator-name =3D "vreg_pmu_pcie_1p8"; + }; + }; + }; + thermal-zones { conn-thermal { polling-delay-passive =3D <0>; @@ -734,6 +795,23 @@ &pcie0_phy { vdda-pll-supply =3D <&vreg_l9a_1p2>; }; =20 +&pcieport0 { + wifi@0 { + compatible =3D "pci17cb,1101"; + reg =3D <0x10000 0x0 0x0 0x0 0x0>; + + vddrfacmn-supply =3D <&vreg_pmu_rfa_cmn>; + vddaon-supply =3D <&vreg_pmu_aon_0p59>; + vddwlcx-supply =3D <&vreg_pmu_wlcx_0p8>; + vddwlmx-supply =3D <&vreg_pmu_wlmx_0p85>; + vddrfa0p8-supply =3D <&vreg_pmu_rfa_0p8>; + vddrfa1p2-supply =3D <&vreg_pmu_rfa_1p2>; + vddrfa1p7-supply =3D <&vreg_pmu_rfa_1p7>; + vddpcie0p9-supply =3D <&vreg_pmu_pcie_0p9>; + vddpcie1p8-supply =3D <&vreg_pmu_pcie_1p8>; + }; +}; + &pcie1 { status =3D "okay"; }; @@ -1303,6 +1381,14 @@ sdc2_card_det_n: sd-card-det-n-state { function =3D "gpio"; bias-pull-up; }; + + wlan_en_state: wlan-default-state { + pins =3D "gpio20"; + function =3D "gpio"; + drive-strength =3D <16>; + output-low; + bias-pull-up; + }; }; =20 &uart6 { @@ -1311,17 +1397,12 @@ &uart6 { bluetooth { compatible =3D "qcom,qca6390-bt"; =20 - pinctrl-names =3D "default"; - pinctrl-0 =3D <&bt_en_state>; - - enable-gpios =3D <&tlmm 21 GPIO_ACTIVE_HIGH>; - - vddio-supply =3D <&vreg_s4a_1p8>; - vddpmu-supply =3D <&vreg_s2f_0p95>; - vddaon-supply =3D <&vreg_s6a_0p95>; - vddrfa0p9-supply =3D <&vreg_s2f_0p95>; - vddrfa1p3-supply =3D <&vreg_s8c_1p3>; - vddrfa1p9-supply =3D <&vreg_s5a_1p9>; + vddrfacmn-supply =3D <&vreg_pmu_rfa_cmn>; + vddaon-supply =3D <&vreg_pmu_aon_0p59>; + vddbtcmx-supply =3D <&vreg_pmu_btcmx_0p85>; + vddrfa0p8-supply =3D <&vreg_pmu_rfa_0p8>; + vddrfa1p2-supply =3D <&vreg_pmu_rfa_1p2>; + vddrfa1p7-supply =3D <&vreg_pmu_rfa_1p7>; }; }; =20 diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qco= m/sm8250.dtsi index 7f2333c9d17d..06decf15a2d3 100644 --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi @@ -2203,6 +2203,16 @@ pcie0: pcie@1c00000 { dma-coherent; =20 status =3D "disabled"; + + pcieport0: pcie@0 { + device_type =3D "pci"; + reg =3D <0x0 0x0 0x0 0x0 0x0>; + #address-cells =3D <3>; + #size-cells =3D <2>; + ranges; + + bus-range =3D <0x01 0xff>; + }; }; =20 pcie0_phy: phy@1c06000 { --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wr1-f42.google.com (mail-wr1-f42.google.com [209.85.221.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FEBB14A624 for ; Mon, 25 Mar 2024 13:17:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372636; cv=none; b=iU7z5p/C1lQsyHfQyxtVrYOb2U7mTcdVfUwuEwOIwBAsnWTlW4QTRdxu1KYXwnWfUYJwfYbFBb+4H5dhh9b/nR3vnF58Y/0mG6NDJN8luEasBXojLSAC+VMjD9GY575H8kuVY87zKZi2/zBHAoY6h7+Wbz43Vko24svw620AFSQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372636; c=relaxed/simple; bh=c5P5lscsnbWC5EHjzQG5JSjk93ahAtvYSeOqjGvj/7s=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=MHO74ntXV1xox2I+myf0qGm3mlk11AEuBMW8K8c7c73poE1AbcWCzIu8M2X7FnD9gKMybRLrE4MgRUFDv7qJWb3HJHaVFHpluTmUWkRLUj7VKRq6W1aSsDnnOh35iNc4weqfAyR9CttSNY6kPGimzRfd60OBa6OxErF1XNyihBo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=t5zCXSyX; arc=none smtp.client-ip=209.85.221.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="t5zCXSyX" Received: by mail-wr1-f42.google.com with SMTP id ffacd0b85a97d-341b01dbebbso3107691f8f.0 for ; Mon, 25 Mar 2024 06:17:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372630; x=1711977430; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Y3Qk/DJ4ryR6XkF1VG+aVefQinCL6xUnkD758p4/AkE=; b=t5zCXSyXeXoyqRCnzuwJ7sWki2ClRtRSnEvkPMJz+mBBX5GTs8b5Gs/6LsCPO32r4M xvQOOLzeV60BnuKO7rzLH4h8Ue4xQ9LVLQz1vplTepcSFFNZ0NPMos9l3GcDVrpeCw43 WFHYCIIY2quw3xk2XXTJz58KhPjgXnDsr+pt/Jp+lLtNpEFptqlj7//mMFC2+UI24Wj7 JCnCUv0Fh50RetJAsPbDrT/ZPoPLjQ8kCoT3VsP5/klT1ApaEnhgiqtAavVhw5Yw2gYU ZiyHk/6lf8PedEa7uynzqFakJJLNsMNQaOKXzsMjNlj2mbGhikG/P7EGEXTiLBOonlf5 adKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372630; x=1711977430; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Y3Qk/DJ4ryR6XkF1VG+aVefQinCL6xUnkD758p4/AkE=; b=ePPmChpL4M9O0WyoH38q7CC0bt7ymKemqVf6R0WsQMe0k36BpnDZkIROcSA8WU2Oa/ YmVhdSeBXOoVJ0s/oDQeysaV0s5LaaBeem/s+4LMviD6IG7sAe8Gf1XvQ/P9bPD8zx5Z OzjqpRCWwtJxMmOlRpdl176AIPqBBFtA7tqLUhLimzvLqT85AakBZKUr2Ec7Q4KikefH z8z225iV4ZBf1Dgbrjql24a5ZZf3tTif8MxsH7hk7Tqw/fZkWAFckdYC9DHoGxbcYSe1 gJ1015l1TrdxnTvRsoksp/6yL/yy6Q7ubdXPTjGPPvX4lyGVxcNRw4vWQN4+BUMAbgkG 5txw== X-Forwarded-Encrypted: i=1; AJvYcCVfy21iNL3G12um1xlRCfO7phhTnxsFAvOpdP/fGgyrBy5ZrEzEglvKKy0YPSnYAjJaCuzLDO3sekG7GnWJ/GmJlVLRNMev1bQONPYH X-Gm-Message-State: AOJu0YyRLLgNgSOe8bjbPBLmBy3vODVWTwz6UGZoXByLHBKWeVhrqmMl VitmbAzksVOAiypPXPODgK92WFU0Esb2Ce10dJdCEpd7IZtYOUeBNgy/wcRiD8A= X-Google-Smtp-Source: AGHT+IEM3mk7LpxC1e488PCakNoryx3p0VkwguQJKJ4VUTxIHuAPloCmFrFt9hJMR52EAvFfq4y+Pg== X-Received: by 2002:a5d:604e:0:b0:33e:bfd0:335c with SMTP id j14-20020a5d604e000000b0033ebfd0335cmr6384163wrt.51.1711372630645; Mon, 25 Mar 2024 06:17:10 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:10 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 09/16] PCI: hold the rescan mutex when scanning for the first time Date: Mon, 25 Mar 2024 14:16:17 +0100 Message-Id: <20240325131624.26023-10-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski With the introduction of PCI device power control drivers that will be able to trigger the port rescan when probing, we need to hold the rescan mutex during the initial pci_host_probe() too or the two could get in each other's way. Signed-off-by: Bartosz Golaszewski --- drivers/pci/probe.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 1325fbae2f28..1802900328a0 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -3066,7 +3066,9 @@ int pci_host_probe(struct pci_host_bridge *bridge) struct pci_bus *bus, *child; int ret; =20 + pci_lock_rescan_remove(); ret =3D pci_scan_root_bus_bridge(bridge); + pci_unlock_rescan_remove(); if (ret < 0) { dev_err(bridge->dev.parent, "Scanning root bridge failed"); return ret; --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wr1-f53.google.com (mail-wr1-f53.google.com [209.85.221.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9FAD514D71A for ; Mon, 25 Mar 2024 13:17:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372637; cv=none; b=FrxybXiVeV4VQwjXbQ6ML0r/Tp8Vtl9OIZ7p7yhVM2JB3WRpx0ce4B62SDSjmtctyl8VDIK/qKhEA6EzmSgCja8ZQ9jQPD5E43K9nbclxuVV7KFoKbp2+zNETOwP1X9Wz5xjISKz2FYS8R4QzqloE00CkUS6qLPVDAwEYrIfMA4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372637; c=relaxed/simple; bh=iWQpZyVUYNR0FgdTLJWWfXolJLly1aZ0q2sdWcfiADU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=thpCrRcCfW6cN18euRkDfYZ9LxVd4UgKc4u3gapUYzK26gSlRwatRvj9LeRHfwvTrLWwGmz+44rPwiwZr06uVmRzSpbTCrKEYULNQnFJOXPeKxT3yy2Vpe6dYQPOKzchyUgKmnRELvdW/48ygtILnmDgPzpLqdwNMVnXAuwGj48= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=cUbS4nGT; arc=none smtp.client-ip=209.85.221.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="cUbS4nGT" Received: by mail-wr1-f53.google.com with SMTP id ffacd0b85a97d-33fd12a06fdso3073463f8f.1 for ; Mon, 25 Mar 2024 06:17:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372632; x=1711977432; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=VPKtETY44L+sLLhmL3uaX4nFnllKG+8eyvkbzTNtgX4=; b=cUbS4nGT0+lfRnrunIb/YNFs5x5KjLBB5tZj58rqQZ7yj/oqsNqHDCkLnoS6eAcE3p gsyW+n+o3iwItVVdhcFdeenW8F1X5Zt3O/JWzE37VCVkAFHXC8C8FnbosWgnOOP9C+01 mhG2DfaImEHlzrhbgbnliOF2Xe6PQzer30VhTpSvo9gydkqSBz3w+wqTbWeyNBwgkeqb VaocQURcHNwf9IiMy9cyCF2mMu3uwlcIcd9bFMW6hIMA32tf9SVptNUb0H6rESyOwQHK OXHdbOdnZFO0PnOCjWAH0Z2FaSVX1LU9+/EefNDKZsGMxv6Kqlm9cqyHLPM6gPRaOHty Mzhg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372632; x=1711977432; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VPKtETY44L+sLLhmL3uaX4nFnllKG+8eyvkbzTNtgX4=; b=vChF5mqLYuWaIVCTq53YiVGKsmK7k/mzRF50YOplW4MrAhMfLoocQCmEzFd79lF7Yo djJa0y/N2giBjJSUSGHqcy7iS5mq3ebhjvKD2Dpu/HyNA6GO2bbU+Z90QHxa/7eCgngQ nur7q4dgHKCAr9hvmPrG0qFzdMuG04oAbFt1At9hpCm8K1lVnfgOapeAKxPg02OMdTVp etya5ZZiaN29Qr4Mo3gO6bPGlpv8pz2+yuFlhqqKiETwL0tbkT18/hpcu8yuYMg41os5 M9MuLysaF0NL+crChfytHdUqpDKZb2Q0u5pcX4Hd6TkM9j4FWBCAI7fabbd2JPTtHbsf mc9g== X-Forwarded-Encrypted: i=1; AJvYcCUVzf3U+Sefs2e4fSDaVU6e27nBtD5zCxoqAfgHaa9wZVJisCslvkgU3sdPd5vP4KDecQlJYvY8XCv7pkhaD2yeG4abt3AtcemqQDbe X-Gm-Message-State: AOJu0YwgTYngdRo2BhP3dHss2evaev2tMv+urIjJrnt7OceKOcz8l897 50xSRSwY3f06cKrrNVkAazp0KLIkAE0MHCLTRyc/rziJVcLG5jyCZoGhaEUGwhw= X-Google-Smtp-Source: AGHT+IE8S1Cqc4BSl1gj1NJjC/8Phc5hQVnSu5kD3rjt0a7CtT1C9cZCCiVYJzGQ4RLrhpqJ51Qh5g== X-Received: by 2002:a5d:4bd1:0:b0:33d:b2d7:6264 with SMTP id l17-20020a5d4bd1000000b0033db2d76264mr4900718wrt.51.1711372632066; Mon, 25 Mar 2024 06:17:12 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:11 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 10/16] PCI/pwrctl: reuse the OF node for power controlled devices Date: Mon, 25 Mar 2024 14:16:18 +0100 Message-Id: <20240325131624.26023-11-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski With PCI power control we deal with two struct device objects bound to two different drivers but consuming the same OF node. We must not bind the pinctrl twice. To that end: before setting the OF node of the newly instantiated PCI device, check if a platform device consuming the same OF node doesn't already exist on the platform bus and - if so - mark the PCI device as reusing the OF node. Signed-off-by: Bartosz Golaszewski --- drivers/pci/of.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/pci/of.c b/drivers/pci/of.c index 51e3dd0ea5ab..b908fe1ae951 100644 --- a/drivers/pci/of.c +++ b/drivers/pci/of.c @@ -6,6 +6,7 @@ */ #define pr_fmt(fmt) "PCI: OF: " fmt =20 +#include #include #include #include @@ -13,6 +14,7 @@ #include #include #include +#include #include "pci.h" =20 #ifdef CONFIG_PCI @@ -25,16 +27,20 @@ */ int pci_set_of_node(struct pci_dev *dev) { - struct device_node *node; - if (!dev->bus->dev.of_node) return 0; =20 - node =3D of_pci_find_child_device(dev->bus->dev.of_node, dev->devfn); + struct device_node *node __free(device_node) =3D + of_pci_find_child_device(dev->bus->dev.of_node, dev->devfn); if (!node) return 0; =20 - device_set_node(&dev->dev, of_fwnode_handle(node)); + struct device *pdev __free(put_device) =3D + bus_find_device_by_of_node(&platform_bus_type, node); + if (pdev) + dev->bus->dev.of_node_reused =3D true; + + device_set_node(&dev->dev, of_fwnode_handle(no_free_ptr(node))); return 0; } =20 --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 84CC014EC44 for ; Mon, 25 Mar 2024 13:17:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372639; cv=none; b=PPZwErpVShxAAHFwskA66oNDekXzqD0IZHS9/jigNCGlWrkH24P7k7fWIP4+yDBSy1G66mtZ+kVaca1zNw6ApxwGXnf5bfgiDyxaL7w3TWjB+CcKuqSZKtntwitRv6S4FvRle5NeU3UJkMjq2pxhRxYl2PVEKP91foXoijAzu50= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372639; c=relaxed/simple; bh=ItVOWrm+zmPgwU0jiuXsWbAoFc6imFhaKj9fNGvBoW8=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=O+xN8wTI8ahJO0sxEBDa6TlVDFjeNb3y9T3inHWZdqg0a+RgpO/MomCi//oIpGSGMGJPMxbJM9NR1OSJSSSfGm4hoPW7sgUNWrUAvV499QHiitSOnm094t2rvP9bzr8VlPq2Ogo0RFu2xebNXyGwklm+TcUG85kS2FZU337bGHg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=bWcR5fp0; arc=none smtp.client-ip=209.85.221.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="bWcR5fp0" Received: by mail-wr1-f41.google.com with SMTP id ffacd0b85a97d-341b9f6fb2eso1925363f8f.2 for ; Mon, 25 Mar 2024 06:17:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372633; x=1711977433; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=cLRQo0XRS8LZDKEz8aQDPJI24t7vYnPhkxLETHKtHpE=; b=bWcR5fp0NQgNFHcaVtEWPyXRuGcrCYFsF3e5IzYI5bbaNUXdykaznXyU8VBsquqnUK sijtnJawadYMyWeDdf7RMcWkLDL/hUjhpPISDA0H48hWgQG+IOUJMkchQbmvfqFWHuCu 1TgAZ3L4Gh7aYbA01yubsxwvggwLySBp50+L1b5JQkvLc3DHWycVGKROH1GqT0SI12V8 klpS+S5e+I83W3kF7RlbHLxT3SkkoUN3ou5mL23SlAKbJljPMj1EnGu2t9XRtq5MzWcl LhgXHLlb7i5Efj8DFmaw2SIQTDHCKWYoQzzItkJmY45bvzeXkAZaFen94vbAp7A7D4/P zAJA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372633; x=1711977433; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=cLRQo0XRS8LZDKEz8aQDPJI24t7vYnPhkxLETHKtHpE=; b=tRjXUKs8iMApZaVygTFU8J8/GZkQdsR2vhCk3biYpfbjk71Myr7qiw/bKA4MmbZXSQ Q/LZoLY6NXUU7lOT5ATVOE05tRC0mMxBu+8MyiAZnGnsMfSnQUr7t15CrzxKYpQTjPAt 80kBwfCpti1nQi9FleVk0Awz4lDSeedPruZe9nuUk330cOn+nlDCzFp7EU8FiSw8ijhG ZuNNiuVnZSNms+jdmIyIQzN0AaHJRuY6zJmYj6n+tUF1oXHQhpw8nRK8xu1fX6gbS50g wbSg66eja4riQCV52x09iu9MhRdT5W1r+5Vh+5K7wmW0jgPHWzOyDYxQwzJ9I0ldB7n1 uJmQ== X-Forwarded-Encrypted: i=1; AJvYcCUnQy+BzEmFbh0bfbqm7NordTUVxu/aAEYdrsq34gHwZH8A/Dn/vbkv5Xa6ACj2dDTGFI/1iPZDCmPWX8fIbfRr4bKalbaV6xiVTAz3 X-Gm-Message-State: AOJu0Yw1ZUfNOTyJwbU9XCQUhXxPVT1E2pHoCGqOywA8ILOnQc8RxbhO Ri7m1C49GWcjveN9oNBDNoI1mF3rsYcQmewXte+1pFKnnI449lh4nkF9mB9iY5A= X-Google-Smtp-Source: AGHT+IFnBB4ou+MtybFYeGBZFDzE9OJRQ1/N/lDwetqTu850+c2PtigCOW6y2/ygvJYaO6TvQpRrZA== X-Received: by 2002:a5d:62c3:0:b0:33e:5fbf:ec4a with SMTP id o3-20020a5d62c3000000b0033e5fbfec4amr5030221wrv.64.1711372633464; Mon, 25 Mar 2024 06:17:13 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:13 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 11/16] PCI/pwrctl: create platform devices for child OF nodes of the port node Date: Mon, 25 Mar 2024 14:16:19 +0100 Message-Id: <20240325131624.26023-12-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski In preparation for introducing PCI device power control - a set of library functions that will allow powering-up of PCI devices before they're detected on the PCI bus - we need to populate the devices defined on the device-tree. We are reusing the platform bus as it provides us with all the infrastructure we need to match the pwrctl drivers against the compatibles from OF nodes. These platform devices will be probed by the driver core and bound to the PCI pwrctl drivers we'll introduce later. Signed-off-by: Bartosz Golaszewski --- drivers/pci/bus.c | 9 ++++++++- drivers/pci/remove.c | 2 ++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 826b5016a101..17ab41094c4e 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include =20 @@ -342,8 +343,14 @@ void pci_bus_add_device(struct pci_dev *dev) */ pcibios_bus_add_device(dev); pci_fixup_device(pci_fixup_final, dev); - if (pci_is_bridge(dev)) + if (pci_is_bridge(dev)) { of_pci_make_dev_node(dev); + retval =3D of_platform_populate(dev->dev.of_node, NULL, NULL, + &dev->dev); + if (retval) + pci_err(dev, "failed to populate child OF nodes (%d)\n", + retval); + } pci_create_sysfs_dev_files(dev); pci_proc_attach_device(dev); pci_bridge_d3_update(dev); diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index d749ea8250d6..fc9db2805888 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 #include #include +#include #include "pci.h" =20 static void pci_free_resources(struct pci_dev *dev) @@ -22,6 +23,7 @@ static void pci_stop_dev(struct pci_dev *dev) device_release_driver(&dev->dev); pci_proc_detach_device(dev); pci_remove_sysfs_dev_files(dev); + of_platform_depopulate(&dev->dev); of_pci_remove_node(dev); =20 pci_dev_assign_added(dev, false); --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wr1-f43.google.com (mail-wr1-f43.google.com [209.85.221.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C95A14F9DF for ; Mon, 25 Mar 2024 13:17:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372641; cv=none; b=BSY2+Uz8Nqwjp74zsPDPXn89C8BV3EE4e9Habn19Q4iHKkUFISkAiGfQn3pihjPdyzsOWshi/HxbQVzV4FatUO3OxUigDGO4T8mjM00hDjgk85dSPXvhwA+LH6mDaYlGHHybxQC9DVMtuXVcuT80YY1WuuVcvecokUy1OyD5e84= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372641; c=relaxed/simple; bh=3mCqNjHuoaUHiO0st6ivDZGmPe1iRnSnLzO7cdPvDrI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=iVgoNu16D17pmA7Ppffi6PC5E/Cc2UIXXhtciJTSixRkEvf1YqgM6Zxh9xOqbcZDRi4T1uZ3YVsAqrxdXLG9jfRQqGgFqemz794mkcA71BdqeK1FJDBqIrsDixa92wag3jfZpHtw7GR9rRDSh5fAIkgYFbWr3DqrBmz75bj+IE8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=WA5MdIJj; arc=none smtp.client-ip=209.85.221.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="WA5MdIJj" Received: by mail-wr1-f43.google.com with SMTP id ffacd0b85a97d-34100f4f9a2so2573902f8f.2 for ; Mon, 25 Mar 2024 06:17:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372635; x=1711977435; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=WoDV4sXNx4Iy0QllvGHLAhCC+BDrXl0CdEk2kmG14Eg=; b=WA5MdIJjE1sGbhi4+FSFwdqn9r1tcgS3NCLSuN5RrxvqMHL7crCSeNoael4dLyhFIc CDDTbzHsNEnIkOPCMdXsDelCCcGL02TtJ90CfpUyXrkmJLQhWO8O/dz4oULrPquTCJuB wVQla5QLBQTBk1+7Gohffp3jF+AJputjjEnxy2ZvynNtUm3pq6UmrwZTFBXYx1jWDdD4 KD/nBi3vQa/fBTV38vWcJKfFcHsdS5HW5oetmvpZCzAsHfwkwww+6m2+qPg9V2wK0K51 hXunLI+MMwRciNqrYxxEoFhxzW8UaSXWlJFLYVpSfJqZIVfIDVm6MkYIJzXFw2uUQOU9 J+LA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372635; x=1711977435; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=WoDV4sXNx4Iy0QllvGHLAhCC+BDrXl0CdEk2kmG14Eg=; b=bRRtXyKbl4HauE9sWtm1EIvgilCynb6mWZP7aDZbMrz3f+L2Te2PQdPK1UuXWzcUOY JIeOp+AC1Rd4iyCtC7XoqU1aexUzyUJQo2aFbvBgmbXcqr3kNMTewtt4UMjYpdUU2Dnv DaGDZlZYkkSBi7cVYdl1CEnWkANTwg+byb9s1zp+acbOJmSyU4qx7hfjkJ8W6qtiStrg rGIhP4H0sERX3xpaIOuzWmbwsWjGlg4Rx4XNavI4Y0v9yY47Epx87PjxC7lGkeYUp543 TarC4y2Gv4AGFDdR87aD9laaEQ4db56EeSXhol2Pbq0O6JBjfe7pUdUUS0W79yqo93gK hiFw== X-Forwarded-Encrypted: i=1; AJvYcCWtckUvlXmcigEEPp4putvaucrb0/bnzkHwKPXkAEFh0fRI/F610DTm8WlxoCFAQGFtlP9ZRRabIP2YZyysLy/zplQY1tLcRo108GrE X-Gm-Message-State: AOJu0Yz6+fvnqgzK1pPgwdqn3lNPM7B6LBQ3v0Jin99qzhBSoDaJFM7x HZhrlaHV36ZwmCuwIxZTVSP8o4qNcB4us/0kaQ+ORREoY8zQhw/zs+YP2jnOl6M= X-Google-Smtp-Source: AGHT+IE3ebNMN7m5QZrBKwSYnR5ua8Wq3FQ0JmQyUOhQd5yV7vQWw9/W7N3OtGBdKbdu598LkTtn0w== X-Received: by 2002:a05:6000:1d8f:b0:341:cf6f:e044 with SMTP id bk15-20020a0560001d8f00b00341cf6fe044mr1713355wrb.62.1711372634903; Mon, 25 Mar 2024 06:17:14 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:14 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 12/16] PCI/pwrctl: add PCI power control core code Date: Mon, 25 Mar 2024 14:16:20 +0100 Message-Id: <20240325131624.26023-13-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Some PCI devices must be powered-on before they can be detected on the bus. Introduce a simple framework reusing the existing PCI OF infrastructure. The way this works is: a DT node representing a PCI device connected to the port can be matched against its power control platform driver. If the match succeeds, the driver is responsible for powering-up the device and calling pcie_pwrctl_device_set_ready() which will trigger a PCI bus rescan as well as subscribe to PCI bus notifications. When the device is detected and created, we'll make it consume the same DT node that the platform device did. When the device is bound, we'll create a device link between it and the parent power control device. Signed-off-by: Bartosz Golaszewski --- drivers/pci/Kconfig | 1 + drivers/pci/Makefile | 1 + drivers/pci/pwrctl/Kconfig | 8 +++ drivers/pci/pwrctl/Makefile | 4 ++ drivers/pci/pwrctl/core.c | 136 ++++++++++++++++++++++++++++++++++++ include/linux/pci-pwrctl.h | 51 ++++++++++++++ 6 files changed, 201 insertions(+) create mode 100644 drivers/pci/pwrctl/Kconfig create mode 100644 drivers/pci/pwrctl/Makefile create mode 100644 drivers/pci/pwrctl/core.c create mode 100644 include/linux/pci-pwrctl.h diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index d35001589d88..aa4d1833f442 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -296,5 +296,6 @@ source "drivers/pci/hotplug/Kconfig" source "drivers/pci/controller/Kconfig" source "drivers/pci/endpoint/Kconfig" source "drivers/pci/switch/Kconfig" +source "drivers/pci/pwrctl/Kconfig" =20 endif diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 175302036890..8ddad57934a6 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -9,6 +9,7 @@ obj-$(CONFIG_PCI) +=3D access.o bus.o probe.o host-bridge.= o \ =20 obj-$(CONFIG_PCI) +=3D msi/ obj-$(CONFIG_PCI) +=3D pcie/ +obj-$(CONFIG_PCI) +=3D pwrctl/ =20 ifdef CONFIG_PCI obj-$(CONFIG_PROC_FS) +=3D proc.o diff --git a/drivers/pci/pwrctl/Kconfig b/drivers/pci/pwrctl/Kconfig new file mode 100644 index 000000000000..96195395af69 --- /dev/null +++ b/drivers/pci/pwrctl/Kconfig @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: GPL-2.0-only + +menu "PCI Power control drivers" + +config PCI_PWRCTL + tristate + +endmenu diff --git a/drivers/pci/pwrctl/Makefile b/drivers/pci/pwrctl/Makefile new file mode 100644 index 000000000000..52ae0640ef7b --- /dev/null +++ b/drivers/pci/pwrctl/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only + +obj-$(CONFIG_PCI_PWRCTL) +=3D pci-pwrctl-core.o +pci-pwrctl-core-y :=3D core.o diff --git a/drivers/pci/pwrctl/core.c b/drivers/pci/pwrctl/core.c new file mode 100644 index 000000000000..11bd19519841 --- /dev/null +++ b/drivers/pci/pwrctl/core.c @@ -0,0 +1,136 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2024 Linaro Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include + +static int pci_pwrctl_notify(struct notifier_block *nb, unsigned long acti= on, + void *data) +{ + struct pci_pwrctl *pwrctl =3D container_of(nb, struct pci_pwrctl, nb); + struct device *dev =3D data; + + if (dev_fwnode(dev) !=3D dev_fwnode(pwrctl->dev)) + return NOTIFY_DONE; + + switch (action) { + case BUS_NOTIFY_ADD_DEVICE: + /* + * We will have two struct device objects bound to two different + * drivers on different buses but consuming the same DT node. We + * must not bind the pins twice in this case but only once for + * the first device to be added. + * + * If we got here then the PCI device is the second after the + * power control platform device. Mark its OF node as reused. + */ + dev->of_node_reused =3D true; + break; + case BUS_NOTIFY_BOUND_DRIVER: + pwrctl->link =3D device_link_add(dev, pwrctl->dev, + DL_FLAG_AUTOREMOVE_CONSUMER); + if (!pwrctl->link) + dev_err(pwrctl->dev, "Failed to add device link\n"); + break; + case BUS_NOTIFY_UNBOUND_DRIVER: + if (pwrctl->link) + device_link_del(pwrctl->link); + break; + } + + return NOTIFY_DONE; +} + +/** + * pci_pwrctl_device_set_ready() - Notify the pwrctl subsystem that the PCI + * device is powered-up and ready to be detected. + * + * @pwrctl: PCI power control data + * + * Returns: + * 0 on success, negative error number on error. + * + * Note: + * This function returning 0 doesn't mean the device was detected. It mean= s, + * that the bus rescan was successfully started. The device will get bound= to + * its PCI driver asynchronously. + */ +int pci_pwrctl_device_set_ready(struct pci_pwrctl *pwrctl) +{ + int ret; + + if (!pwrctl->dev) + return -ENODEV; + + pwrctl->nb.notifier_call =3D pci_pwrctl_notify; + ret =3D bus_register_notifier(&pci_bus_type, &pwrctl->nb); + if (ret) + return ret; + + pci_lock_rescan_remove(); + pci_rescan_bus(to_pci_dev(pwrctl->dev->parent)->bus); + pci_unlock_rescan_remove(); + + return 0; +} +EXPORT_SYMBOL_GPL(pci_pwrctl_device_set_ready); + +/** + * pci_pwrctl_device_unset_ready() - Notify the pwrctl subsystem that the = PCI + * device is about to be powered-down. + * + * @pwrctl: PCI power control data + */ +void pci_pwrctl_device_unset_ready(struct pci_pwrctl *pwrctl) +{ + /* + * We don't have to delete the link here. Typically, this function + * is only called when the power control device is being detached. If + * it is being detached then the child PCI device must have already + * been unbound too or the device core wouldn't let us unbind. + */ + bus_unregister_notifier(&pci_bus_type, &pwrctl->nb); +} +EXPORT_SYMBOL_GPL(pci_pwrctl_device_unset_ready); + +static void devm_pci_pwrctl_device_unset_ready(void *data) +{ + struct pci_pwrctl *pwrctl =3D data; + + pci_pwrctl_device_set_ready(pwrctl); +} + +/** + * devm_pci_pwrctl_device_set_ready - Managed variant of + * pci_pwrctl_device_set_ready(). + * + * @pwrctl: PCI power control data + * + * Returns: + * 0 on success, negative error number on error. + */ +int devm_pci_pwrctl_device_set_ready(struct device *dev, + struct pci_pwrctl *pwrctl) +{ + int ret; + + ret =3D pci_pwrctl_device_set_ready(pwrctl); + if (ret) + return ret; + + return devm_add_action_or_reset(dev, + devm_pci_pwrctl_device_unset_ready, + pwrctl); +} +EXPORT_SYMBOL_GPL(devm_pci_pwrctl_device_set_ready); + +MODULE_AUTHOR("Bartosz Golaszewski "); +MODULE_DESCRIPTION("PCI Device Power Control core driver"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/pci-pwrctl.h b/include/linux/pci-pwrctl.h new file mode 100644 index 000000000000..ae8324ea7eeb --- /dev/null +++ b/include/linux/pci-pwrctl.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2024 Linaro Ltd. + */ + +#ifndef __PCI_PWRCTL_H__ +#define __PCI_PWRCTL_H__ + +#include + +struct device; +struct device_link; + +/* + * This is a simple framework for solving the issue of PCI devices that re= quire + * certain resources (regulators, GPIOs, clocks) to be enabled before the + * device can actually be detected on the PCI bus. + * + * The idea is to reuse the platform bus to populate OF nodes describing t= he + * PCI device and its resources, let these platform devices probe and enab= le + * relevant resources and then trigger a rescan of the PCI bus allowing fo= r the + * same device (with a second associated struct device) to be registered w= ith + * the PCI subsystem. + * + * To preserve a correct hierarchy for PCI power management and device res= et, + * we create a device link between the power control platform device (pare= nt) + * and the supplied PCI device (child). + */ + +/** + * struct pci_pwrctl - PCI device power control context. + * @dev - Address of the power controlling device. + * + * An object of this type must be allocated by the PCI power control devic= e and + * passed to the pwrctl subsystem to trigger a bus rescan and setup a devi= ce + * link with the device once it's up. + */ +struct pci_pwrctl { + struct device *dev; + + /* Private, don't use. */ + struct notifier_block nb; + struct device_link *link; +}; + +int pci_pwrctl_device_set_ready(struct pci_pwrctl *pwrctl); +void pci_pwrctl_device_unset_ready(struct pci_pwrctl *pwrctl); +int devm_pci_pwrctl_device_set_ready(struct device *dev, + struct pci_pwrctl *pwrctl); + +#endif /* __PCI_PWRCTL_H__ */ --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 093B2153820 for ; Mon, 25 Mar 2024 13:17:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372644; cv=none; b=fqWRaxmug1w53Vp4hnNTeHJjCqJcZmEcLOFEoCDCt1UlBYQpRVzLDek1jZPnIyNBN9j5V7HsFbddvPd0ghPgpIC/rir8fPcKSf0XkKK6BXjk2moAjgzgZNUEyP24bZRWkObLBbLstpyMzV2AADHrb/7u5dQ8aqcAwIbVw8N3HZQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372644; c=relaxed/simple; bh=+cNVqkmi6W7lxmV3/7AEFMz5OBr7N6KS8cpBlUaPeB4=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=aH4WNR2V4U+9Yc+uyGcpkFH+Tn40DSX709b71mK1/a6CvYOdRaS3Qcb/o6mBImL2m5hqU3/VxIn7B9Ad73t0PnlLYpIgVTjUID3bZGjRnUEUSXf3JpW17UTDiv1dlApCyfiiHz1ADWvFfyEDUCHKvo3qoIP5AxC5Yr61ye3UdaM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=BiOvvfsc; arc=none smtp.client-ip=209.85.128.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="BiOvvfsc" Received: by mail-wm1-f41.google.com with SMTP id 5b1f17b1804b1-414859830f2so8907765e9.0 for ; Mon, 25 Mar 2024 06:17:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372637; x=1711977437; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=MN9GnaH8uxS1VYnR5JtIFA1kMJZzeysQ6BZnzkGOPQk=; b=BiOvvfsccxHSqJTs9Y5KnU6E80cgCj1K67aKb+yxzWE4FqjHnjt25cK9iviwQJVNNX kDJZ9CW4oZgvM/s/AXmX7mhGurtvBsEC+IZDAHZ4L4Q+XMol/7LGPO3p3a2Wr7I8mT01 AXYm16MQIojcJzs35plnCZ51KEYFdX9yYidskkvJ+xr17ZbVCDPokiTX1v006JT/rjq1 ZI6DPgy+gD05ijQu3KG5pA+1nxs1VGaNa4ro+ex4POyL3G3FJ7XmwXlftgdShG390s+Q 4/5DO+tEBSgBcS5qv+GAIuG5SU2GJ4yU80uSHfvuIBbDZp7maeXqamTAIsBsyQYQ5x1P BSGQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372637; x=1711977437; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=MN9GnaH8uxS1VYnR5JtIFA1kMJZzeysQ6BZnzkGOPQk=; b=xGcPGoZxnfBBK6QqpB57WTWrE6G/bdo98XE7nNjqe7GTvvzRrheJtn+tWf0e1FFCyc 16pk2AjrD3rJY5zbnTqXifjwuwIF/9x8ref4fQGdbdDLXIMFiT1OYFqflJd2Ss0ikTDh z3L08DNSIkVVZ3zNi7ypOZqIzl35BfZ81sxOWLKeBh6szUdureNnZ8O80wF8NzRHnkzi RRQHMzf2JEjfbgvmaHUGd5W7KPImU3fUzDfGc4MZdhLBfumXNPjTEee/utfNtqOOD75N FFv1GSqLbCCxhEkGUNY9GYZxPZF7piw3jSWt2ieu7kK5bTKt+PKIGN1jYjI8Q/i4C/LU XUzQ== X-Forwarded-Encrypted: i=1; AJvYcCXWG1RXqoV3zZoqYszjjhzhROTgDklaT4+7ms5+PiofT9IdOcIbuDkbwfeVHxXZNdQr+Zn+AGFRjvX+QWZwnWf9lHJvAxMvxh8gknTX X-Gm-Message-State: AOJu0YzUXmspzN/a/3g0yv/KL5FwsMZQ4kHSWqz4DbWbZElm6X2gCB2C Vb3St88QUM2bTj5s6wBheoniXv75UOeoWuArLH5I0QS0DHCJrjiUT+dBJp7shpk= X-Google-Smtp-Source: AGHT+IEJgvE8K7YInvo7+XqEehCnKAltWvZJc/9MYdrK3WW7rQjld/qwwsPjzsTc946XRJyTIlj4fA== X-Received: by 2002:a05:600c:3ba3:b0:413:2966:4bfb with SMTP id n35-20020a05600c3ba300b0041329664bfbmr4468531wms.1.1711372636547; Mon, 25 Mar 2024 06:17:16 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:16 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 13/16] power: sequencing: implement the pwrseq core Date: Mon, 25 Mar 2024 14:16:21 +0100 Message-Id: <20240325131624.26023-14-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Implement the power sequencing subsystem allowing devices to share complex powering-up and down procedures. It's split into the consumer and provider parts but does not implement any new DT bindings so that the actual power sequencing is never revealed in the DT representation. Signed-off-by: Bartosz Golaszewski --- MAINTAINERS | 8 + drivers/power/Kconfig | 1 + drivers/power/Makefile | 1 + drivers/power/sequencing/Kconfig | 12 + drivers/power/sequencing/Makefile | 4 + drivers/power/sequencing/core.c | 1065 +++++++++++++++++++++++++++++ include/linux/pwrseq/consumer.h | 56 ++ include/linux/pwrseq/provider.h | 75 ++ 8 files changed, 1222 insertions(+) create mode 100644 drivers/power/sequencing/Kconfig create mode 100644 drivers/power/sequencing/Makefile create mode 100644 drivers/power/sequencing/core.c create mode 100644 include/linux/pwrseq/consumer.h create mode 100644 include/linux/pwrseq/provider.h diff --git a/MAINTAINERS b/MAINTAINERS index 51d5a64a5a36..37039fa1b721 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17631,6 +17631,14 @@ F: include/linux/pm_* F: include/linux/powercap.h F: kernel/configs/nopm.config =20 +POWER SEQUENCING +M: Bartosz Golaszewski +L: linux-pm@vger.kernel.org +S: Maintained +T: git git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git +F: drivers/power/sequencing/ +F: include/linux/pwrseq/ + POWER STATE COORDINATION INTERFACE (PSCI) M: Mark Rutland M: Lorenzo Pieralisi diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 696bf77a7042..9a8e44ca9ae4 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only source "drivers/power/reset/Kconfig" +source "drivers/power/sequencing/Kconfig" source "drivers/power/supply/Kconfig" diff --git a/drivers/power/Makefile b/drivers/power/Makefile index effbf0377f32..962a2cd30a51 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_POWER_RESET) +=3D reset/ +obj-$(CONFIG_POWER_SEQUENCING) +=3D sequencing/ obj-$(CONFIG_POWER_SUPPLY) +=3D supply/ diff --git a/drivers/power/sequencing/Kconfig b/drivers/power/sequencing/Kc= onfig new file mode 100644 index 000000000000..ba5732b1dbf8 --- /dev/null +++ b/drivers/power/sequencing/Kconfig @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0-only + +menuconfig POWER_SEQUENCING + tristate "Power Sequencing support" + help + Say Y here to enable the Power Sequencing subsystem. + + This subsystem is designed to control power to devices that share + complex resources and/or require specific power sequences to be run + during power-up. + + If unsure, say no. diff --git a/drivers/power/sequencing/Makefile b/drivers/power/sequencing/M= akefile new file mode 100644 index 000000000000..dcdf8c0c159e --- /dev/null +++ b/drivers/power/sequencing/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_POWER_SEQUENCING) +=3D pwrseq-core.o +pwrseq-core-y :=3D core.o diff --git a/drivers/power/sequencing/core.c b/drivers/power/sequencing/cor= e.c new file mode 100644 index 000000000000..f5f3dc9d2407 --- /dev/null +++ b/drivers/power/sequencing/core.c @@ -0,0 +1,1065 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2024 Linaro Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Power-sequencing framework for linux. + * + * This subsystem allows power sequence providers to register a set of tar= gets + * that consumers may request and power-up/down. + * + * Glossary: + * + * Unit - a unit is a discreet chunk of a power sequence. For instance one= unit + * may enable a set of regulators, another may enable a specific GPIO. Uni= ts + * can define dependencies in the form of other units that must be enabled + * before it itself can be. + * + * Target - a target is a set of units (composed of the "final" unit and i= ts + * dependencies) that a consumer selects by its name when requesting a han= dle + * to the power sequencer. Via the dependency system, multiple targets may + * share the same parts of a power sequence but ignore parts that are + * irrelevant. + * + * Descriptor - a handle passed by the pwrseq core to every consumer that + * serves as the entry point to the provider layer. It ensures coherence + * between different users and keeps reference counting consistent. + * + * Each provider must define a .match() callback whose role is to determine + * whether a potential consumer is in fact associated with this sequencer. + * This allows creating abstraction layers on top of regular device-tree + * resources like regulators, clocks and other nodes connected to the cons= umer + * via phandle. + */ + +static DEFINE_IDA(pwrseq_ida); + +/* + * Protects the device list on the pwrseq bus from concurrent modifications + * but allows simultaneous read-only access. + */ +static DECLARE_RWSEM(pwrseq_sem); + +/** + * struct pwrseq_unit - Private power-sequence unit data. + * @ref: Reference count for this object. When it goes to 0, the object is + * destroyed. + * @name: Name of this target. + * @list: Link to siblings on the list of all units of a single sequencer. + * @deps: List of units on which this unit depends. + * @enable: Callback running the part of the power-on sequence provided by + * this unit. + * @disable: Callback running the part of the power-off sequence provided + * by this unit. + * @enable_count: Current number of users that enabled this unit. May be t= he + * consumer of the power sequencer or other units that depe= nd + * on this one. + */ +struct pwrseq_unit { + struct kref ref; + const char *name; + struct list_head list; + struct list_head deps; + pwrseq_power_state_func enable; + pwrseq_power_state_func disable; + unsigned int enable_count; +}; + +static struct pwrseq_unit *pwrseq_unit_new(const struct pwrseq_unit_data *= data) +{ + struct pwrseq_unit *unit; + + unit =3D kzalloc(sizeof(*unit), GFP_KERNEL); + if (!unit) + return NULL; + + unit->name =3D kstrdup_const(data->name, GFP_KERNEL); + if (!unit->name) { + kfree(unit); + return NULL; + } + + kref_init(&unit->ref); + INIT_LIST_HEAD(&unit->deps); + unit->enable =3D data->enable; + unit->disable =3D data->disable; + + return unit; +} + +static struct pwrseq_unit *pwrseq_unit_incref(struct pwrseq_unit *unit) +{ + kref_get(&unit->ref); + + return unit; +} + +static void pwrseq_unit_release(struct kref *ref); + +static void pwrseq_unit_decref(struct pwrseq_unit *unit) +{ + kref_put(&unit->ref, pwrseq_unit_release); +} + +/** + * struct pwrseq_unit_dep - Wrapper around a reference to the unit structu= re + * allowing to keep it on multiple dependency lis= ts + * in different units. + * @list: Siblings on the list. + * @unit: Address of the referenced unit. + */ +struct pwrseq_unit_dep { + struct list_head list; + struct pwrseq_unit *unit; +}; + +static struct pwrseq_unit_dep *pwrseq_unit_dep_new(struct pwrseq_unit *uni= t) +{ + struct pwrseq_unit_dep *dep; + + dep =3D kzalloc(sizeof(*dep), GFP_KERNEL); + if (!dep) + return NULL; + + dep->unit =3D unit; + + return dep; +} + +static void pwrseq_unit_dep_free(struct pwrseq_unit_dep *ref) +{ + pwrseq_unit_decref(ref->unit); + kfree(ref); +} + +static void pwrseq_unit_free_deps(struct list_head *list) +{ + struct pwrseq_unit_dep *dep, *next; + + list_for_each_entry_safe(dep, next, list, list) { + list_del(&dep->list); + pwrseq_unit_dep_free(dep); + } +} + +static void pwrseq_unit_release(struct kref *ref) +{ + struct pwrseq_unit *unit =3D container_of(ref, struct pwrseq_unit, ref); + + pwrseq_unit_free_deps(&unit->deps); + list_del(&unit->list); + kfree_const(unit->name); + kfree(unit); +} + +/** + * struct pwrseq_target - Private power-sequence target data. + * @list: Siblings on the list of all targets exposed by a power sequencer. + * @name: Name of the target. + * @unit: Final unit for this target. + * @post_enable: Callback run after the target unit has been enabled, *aft= er* + * the state lock has been released. It's useful for impleme= nting + * boot-up delays without blocking other users from powering= up + * using the same power sequencer. + */ +struct pwrseq_target { + struct list_head list; + const char *name; + struct pwrseq_unit *unit; + pwrseq_power_state_func post_enable; +}; + +static struct pwrseq_target * +pwrseq_target_new(const struct pwrseq_target_data *data) +{ + struct pwrseq_target *target; + + target =3D kzalloc(sizeof(*target), GFP_KERNEL); + if (!target) + return NULL; + + target->name =3D kstrdup_const(data->name, GFP_KERNEL); + if (!target->name) { + kfree(target); + return NULL; + } + + target->post_enable =3D data->post_enable; + + return target; +} + +static void pwrseq_target_free(struct pwrseq_target *target) +{ + pwrseq_unit_decref(target->unit); + kfree_const(target->name); + kfree(target); +} + +/** + * struct pwrseq_device - Private power sequencing data. + * @dev: Device struct associated with this sequencer. + * @id: Device ID. + * @owner: Prevents removal of active power sequencing providers. + * @rw_lock: Protects the device from being unregistered while in use. + * @state_lock: Prevents multiple users running the power sequence at the = same + * time. + * @match: Power sequencer matching callback. + * @targets: List of targets exposed by this sequencer. + * @units: List of all units supported by this sequencer. + */ +struct pwrseq_device { + struct device dev; + int id; + struct module *owner; + struct rw_semaphore rw_lock; + struct mutex state_lock; + pwrseq_match_func match; + struct list_head targets; + struct list_head units; +}; + +static struct pwrseq_device *to_pwrseq_device(struct device *dev) +{ + return container_of(dev, struct pwrseq_device, dev); +} + +static struct pwrseq_device *pwrseq_device_get(struct pwrseq_device *pwrse= q) +{ + get_device(&pwrseq->dev); + + return pwrseq; +} + +static void pwrseq_device_put(struct pwrseq_device *pwrseq) +{ + put_device(&pwrseq->dev); +} + +/** + * struct pwrseq_desc - Wraps access to the pwrseq_device and ensures that= one + * user cannot break the reference counting for other= s. + * @pwrseq: Reference to the power sequencing device. + * @target: Reference to the target this descriptor allows to control. + * @powered_on: Power state set by the holder of the descriptor (not neces= sarily + * corresponding to the actual power state of the device). + */ +struct pwrseq_desc { + struct pwrseq_device *pwrseq; + struct pwrseq_target *target; + bool powered_on; +}; + +static const struct bus_type pwrseq_bus =3D { + .name =3D "pwrseq", +}; + +static void pwrseq_release(struct device *dev) +{ + struct pwrseq_device *pwrseq =3D to_pwrseq_device(dev); + struct pwrseq_target *target; + + list_for_each_entry(target, &pwrseq->targets, list) + pwrseq_target_free(target); + + mutex_destroy(&pwrseq->state_lock); + ida_free(&pwrseq_ida, pwrseq->id); + kfree(pwrseq); +} + +static const struct device_type pwrseq_device_type =3D { + .name =3D "power_sequencer", + .release =3D pwrseq_release, +}; + +static int pwrseq_unit_setup_deps(const struct pwrseq_unit_data **data, + struct list_head *dep_list, + struct list_head *unit_list, + struct radix_tree_root *processed_units) +{ + const struct pwrseq_unit_data *pos; + struct pwrseq_unit_dep *dep; + struct pwrseq_unit *unit; + int ret, i; + + for (i =3D 0; data[i]; i++) { + pos =3D data[i]; + + unit =3D radix_tree_lookup(processed_units, (unsigned long)pos); + if (unit) { + pwrseq_unit_incref(unit); + } else { + unit =3D pwrseq_unit_new(pos); + if (!unit) + return -ENOMEM; + + if (pos->deps) { + ret =3D pwrseq_unit_setup_deps(pos->deps, + &unit->deps, + unit_list, + processed_units); + if (ret) { + pwrseq_unit_decref(unit); + return ret; + } + } + + ret =3D radix_tree_insert(processed_units, + (unsigned long)pos, unit); + if (ret) { + pwrseq_unit_decref(unit); + return ret; + } + + list_add_tail(&unit->list, unit_list); + } + + dep =3D pwrseq_unit_dep_new(unit); + if (!dep) { + pwrseq_unit_decref(unit); + return -ENOMEM; + } + + list_add_tail(&dep->list, dep_list); + } + + return 0; +} + +static int pwrseq_target_setup_unit(struct pwrseq_target *target, + const struct pwrseq_unit_data *data, + struct list_head *unit_list, + struct radix_tree_root *processed_units) +{ + struct pwrseq_unit *unit; + int ret; + + unit =3D radix_tree_lookup(processed_units, (unsigned long)data); + if (unit) { + target->unit =3D pwrseq_unit_incref(unit); + return 0; + } + + unit =3D pwrseq_unit_new(data); + if (!unit) + return -ENOMEM; + + ret =3D pwrseq_unit_setup_deps(data->deps, &unit->deps, unit_list, + processed_units); + if (ret) { + pwrseq_unit_decref(unit); + return ret; + } + + ret =3D radix_tree_insert(processed_units, (unsigned long)data, unit); + if (ret) { + pwrseq_unit_decref(unit); + return ret; + } + + target->unit =3D unit; + list_add_tail(&unit->list, unit_list); + + return 0; +} + +static int pwrseq_do_setup_targets(const struct pwrseq_target_data **data, + struct pwrseq_device *pwrseq, + struct radix_tree_root *processed_units) +{ + const struct pwrseq_target_data *pos; + struct pwrseq_target *target; + int ret, i; + + for (i =3D 0; data[i]; i++) { + pos =3D data[i]; + + target =3D pwrseq_target_new(pos); + if (!target) + return -ENOMEM; + + ret =3D pwrseq_target_setup_unit(target, pos->unit, + &pwrseq->units, + processed_units); + if (ret) { + pwrseq_target_free(target); + return ret; + } + + list_add_tail(&target->list, &pwrseq->targets); + } + + return 0; +} + +static int pwrseq_setup_targets(const struct pwrseq_target_data **targets, + struct pwrseq_device *pwrseq) +{ + struct radix_tree_root processed_units; + struct radix_tree_iter iter; + void __rcu **slot; + int ret; + + INIT_RADIX_TREE(&processed_units, GFP_KERNEL); + ret =3D pwrseq_do_setup_targets(targets, pwrseq, &processed_units); + radix_tree_for_each_slot(slot, &processed_units, &iter, 0) + radix_tree_delete(&processed_units, iter.index); + + return ret; +} + +/** + * pwrseq_device_register() - Register a new power sequencer. + * @config: Configuration of the new power sequencing device. + * + * The config structure is only used during the call and can be freed after + * the function returns. The config structure *must* have the parent device + * as well as the match() callback and at least one target set. + * + * Returns: + * Returns the address of the new pwrseq device or ERR_PTR() on failure. + */ +struct pwrseq_device * +pwrseq_device_register(const struct pwrseq_config *config) +{ + struct pwrseq_device *pwrseq; + int ret; + + if (!config->parent || !config->match || !config->targets || + !config->targets[0]) + return ERR_PTR(-EINVAL); + + pwrseq =3D kzalloc(sizeof(*pwrseq), GFP_KERNEL); + if (!pwrseq) + return ERR_PTR(-ENOMEM); + + pwrseq->dev.type =3D &pwrseq_device_type; + pwrseq->dev.bus =3D &pwrseq_bus; + pwrseq->dev.parent =3D config->parent; + device_set_node(&pwrseq->dev, dev_fwnode(config->parent)); + dev_set_drvdata(&pwrseq->dev, config->drvdata); + + pwrseq->id =3D ida_alloc(&pwrseq_ida, GFP_KERNEL); + if (pwrseq->id < 0) { + kfree(pwrseq); + return ERR_PTR(pwrseq->id); + } + + /* + * From this point onwards the device's release() callback is + * responsible for freeing resources. + */ + device_initialize(&pwrseq->dev); + + ret =3D dev_set_name(&pwrseq->dev, "pwrseq.%d", pwrseq->id); + if (ret) + goto err_put_pwrseq; + + pwrseq->owner =3D config->owner ?: THIS_MODULE; + pwrseq->match =3D config->match; + + init_rwsem(&pwrseq->rw_lock); + mutex_init(&pwrseq->state_lock); + INIT_LIST_HEAD(&pwrseq->targets); + INIT_LIST_HEAD(&pwrseq->units); + + ret =3D pwrseq_setup_targets(config->targets, pwrseq); + if (ret) + goto err_put_pwrseq; + + scoped_guard(rwsem_write, &pwrseq_sem) { + ret =3D device_add(&pwrseq->dev); + if (ret) + goto err_put_pwrseq; + } + + return pwrseq; + +err_put_pwrseq: + pwrseq_device_put(pwrseq); + return ERR_PTR(ret); +} +EXPORT_SYMBOL_GPL(pwrseq_device_register); + +/** + * pwrseq_device_unregister() - Unregister the power sequencer. + * @pwrseq: Power sequencer to unregister. + */ +void pwrseq_device_unregister(struct pwrseq_device *pwrseq) +{ + struct device *dev =3D &pwrseq->dev; + struct pwrseq_target *target; + + scoped_guard(mutex, &pwrseq->state_lock) { + guard(rwsem_write)(&pwrseq->rw_lock); + + list_for_each_entry(target, &pwrseq->targets, list) + WARN_ONCE(target->unit->enable_count, + "REMOVING POWER SEQUENCER WITH ACTIVE USERS\n"); + + guard(rwsem_write)(&pwrseq_sem); + + device_del(dev); + } + + pwrseq_device_put(pwrseq); +} +EXPORT_SYMBOL_GPL(pwrseq_device_unregister); + +static void devm_pwrseq_device_unregister(void *data) +{ + struct pwrseq_device *pwrseq =3D data; + + pwrseq_device_unregister(pwrseq); +} + +/** + * devm_pwrseq_device_register() - Managed variant of pwrseq_device_regist= er(). + * @dev: Managing device. + * @config: Configuration of the new power sequencing device. + * + * Returns: + * Returns the address of the new pwrseq device or ERR_PTR() on failure. + */ +struct pwrseq_device * +devm_pwrseq_device_register(struct device *dev, + const struct pwrseq_config *config) +{ + struct pwrseq_device *pwrseq; + int ret; + + pwrseq =3D pwrseq_device_register(config); + if (IS_ERR(pwrseq)) + return pwrseq; + + ret =3D devm_add_action_or_reset(dev, devm_pwrseq_device_unregister, + pwrseq); + if (ret) + return ERR_PTR(ret); + + return pwrseq; +} +EXPORT_SYMBOL_GPL(devm_pwrseq_device_register); + +/** + * pwrseq_device_get_drvdata() - Get the driver private data associated wi= th + * this sequencer. + * @pwrseq: Power sequencer object. + * + * Returns: + * Address of the private driver data. + */ +void *pwrseq_device_get_drvdata(struct pwrseq_device *pwrseq) +{ + return dev_get_drvdata(&pwrseq->dev); +} +EXPORT_SYMBOL_GPL(pwrseq_device_get_drvdata); + +struct pwrseq_match_data { + struct pwrseq_desc *desc; + struct device *dev; + const char *target; +}; + +static int pwrseq_match_device(struct device *pwrseq_dev, void *data) +{ + struct pwrseq_device *pwrseq =3D to_pwrseq_device(pwrseq_dev); + struct pwrseq_match_data *match_data =3D data; + struct pwrseq_target *target; + int ret; + + guard(rwsem_read)(&pwrseq->rw_lock); + if (!device_is_registered(&pwrseq->dev)) + return 0; + + ret =3D pwrseq->match(pwrseq, match_data->dev); + if (ret <=3D 0) + return ret; + + /* We got the matching device, let's find the right target. */ + list_for_each_entry(target, &pwrseq->targets, list) { + if (strcmp(target->name, match_data->target)) + continue; + + match_data->desc->target =3D target; + } + + /* + * This device does not have this target. No point in deferring as it + * will not get a new target dynamically later. + */ + if (!match_data->desc->target) + return -ENOENT; + + if (!try_module_get(pwrseq->owner)) + return -EPROBE_DEFER; + + match_data->desc->pwrseq =3D pwrseq_device_get(pwrseq); + + return 1; +} + +/** + * pwrseq_get() - Get the power sequencer associated with this device. + * @dev: Device for which to get the sequencer. + * @target: Name of the target exposed by the sequencer this device wants = to + * reach. + * + * Returns: + * New power sequencer descriptor for use by the consumer driver or ERR_PT= R() + * on failure. + */ +struct pwrseq_desc *pwrseq_get(struct device *dev, const char *target) +{ + struct pwrseq_match_data match_data; + int ret; + + struct pwrseq_desc *desc __free(kfree) =3D kzalloc(sizeof(*desc), + GFP_KERNEL); + if (!desc) + return ERR_PTR(-ENOMEM); + + match_data.desc =3D desc; + match_data.dev =3D dev; + match_data.target =3D target; + + guard(rwsem_read)(&pwrseq_sem); + + ret =3D bus_for_each_dev(&pwrseq_bus, NULL, &match_data, + pwrseq_match_device); + if (ret < 0) + return ERR_PTR(ret); + if (ret =3D=3D 0) + /* No device matched. */ + return ERR_PTR(-EPROBE_DEFER); + + return no_free_ptr(desc); +} +EXPORT_SYMBOL_GPL(pwrseq_get); + +/** + * pwrseq_put() - Release the power sequencer descriptor. + * @desc: Descriptor to release. + */ +void pwrseq_put(struct pwrseq_desc *desc) +{ + struct pwrseq_device *pwrseq; + + if (!desc) + return; + + pwrseq =3D desc->pwrseq; + + if (desc->powered_on) + pwrseq_power_off(desc); + + kfree(desc); + module_put(pwrseq->owner); + pwrseq_device_put(pwrseq); +} +EXPORT_SYMBOL_GPL(pwrseq_put); + +static void devm_pwrseq_put(void *data) +{ + struct pwrseq_desc *desc =3D data; + + pwrseq_put(desc); +} + +/** + * devm_pwrseq_get() - Managed variant of pwrseq_get(). + * @dev: Device for which to get the sequencer and which also manages its + * lifetime. + * @target: Name of the target exposed by the sequencer this device wants = to + * reach. + * + * Returns: + * New power sequencer descriptor for use by the consumer driver or ERR_PT= R() + * on failure. + */ +struct pwrseq_desc *devm_pwrseq_get(struct device *dev, const char *target) +{ + struct pwrseq_desc *desc; + int ret; + + desc =3D pwrseq_get(dev, target); + if (IS_ERR(desc)) + return desc; + + ret =3D devm_add_action_or_reset(dev, devm_pwrseq_put, desc); + if (ret) + return ERR_PTR(ret); + + return desc; +} +EXPORT_SYMBOL_GPL(devm_pwrseq_get); + +static int pwrseq_unit_enable(struct pwrseq_device *pwrseq, + struct pwrseq_unit *target); +static int pwrseq_unit_disable(struct pwrseq_device *pwrseq, + struct pwrseq_unit *target); + +static int pwrseq_unit_enable_deps(struct pwrseq_device *pwrseq, + struct list_head *list) +{ + struct pwrseq_unit_dep *pos; + int ret =3D 0; + + list_for_each_entry(pos, list, list) { + ret =3D pwrseq_unit_enable(pwrseq, pos->unit); + if (ret) { + list_for_each_entry_continue_reverse(pos, list, list) + pwrseq_unit_disable(pwrseq, pos->unit); + break; + } + } + + return ret; +} + +static int pwrseq_unit_disable_deps(struct pwrseq_device *pwrseq, + struct list_head *list) +{ + struct pwrseq_unit_dep *pos; + int ret =3D 0; + + list_for_each_entry_reverse(pos, list, list) { + ret =3D pwrseq_unit_disable(pwrseq, pos->unit); + if (ret) { + list_for_each_entry_continue(pos, list, list) + pwrseq_unit_enable(pwrseq, pos->unit); + break; + } + } + + return ret; +} + +static int pwrseq_unit_enable(struct pwrseq_device *pwrseq, + struct pwrseq_unit *unit) +{ + int ret; + + if (unit->enable_count !=3D 0) { + unit->enable_count++; + return 0; + } + + ret =3D pwrseq_unit_enable_deps(pwrseq, &unit->deps); + if (ret) { + dev_err(&pwrseq->dev, + "Failed to enable dependencies before power-on for target '%s': %d\n", + unit->name, ret); + return ret; + } + + if (unit->enable) { + ret =3D unit->enable(pwrseq); + if (ret) { + dev_err(&pwrseq->dev, + "Failed to enable target '%s': %d\n", + unit->name, ret); + pwrseq_unit_disable_deps(pwrseq, &unit->deps); + return ret; + } + } + + unit->enable_count++; + + return 0; +} + +static int pwrseq_unit_disable(struct pwrseq_device *pwrseq, + struct pwrseq_unit *unit) +{ + int ret; + + if (unit->enable_count =3D=3D 0) { + WARN_ONCE(1, "Unmatched power-off for target '%s'\n", + unit->name); + return -EBUSY; + } + + if (unit->enable_count !=3D 1) { + unit->enable_count--; + return 0; + } + + if (unit->disable) { + ret =3D unit->disable(pwrseq); + if (ret) { + dev_err(&pwrseq->dev, + "Failed to disable target '%s': %d\n", + unit->name, ret); + return ret; + } + } + + ret =3D pwrseq_unit_disable_deps(pwrseq, &unit->deps); + if (ret) { + dev_err(&pwrseq->dev, + "Failed to disable dependencies after power-off for target '%s': %d\n", + unit->name, ret); + if (unit->enable) + unit->enable(pwrseq); + return ret; + } + + unit->enable_count--; + + return 0; +} + +/** + * pwrseq_power_on() - Issue a power-on request on behalf of the consumer + * device. + * @desc: Descriptor referencing the power sequencer. + * + * This function tells the power sequencer that the consumer wants to be + * powered-up. The sequencer may already have powered-up the device in whi= ch + * case the function returns 0. If the power-up sequence is already in + * progress, the function will block until it's done and return 0. If this= is + * the first request, the device will be powered up. + * + * Returns: + * 0 on success, negative error number on failure. + */ +int pwrseq_power_on(struct pwrseq_desc *desc) +{ + struct pwrseq_device *pwrseq; + struct pwrseq_target *target; + struct pwrseq_unit *unit; + int ret; + + might_sleep(); + + if (!desc || desc->powered_on) + return 0; + + pwrseq =3D desc->pwrseq; + target =3D desc->target; + unit =3D target->unit; + + guard(rwsem_read)(&pwrseq->rw_lock); + if (!device_is_registered(&pwrseq->dev)) + return -ENODEV; + + scoped_guard(mutex, &pwrseq->state_lock) { + ret =3D pwrseq_unit_enable(pwrseq, unit); + if (!ret) + desc->powered_on =3D true; + } + + if (target->post_enable) { + ret =3D target->post_enable(pwrseq); + if (ret) { + pwrseq_unit_disable(pwrseq, unit); + desc->powered_on =3D false; + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(pwrseq_power_on); + +/** + * pwrseq_power_off() - Issue a power-off request on behalf of the consumer + * device. + * @desc: Descriptor referencing the power sequencer. + * + * This undoes the effects of pwrseq_power_on(). It issues a power-off req= uest + * on behalf of the consumer and when the last remaining user does so, the + * power-down sequence will be started. If one is in progress, the function + * will block until it's complete and then return. + * + * Returns: + * 0 on success, negative error number on failure. + */ +int pwrseq_power_off(struct pwrseq_desc *desc) +{ + struct pwrseq_device *pwrseq; + struct pwrseq_unit *unit; + int ret; + + might_sleep(); + + if (!desc || !desc->powered_on) + return 0; + + pwrseq =3D desc->pwrseq; + unit =3D desc->target->unit; + + guard(rwsem_read)(&pwrseq->rw_lock); + if (!device_is_registered(&pwrseq->dev)) + return -ENODEV; + + guard(mutex)(&pwrseq->state_lock); + + ret =3D pwrseq_unit_disable(pwrseq, unit); + if (!ret) + desc->powered_on =3D false; + + return ret; +} +EXPORT_SYMBOL_GPL(pwrseq_power_off); + +#if IS_ENABLED(CONFIG_DEBUG_FS) + +struct pwrseq_debugfs_count_ctx { + struct device *dev; + loff_t index; +}; + +static int pwrseq_debugfs_seq_count(struct device *dev, void *data) +{ + struct pwrseq_debugfs_count_ctx *ctx =3D data; + + ctx->dev =3D dev; + + return ctx->index-- ? 0 : 1; +} + +static void *pwrseq_debugfs_seq_start(struct seq_file *seq, loff_t *pos) +{ + struct pwrseq_debugfs_count_ctx ctx; + + ctx.dev =3D NULL; + ctx.index =3D *pos; + + /* + * We're holding the lock for the entire printout so no need to fiddle + * with device reference count. + */ + down_read(&pwrseq_sem); + + bus_for_each_dev(&pwrseq_bus, NULL, &ctx, pwrseq_debugfs_seq_count); + if (!ctx.index) + return NULL; + + return ctx.dev; +} + +static void *pwrseq_debugfs_seq_next(struct seq_file *seq, void *data, + loff_t *pos) +{ + struct device *curr =3D data; + + ++*pos; + + struct device *next __free(put_device) =3D + bus_find_next_device(&pwrseq_bus, curr); + return next; +} + +static void pwrseq_debugfs_seq_show_target(struct seq_file *seq, + struct pwrseq_target *target) +{ + seq_printf(seq, " target: [%s] (target unit: [%s])\n", + target->name, target->unit->name); +} + +static void pwrseq_debugfs_seq_show_unit(struct seq_file *seq, + struct pwrseq_unit *unit) +{ + struct pwrseq_unit_dep *ref; + + seq_printf(seq, " unit: [%s] - enable count: %u\n", + unit->name, unit->enable_count); + + if (list_empty(&unit->deps)) + return; + + seq_puts(seq, " dependencies:\n"); + list_for_each_entry(ref, &unit->deps, list) + seq_printf(seq, " [%s]\n", ref->unit->name); +} + +static int pwrseq_debugfs_seq_show(struct seq_file *seq, void *data) +{ + struct device *dev =3D data; + struct pwrseq_device *pwrseq =3D to_pwrseq_device(dev); + struct pwrseq_target *target; + struct pwrseq_unit *unit; + + seq_printf(seq, "%s:\n", dev_name(dev)); + + seq_puts(seq, " targets:\n"); + list_for_each_entry(target, &pwrseq->targets, list) + pwrseq_debugfs_seq_show_target(seq, target); + + seq_puts(seq, " units:\n"); + list_for_each_entry(unit, &pwrseq->units, list) + pwrseq_debugfs_seq_show_unit(seq, unit); + + return 0; +} + +static void pwrseq_debugfs_seq_stop(struct seq_file *seq, void *data) +{ + up_read(&pwrseq_sem); +} + +static const struct seq_operations pwrseq_debugfs_sops =3D { + .start =3D pwrseq_debugfs_seq_start, + .next =3D pwrseq_debugfs_seq_next, + .show =3D pwrseq_debugfs_seq_show, + .stop =3D pwrseq_debugfs_seq_stop, +}; +DEFINE_SEQ_ATTRIBUTE(pwrseq_debugfs); + +static struct dentry *pwrseq_debugfs_dentry; + +#endif /* CONFIG_DEBUG_FS */ + +static int __init pwrseq_init(void) +{ + int ret; + + ret =3D bus_register(&pwrseq_bus); + if (ret) { + pr_err("Failed to register the power sequencer bus\n"); + return ret; + } + +#if IS_ENABLED(CONFIG_DEBUG_FS) + pwrseq_debugfs_dentry =3D debugfs_create_file("pwrseq", 0444, NULL, NULL, + &pwrseq_debugfs_fops); +#endif /* CONFIG_DEBUG_FS */ + + return 0; +} +subsys_initcall(pwrseq_init); + +static void __exit pwrseq_exit(void) +{ +#if IS_ENABLED(CONFIG_DEBUG_FS) + debugfs_remove_recursive(pwrseq_debugfs_dentry); +#endif /* CONFIG_DEBUG_FS */ + + bus_unregister(&pwrseq_bus); +} +module_exit(pwrseq_exit); + +MODULE_AUTHOR("Bartosz Golaszewski "); +MODULE_DESCRIPTION("Power Sequencing subsystem core"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/pwrseq/consumer.h b/include/linux/pwrseq/consume= r.h new file mode 100644 index 000000000000..7d583b4f266e --- /dev/null +++ b/include/linux/pwrseq/consumer.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2024 Linaro Ltd. + */ + +#ifndef __POWER_SEQUENCING_CONSUMER_H__ +#define __POWER_SEQUENCING_CONSUMER_H__ + +#include + +struct device; +struct pwrseq_desc; + +#if IS_ENABLED(CONFIG_POWER_SEQUENCING) + +struct pwrseq_desc * __must_check +pwrseq_get(struct device *dev, const char *target); +void pwrseq_put(struct pwrseq_desc *desc); + +struct pwrseq_desc * __must_check +devm_pwrseq_get(struct device *dev, const char *target); + +int pwrseq_power_on(struct pwrseq_desc *desc); +int pwrseq_power_off(struct pwrseq_desc *desc); + +#else /* CONFIG_POWER_SEQUENCING */ + +static inline struct pwrseq_desc * __must_check +pwrseq_get(struct device *dev, const char *target) +{ + return ERR_PTR(-ENOSYS); +} + +static inline void pwrseq_put(struct pwrseq_desc *desc) +{ +} + +static inline struct pwrseq_desc * __must_check +devm_pwrseq_get(struct device *dev, const char *target) +{ + return ERR_PTR(-ENOSYS); +} + +static inline int pwrseq_power_on(struct pwrseq_desc *desc) +{ + return -ENOSYS; +} + +static inline int pwrseq_power_off(struct pwrseq_desc *desc) +{ + return -ENOSYS; +} + +#endif /* CONFIG_POWER_SEQUENCING */ + +#endif /* __POWER_SEQUENCING_CONSUMER_H__ */ diff --git a/include/linux/pwrseq/provider.h b/include/linux/pwrseq/provide= r.h new file mode 100644 index 000000000000..e627ed2f4d91 --- /dev/null +++ b/include/linux/pwrseq/provider.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2024 Linaro Ltd. + */ + +#ifndef __POWER_SEQUENCING_PROVIDER_H__ +#define __POWER_SEQUENCING_PROVIDER_H__ + +struct device; +struct module; +struct pwrseq_device; + +typedef int (*pwrseq_power_state_func)(struct pwrseq_device *); +typedef int (*pwrseq_match_func)(struct pwrseq_device *, struct device *); + +/** + * struct pwrseq_unit_data - Configuration of a single power sequencing + * unit. + * @name: Name of the unit. + * @deps: Units that must be enabled before this one and disabled after it + * in the order they come in this array. + * @enable: Callback running the part of the power-on sequence provided by + * this unit. + * @disable: Callback running the part of the power-off sequence provided + * by this unit. + */ +struct pwrseq_unit_data { + const char *name; + const struct pwrseq_unit_data **deps; + pwrseq_power_state_func enable; + pwrseq_power_state_func disable; +}; + +/** + * struct pwrseq_target_data - Configuration of a power sequencing target. + * @name: Name of the target. + * @unit: Final unit that this target must reach in order to be considered + * enabled. + * @post_enable: Callback run after the target unit has been enabled, *aft= er* + * the state lock has been released. It's useful for impleme= nting + * boot-up delays without blocking other users from powering= up + * using the same power sequencer. + */ +struct pwrseq_target_data { + const char *name; + const struct pwrseq_unit_data *unit; + pwrseq_power_state_func post_enable; +}; + +/** + * struct pwrseq_config - Configuration used for registering a new provide= r. + * @parent: Parent device for the sequencer. Must be set. + * @owner: Module providing this device. + * @drvdata: Private driver data. + * @match: Provider callback used to match the consumer device to the sequ= encer. + * @targets: Array of targets for this power sequencer. Must be NULL-termi= nated. + */ +struct pwrseq_config { + struct device *parent; + struct module *owner; + void *drvdata; + pwrseq_match_func match; + const struct pwrseq_target_data **targets; +}; + +struct pwrseq_device * +pwrseq_device_register(const struct pwrseq_config *config); +void pwrseq_device_unregister(struct pwrseq_device *pwrseq); +struct pwrseq_device * +devm_pwrseq_device_register(struct device *dev, + const struct pwrseq_config *config); + +void *pwrseq_device_get_drvdata(struct pwrseq_device *pwrseq); + +#endif /* __POWER_SEQUENCING_PROVIDER_H__ */ --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-lf1-f43.google.com (mail-lf1-f43.google.com [209.85.167.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BD054144D1A for ; Mon, 25 Mar 2024 13:17:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372644; cv=none; b=VS0CkoF1cWgZawDHvxABpEwtECRfjspSMYdcSAk0YfxtByX6SCwR0TG+8GbR4SDMwWjNw8tzEXOREuGygbWIX+2oraec7VOAYXtc98YQ1la/oz9G7T0Pw17DXtX/FyS3+PXTsJABVjoU4VKxu74V0iSIeyyw3PU0CQBeq9oG3rQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372644; c=relaxed/simple; bh=mT8EtEqSsc1usaT07FcKi55aNWb5O03fQyO7Z6PPFnQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=GpMQ7PqQJEHOs+PRYVkIjJeN0Ge9hKj06zscAqnykkFfaiNR2YNy1UuZ6RNTBEax+RRyzdYQ2sTzXp88ej901c8bjSW6b2kU+gOmgzFDYw146zuwlMtiAp0crnYjbPzj1SVE6imOyZvStZ2CAHIAMcKncQoW3U6/GIFxlfwZNTI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=t/V+AkyA; arc=none smtp.client-ip=209.85.167.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="t/V+AkyA" Received: by mail-lf1-f43.google.com with SMTP id 2adb3069b0e04-513d717269fso5407310e87.0 for ; Mon, 25 Mar 2024 06:17:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372638; x=1711977438; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=C9nJwjHWSN5VnvThb8/gXwDKA0GcEMuTEtkVY9Mb9jo=; b=t/V+AkyAsWKIHh1UGrvgswH5i2753TMZbmIZQMdTHipkbMJQItcqSs6htI8opJWVl3 O+rPPoAQTNr1OypcXZRi7IEnShbFfUrc7OK3/6HxUq+2bLYJgp/dMNgB38PNM35dxpLt c22+yb7Dw+L5P/7UcFApwQ4mGFSbPF/5hYNtNQKw/2oRsodlUtum0P0tannugYRsgwN8 38fIqB5RpgRa4/bhiE8cExIoQ3ag2ij7wk3v/8Qs56z+bil/1pNzCzGVm3oC+vfeu/kN L5dS7ZgbGIuAp/5TPJbv7MKnE1TuS+n5Aiq+V02tP0LrGOU2v6jKe0nYipWwIXpRlKLv 0gkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372638; x=1711977438; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=C9nJwjHWSN5VnvThb8/gXwDKA0GcEMuTEtkVY9Mb9jo=; b=Yn3IIhJP8KSRpxFNW+nergn75bxeVrF7goxLjP3c452dFofIhDjE/sIe6wnjGUCs6F HteydbcG3KGZ+4FUIK9IaVyQ17Et3JYVzn+HDUBYYRciL8xTsLr2QunNux+9TEnhQUiX r+CAZNMvwiU8bJf/uaCtHwZ1e6juPsalqNvkgVyStt/LpXIh6jt0uimlP5lWPipPr8zu V8u0Bo2gxl+4Lqr8DMpJ8oyuYyCAZBvZRBRpR0cWCff4bj+vcFfrEibgUmDgGahuZiOx JFCZ/RdWIDWylgOhyfibqnrDQatO1XRbBAxWTraR8G0Ze9NkzxK8GxOc/Ei9KocRHanh PJ2w== X-Forwarded-Encrypted: i=1; AJvYcCXaOBN2Th0UZYjkp3k43NpviKwpJCP2S+vnKAeOZlVNursmyR5Xu01Hzlp2SKHYdzHiAtM25q5QRgjTJMYmI9oPazzr64tNO9Kf/xBr X-Gm-Message-State: AOJu0Yy8c9fIH2bCbwuf1Vt6Pjk+lONjMNDVWcVc8+WYqOLUcT17tPWt XKdYWNAfJ303g+WSLiePwuh/6QHitEJqldVT1Tf8GFDIFHtJS9/K5o1JMCM6YhI= X-Google-Smtp-Source: AGHT+IE2+eSoT09uhRy315sGD8UVX1+1gdFHiYvCh4DKZquDz+GGRHOB4ohN7DRUEE6RC8yf6HFK6A== X-Received: by 2002:a05:6512:3a8c:b0:515:ab42:c25f with SMTP id q12-20020a0565123a8c00b00515ab42c25fmr2786468lfu.23.1711372638058; Mon, 25 Mar 2024 06:17:18 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:17 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 14/16] power: pwrseq: add a driver for the PMU module on the QCom WCN chipsets Date: Mon, 25 Mar 2024 14:16:22 +0100 Message-Id: <20240325131624.26023-15-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski This adds the power sequencing driver for the PMU modules present on the Qualcomm WCN Bluetooth and Wifi chipsets. It uses the pwrseq subsystem and knows how to match the sequencer to the consumer device by verifying the relevant properties and DT layout. Signed-off-by: Bartosz Golaszewski --- drivers/power/sequencing/Kconfig | 16 + drivers/power/sequencing/Makefile | 2 + drivers/power/sequencing/pwrseq-qcom-wcn.c | 336 +++++++++++++++++++++ 3 files changed, 354 insertions(+) create mode 100644 drivers/power/sequencing/pwrseq-qcom-wcn.c diff --git a/drivers/power/sequencing/Kconfig b/drivers/power/sequencing/Kc= onfig index ba5732b1dbf8..468d58fac07d 100644 --- a/drivers/power/sequencing/Kconfig +++ b/drivers/power/sequencing/Kconfig @@ -10,3 +10,19 @@ menuconfig POWER_SEQUENCING during power-up. =20 If unsure, say no. + +if POWER_SEQUENCING + +config POWER_SEQUENCING_QCOM_WCN + tristate "Qualcomm WCN family PMU driver" + default m if ARCH_QCOM + help + Say U here to enable the power sequencing driver for Qualcomm + WCN Bluetooth/WLAN chipsets. + + Typically, a package from the Qualcomm WCN family contains the BT + and WLAN modules whose power is controlled by the PMU module. As the + former two share the power-up sequence which is executed by the PMU, + this driver is needed for correct power control. + +endif diff --git a/drivers/power/sequencing/Makefile b/drivers/power/sequencing/M= akefile index dcdf8c0c159e..2eec2df7912d 100644 --- a/drivers/power/sequencing/Makefile +++ b/drivers/power/sequencing/Makefile @@ -2,3 +2,5 @@ =20 obj-$(CONFIG_POWER_SEQUENCING) +=3D pwrseq-core.o pwrseq-core-y :=3D core.o + +obj-$(CONFIG_POWER_SEQUENCING_QCOM_WCN) +=3D pwrseq-qcom-wcn.o diff --git a/drivers/power/sequencing/pwrseq-qcom-wcn.c b/drivers/power/seq= uencing/pwrseq-qcom-wcn.c new file mode 100644 index 000000000000..380305227b3f --- /dev/null +++ b/drivers/power/sequencing/pwrseq-qcom-wcn.c @@ -0,0 +1,336 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2024 Linaro Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct pwrseq_qcom_wcn_pdata { + const char *const *vregs; + size_t num_vregs; + unsigned int pwup_delay_msec; + unsigned int gpio_enable_delay; +}; + +struct pwrseq_qcom_wcn_ctx { + struct pwrseq_device *pwrseq; + struct device_node *of_node; + const struct pwrseq_qcom_wcn_pdata *pdata; + struct regulator_bulk_data *regs; + struct gpio_desc *bt_gpio; + struct gpio_desc *wlan_gpio; + struct clk *clk; + unsigned long last_gpio_enable; +}; + +static void pwrseq_qcom_wcn_ensure_gpio_delay(struct pwrseq_qcom_wcn_ctx *= ctx) +{ + unsigned long diff_jiffies; + unsigned int diff_msecs; + + if (!ctx->pdata->gpio_enable_delay) + return; + + diff_jiffies =3D jiffies - ctx->last_gpio_enable; + diff_msecs =3D jiffies_to_msecs(diff_jiffies); + + if (diff_msecs < ctx->pdata->gpio_enable_delay) + msleep(ctx->pdata->gpio_enable_delay - diff_msecs); +} + +static int pwrseq_qcom_wcn_vregs_enable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + return regulator_bulk_enable(ctx->pdata->num_vregs, ctx->regs); +} + +static int pwrseq_qcom_wcn_vregs_disable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + return regulator_bulk_disable(ctx->pdata->num_vregs, ctx->regs); +} + +static const struct pwrseq_unit_data pwrseq_qcom_wcn_vregs_unit_data =3D { + .name =3D "regulators-enable", + .enable =3D pwrseq_qcom_wcn_vregs_enable, + .disable =3D pwrseq_qcom_wcn_vregs_disable, +}; + +static int pwrseq_qcom_wcn_clk_enable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + return clk_prepare_enable(ctx->clk); +} + +static int pwrseq_qcom_wcn_clk_disable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + clk_disable_unprepare(ctx->clk); + + return 0; +} + +static const struct pwrseq_unit_data pwrseq_qcom_wcn_clk_unit_data =3D { + .name =3D "clock-enable", + .enable =3D pwrseq_qcom_wcn_clk_enable, + .disable =3D pwrseq_qcom_wcn_clk_disable, +}; + +static const struct pwrseq_unit_data *pwrseq_qcom_wcn_unit_deps[] =3D { + &pwrseq_qcom_wcn_vregs_unit_data, + &pwrseq_qcom_wcn_clk_unit_data, + NULL +}; + +static int pwrseq_qcom_wcn_bt_enable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + pwrseq_qcom_wcn_ensure_gpio_delay(ctx); + gpiod_set_value_cansleep(ctx->bt_gpio, 1); + ctx->last_gpio_enable =3D jiffies; + + return 0; +} + +static int pwrseq_qcom_wcn_bt_disable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + gpiod_set_value_cansleep(ctx->bt_gpio, 0); + + return 0; +} + +static const struct pwrseq_unit_data pwrseq_qcom_wcn_bt_unit_data =3D { + .name =3D "bluetooth-enable", + .deps =3D pwrseq_qcom_wcn_unit_deps, + .enable =3D pwrseq_qcom_wcn_bt_enable, + .disable =3D pwrseq_qcom_wcn_bt_disable, +}; + +static int pwrseq_qcom_wcn_wlan_enable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + pwrseq_qcom_wcn_ensure_gpio_delay(ctx); + gpiod_set_value_cansleep(ctx->wlan_gpio, 1); + ctx->last_gpio_enable =3D jiffies; + + return 0; +} + +static int pwrseq_qcom_wcn_wlan_disable(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + gpiod_set_value_cansleep(ctx->wlan_gpio, 0); + + return 0; +} + +static const struct pwrseq_unit_data pwrseq_qcom_wcn_wlan_unit_data =3D { + .name =3D "wlan-enable", + .deps =3D pwrseq_qcom_wcn_unit_deps, + .enable =3D pwrseq_qcom_wcn_wlan_enable, + .disable =3D pwrseq_qcom_wcn_wlan_disable, +}; + +static int pwrseq_qcom_wcn_pwup_delay(struct pwrseq_device *pwrseq) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + + if (ctx->pdata->pwup_delay_msec) + msleep(ctx->pdata->pwup_delay_msec); + + return 0; +} + +static const struct pwrseq_target_data pwrseq_qcom_wcn_bt_target_data =3D { + .name =3D "bluetooth", + .unit =3D &pwrseq_qcom_wcn_bt_unit_data, + .post_enable =3D pwrseq_qcom_wcn_pwup_delay, +}; + +static const struct pwrseq_target_data pwrseq_qcom_wcn_wlan_target_data = =3D { + .name =3D "wlan", + .unit =3D &pwrseq_qcom_wcn_wlan_unit_data, + .post_enable =3D pwrseq_qcom_wcn_pwup_delay, +}; + +static const struct pwrseq_target_data *pwrseq_qcom_wcn_targets[] =3D { + &pwrseq_qcom_wcn_bt_target_data, + &pwrseq_qcom_wcn_wlan_target_data, + NULL +}; + +static const char *const pwrseq_qca6390_vregs[] =3D { + "vddio", + "vddaon", + "vddpmu", + "vddrfa0p95", + "vddrfa1p3", + "vddrfa1p9", + "vddpcie1p3", + "vddpcie1p9", +}; + +static const struct pwrseq_qcom_wcn_pdata pwrseq_qca6390_of_data =3D { + .vregs =3D pwrseq_qca6390_vregs, + .num_vregs =3D ARRAY_SIZE(pwrseq_qca6390_vregs), + .pwup_delay_msec =3D 60, + .gpio_enable_delay =3D 100, +}; + +static const char *const pwrseq_wcn7850_vregs[] =3D { + "vdd", + "vddio", + "vddio1p2", + "vddaon", + "vdddig", + "vddrfa1p2", + "vddrfa1p8", +}; + +static const struct pwrseq_qcom_wcn_pdata pwrseq_wcn7850_of_data =3D { + .vregs =3D pwrseq_wcn7850_vregs, + .num_vregs =3D ARRAY_SIZE(pwrseq_wcn7850_vregs), + .pwup_delay_msec =3D 50, +}; + +static int pwrseq_qcom_wcn_match(struct pwrseq_device *pwrseq, + struct device *dev) +{ + struct pwrseq_qcom_wcn_ctx *ctx =3D pwrseq_device_get_drvdata(pwrseq); + struct device_node *dev_node =3D dev->of_node; + + /* + * The PMU supplies power to the Bluetooth and WLAN modules. both + * consume the PMU AON output so check the presence of the + * 'vddaon-supply' property and whether it leads us to the right + * device. + */ + if (!of_property_present(dev_node, "vddaon-supply")) + return 0; + + struct device_node *reg_node __free(device_node) =3D + of_parse_phandle(dev_node, "vddaon-supply", 0); + if (!reg_node) + return 0; + + /* + * `reg_node` is the PMU AON regulator, its parent is the `regulators` + * node and finally its grandparent is the PMU device node that we're + * looking for. + */ + if (!reg_node->parent || !reg_node->parent->parent || + reg_node->parent->parent !=3D ctx->of_node) + return 0; + + return 1; +} + +static int pwrseq_qcom_wcn_probe(struct platform_device *pdev) +{ + struct device *dev =3D &pdev->dev; + struct pwrseq_qcom_wcn_ctx *ctx; + struct pwrseq_config config; + int i, ret; + + ctx =3D devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->of_node =3D dev->of_node; + + ctx->pdata =3D of_device_get_match_data(dev); + if (!ctx->pdata) + return dev_err_probe(dev, -ENODEV, + "Failed to obtain platform data\n"); + + ctx->regs =3D devm_kcalloc(dev, ctx->pdata->num_vregs, + sizeof(*ctx->regs), GFP_KERNEL); + if (!ctx->regs) + return -ENOMEM; + + for (i =3D 0; i < ctx->pdata->num_vregs; i++) + ctx->regs[i].supply =3D ctx->pdata->vregs[i]; + + ret =3D devm_regulator_bulk_get(dev, ctx->pdata->num_vregs, ctx->regs); + if (ret < 0) + return dev_err_probe(dev, PTR_ERR(ctx->regs), + "Failed to get all regulators\n"); + + ctx->bt_gpio =3D devm_gpiod_get_optional(dev, "bt-enable", GPIOD_OUT_LOW); + if (IS_ERR(ctx->bt_gpio)) + return dev_err_probe(dev, PTR_ERR(ctx->bt_gpio), + "Failed to get the Bluetooth enable GPIO\n"); + + ctx->wlan_gpio =3D devm_gpiod_get_optional(dev, "wlan-enable", + GPIOD_OUT_LOW); + if (IS_ERR(ctx->wlan_gpio)) + return dev_err_probe(dev, PTR_ERR(ctx->wlan_gpio), + "Failed to get the WLAN enable GPIO\n"); + + ctx->clk =3D devm_clk_get_optional(dev, NULL); + if (IS_ERR(ctx->clk)) + return dev_err_probe(dev, PTR_ERR(ctx->clk), + "Failed to get the reference clock\n"); + + memset(&config, 0, sizeof(config)); + + config.parent =3D dev; + config.owner =3D THIS_MODULE; + config.drvdata =3D ctx; + config.match =3D pwrseq_qcom_wcn_match; + config.targets =3D pwrseq_qcom_wcn_targets; + + ctx->pwrseq =3D devm_pwrseq_device_register(dev, &config); + if (IS_ERR(ctx->pwrseq)) + return dev_err_probe(dev, PTR_ERR(ctx->pwrseq), + "Failed to register the power sequencer\n"); + + return 0; +} + +static const struct of_device_id pwrseq_qcom_wcn_of_match[] =3D { + { + .compatible =3D "qcom,qca6390-pmu", + .data =3D &pwrseq_qca6390_of_data, + }, + { + .compatible =3D "qcom,wcn7850-pmu", + .data =3D &pwrseq_wcn7850_of_data, + }, + { } +}; +MODULE_DEVICE_TABLE(of, pwrseq_qcom_wcn_of_match); + +static struct platform_driver pwrseq_qcom_wcn_driver =3D { + .driver =3D { + .name =3D "pwrseq-qcom_wcn", + .of_match_table =3D pwrseq_qcom_wcn_of_match, + }, + .probe =3D pwrseq_qcom_wcn_probe, +}; +module_platform_driver(pwrseq_qcom_wcn_driver); + +MODULE_AUTHOR("Bartosz Golaszewski "); +MODULE_DESCRIPTION("Qualcomm WCN PMU power sequencing driver"); +MODULE_LICENSE("GPL"); --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wm1-f52.google.com (mail-wm1-f52.google.com [209.85.128.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 414D4157A72 for ; Mon, 25 Mar 2024 13:17:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372646; cv=none; b=Mh+mRf9eYOetfALeetyG0TJjK7LZTSNteNOGLX8E59NAUikwMEm6FNuifRb6PbMekO9q1lP6OqfkzoAIwDRiXmvonV7RpEPjKSYwThre9NPXWL+T4y/K6BAnV+vdJyJeRBZR5Wi2SnCUAl43d90pRQQbvIamOPaPVY449A04Tx0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372646; c=relaxed/simple; bh=Zu9qHogsjwwvS76RuRykV3Cyl3hZFd1eYZO5KYwA5Tk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=tLhkW4BWzjjBLxCGaf67ET39AMyCdPtt129TVQwK2Z7nuBD2PS2cxbVWCoLTwNm4hC4WhpIoHk9DUVRGC8nRIb4zeXXxNJf0NNTVLMaFTYNZChudACbkhHVyPEMjZQvyMrQaYLntZVnpUzHR9h+zU7br3F8D3vU+b098VWNDebg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=TCWRUUf9; arc=none smtp.client-ip=209.85.128.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="TCWRUUf9" Received: by mail-wm1-f52.google.com with SMTP id 5b1f17b1804b1-4147c4862caso25397235e9.0 for ; Mon, 25 Mar 2024 06:17:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372639; x=1711977439; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=z6NUiX8vyJKElOCOKE+vXKfTmxYyyFPuN3p6ttUZMX0=; b=TCWRUUf91blGzGPBYGy/yjX5PRskP+/zJqpZTQMfiy7HNicgd7NPsBdnKxu50in0xM 7VBEitn9ksoyhXgNWJPWUdwp+xQoJes2pXwWyYkmyLmj8CgZBvcY3ay/dkewrGtVgz/2 fAy2RnnJEEQHS3UdXD1lP/g+0LloI3vCehN/721VVU40zHS/Ix7pJlGH43N2VY4s3mHf fPo6ZFp9r/xmlPNStVvIe9ojVHsc78VUmuFSDd8Y41VoOrV/UPM+Pynh1mkZqGI5U2tH +1B2DiQdlR2wz8d/vU+p+QRsUrSREIIvWhTOk2LDoMwJ8Psa7uSHDlShbUKHXSZzqtvq Ql/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372639; x=1711977439; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=z6NUiX8vyJKElOCOKE+vXKfTmxYyyFPuN3p6ttUZMX0=; b=TNT1vHpuWqpAbScfkeJ1rMHSfRnO0X6JNkh1QFHdh5Mr8cbDar5TDuvcLqZllAypXt DuUQ+m9WWuWoqibLn5SDJT2Mfshivvnhn89X604+a7TvMPOGBBucoduaZKB6nNg5xtZm 5t79t7z/IkCxbbmEtZ/nCbBu5IikdyJcqAkPziiSawPkuBHp32uaVGBv0f3KU65Tfa27 FeRI3whyMEWUi5YWYZ4bgakghFvtWE2IdlgrMB+ucOI+RHzUvtWW1LpNhEANa0G9+HUd KwUUo64sXS+08taA+Vor2Dk7I7/zIoNauenu5fsotcWJWMwpqM9oo7/IAyQjciDVxge8 MlIA== X-Forwarded-Encrypted: i=1; AJvYcCWeMU6oWhkYFMkCohCF9OhTijjE0sJ79aQa2ecZWgl5JpeGSElp9hZvvtTuyNOQuEPdlVmAymFDSDvByiVB2vbzeKBaD7bY/wsejPPV X-Gm-Message-State: AOJu0Yw63Gpgmjsm1ZawO5swGgWnpwTkSuwfGfP23mOIEntoVSVAqL0W zwGDMbMncEdeHnNinxqpxuFA/Sqx6iM8wAAGCWf2Z3GosWR5i/D57TVyt2Hd2d0= X-Google-Smtp-Source: AGHT+IGplibW2rPlAAjnQL9sObEnEZwVK6gcoiaHcEbAGyGcbuZT+b3GNUpQhb2YKD5liRnzXnHTNw== X-Received: by 2002:a05:600c:3113:b0:413:ee55:8bba with SMTP id g19-20020a05600c311300b00413ee558bbamr6671288wmo.4.1711372639502; Mon, 25 Mar 2024 06:17:19 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:19 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 15/16] Bluetooth: qca: use the power sequencer for QCA6390 Date: Mon, 25 Mar 2024 14:16:23 +0100 Message-Id: <20240325131624.26023-16-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Use the pwrseq subsystem's consumer API to run the power-up sequence for the Bluetooth module of the QCA6390 package. Signed-off-by: Bartosz Golaszewski --- drivers/bluetooth/hci_qca.c | 74 +++++++++++++++++++++++++++++-------- 1 file changed, 59 insertions(+), 15 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 8a60ad7acd70..d31dcea650c1 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include @@ -215,6 +216,7 @@ struct qca_power { struct regulator_bulk_data *vreg_bulk; int num_vregs; bool vregs_on; + struct pwrseq_desc *pwrseq; }; =20 struct qca_serdev { @@ -1682,6 +1684,27 @@ static bool qca_wakeup(struct hci_dev *hdev) return wakeup; } =20 +static int qca_port_reopen(struct hci_uart *hu) +{ + int ret; + + /* Now the device is in ready state to communicate with host. + * To sync host with device we need to reopen port. + * Without this, we will have RTS and CTS synchronization + * issues. + */ + serdev_device_close(hu->serdev); + ret =3D serdev_device_open(hu->serdev); + if (ret) { + bt_dev_err(hu->hdev, "failed to open port"); + return ret; + } + + hci_uart_set_flow_control(hu, false); + + return 0; +} + static int qca_regulator_init(struct hci_uart *hu) { enum qca_btsoc_type soc_type =3D qca_soc_type(hu); @@ -1750,21 +1773,7 @@ static int qca_regulator_init(struct hci_uart *hu) break; } =20 - /* Now the device is in ready state to communicate with host. - * To sync host with device we need to reopen port. - * Without this, we will have RTS and CTS synchronization - * issues. - */ - serdev_device_close(hu->serdev); - ret =3D serdev_device_open(hu->serdev); - if (ret) { - bt_dev_err(hu->hdev, "failed to open port"); - return ret; - } - - hci_uart_set_flow_control(hu, false); - - return 0; + return qca_port_reopen(hu); } =20 static int qca_power_on(struct hci_dev *hdev) @@ -1792,6 +1801,17 @@ static int qca_power_on(struct hci_dev *hdev) ret =3D qca_regulator_init(hu); break; =20 + case QCA_QCA6390: + qcadev =3D serdev_device_get_drvdata(hu->serdev); + ret =3D pwrseq_power_on(qcadev->bt_power->pwrseq); + if (ret) + return ret; + + ret =3D qca_port_reopen(hu); + if (ret) + return ret; + break; + default: qcadev =3D serdev_device_get_drvdata(hu->serdev); if (qcadev->bt_en) { @@ -2170,6 +2190,10 @@ static void qca_power_shutdown(struct hci_uart *hu) } break; =20 + case QCA_QCA6390: + pwrseq_power_off(qcadev->bt_power->pwrseq); + break; + default: gpiod_set_value_cansleep(qcadev->bt_en, 0); } @@ -2308,12 +2332,25 @@ static int qca_serdev_probe(struct serdev_device *s= erdev) case QCA_WCN6750: case QCA_WCN6855: case QCA_WCN7850: + case QCA_QCA6390: qcadev->bt_power =3D devm_kzalloc(&serdev->dev, sizeof(struct qca_power), GFP_KERNEL); if (!qcadev->bt_power) return -ENOMEM; + break; + default: + break; + } =20 + switch (qcadev->btsoc_type) { + case QCA_WCN3988: + case QCA_WCN3990: + case QCA_WCN3991: + case QCA_WCN3998: + case QCA_WCN6750: + case QCA_WCN6855: + case QCA_WCN7850: qcadev->bt_power->dev =3D &serdev->dev; err =3D qca_init_regulators(qcadev->bt_power, data->vregs, data->num_vregs); @@ -2354,6 +2391,13 @@ static int qca_serdev_probe(struct serdev_device *se= rdev) } break; =20 + case QCA_QCA6390: + qcadev->bt_power->pwrseq =3D devm_pwrseq_get(&serdev->dev, + "bluetooth"); + if (IS_ERR(qcadev->bt_power->pwrseq)) + return PTR_ERR(qcadev->bt_power->pwrseq); + fallthrough; + default: qcadev->bt_en =3D devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW); --=20 2.40.1 From nobody Tue Feb 10 10:53:27 2026 Received: from mail-wm1-f50.google.com (mail-wm1-f50.google.com [209.85.128.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA5ED157E7A for ; Mon, 25 Mar 2024 13:17:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.50 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372647; cv=none; b=V9dVsHLOgNGcDCRhlSkXOF5QPHYKxpNB9qbvQFLkXiRivCLIxUhUzoolKn+eMa6DDS7MwuuNyhAlH4Jn0JL6LNu6+N5NMAZQgluAbSUnT/AFXYyvm02oMcxzOeKK1MpEDAk8zKFDcVnqefMcM13vIho8nFRreFKGgGKgWDFrcM4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711372647; c=relaxed/simple; bh=nYwGcUeSu2lOGz0Fbu3qFb7BX7DjJR5EiBYQwBjfl1E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=XTeIxwFqmBqVYTMN9ppc1tWAuIFU+Gi5tBVYgiM9jkw0GrJMEjuL1dRCnUTADB6Fu1ArLfjmUqRruXsKtc8xR6mmV91I8f0y6qQbMw6IiLTElmTE8VwAuDKLAp5PzBMDHeAIYQMgUDCbANTF9vfv6RWc5bFieJQrVqS9uHiEQAs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl; spf=none smtp.mailfrom=bgdev.pl; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b=r1BtkEeS; arc=none smtp.client-ip=209.85.128.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bgdev.pl Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.b="r1BtkEeS" Received: by mail-wm1-f50.google.com with SMTP id 5b1f17b1804b1-4147e135f4dso18285985e9.2 for ; Mon, 25 Mar 2024 06:17:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1711372641; x=1711977441; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=5q7lk+2TIXEIJZSxUoCWXqCmqzprQnmyhj7L+zSgmo8=; b=r1BtkEeSlKjiSt2MUfvytWTnMY2jEy7RElifeZbH0pqf9X8qlWyTdVVIN4jrWMvUPG fb9JJ6tdASUESlHb/67kPDQrqEspug01Gwf7tXhYcHFTZXP0BhXmYNuvIJrNeztWlNJc 003smVOaGc5Fsw9/3fjC/snNanXrI9feA5GTVO4B0+QpR7/AmdOCMjPlFilU1oeTo9rA AoEdB2KFiVyIsitGH8JXhzcNF16PJ0+Otf1yYpunc5G9kKziu6KqhZZRWdB3OXP9gO6u ej3AqfSXBMOrqRRelOFxhpzl8O2Y8LdzpZFrm+XfZaSFVZGOg+0e5aS0ywR35SQAqzwR AdIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711372641; x=1711977441; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=5q7lk+2TIXEIJZSxUoCWXqCmqzprQnmyhj7L+zSgmo8=; b=VFCLgwu0zWQamoOcLEz4IZvqMBz/zaZAgMXLydYP38/kMRa2i8TI4X5gTWm5N/ucUh CEYmi7bmV+K+U6mkAd0dfTr5Kv5wj8SnEd8cMjxHRdFbyrBvtKpTjYuX4fw7SOzggTnL jHAbZuC4EqxtsrIul3oa9yfs3EBj0GLf3OS+94ju0R/jBD9y3QoQBSp56Z2JD3IuF7P0 GIMRJEtfEMguuyapy4+AW6i55ieokzh2twwTYYt5/ilfznYcfCdMh9a62Eqh8HoiDhwD kx3z4/P6QesLD9ez7J4kJfTkVo1kG1Z5B5JCMgXxoNUj2vaNi/fhOFa5D2hH339XL0uH IMEA== X-Forwarded-Encrypted: i=1; AJvYcCVLz5XVqblrWUbku0Iwg4Y/GYyrqnr/ynXKRRL2ov54pZDTBc/Z/QZT7IBPCF54mf7zUL5YsLdL3PQvjulGs0FSTeZJHtZ69c8E2f6X X-Gm-Message-State: AOJu0YzM9lKZ+S9KADsWx4Hhp5qc1Mbenk+lqcdRe4I/24ZNiXmgw4RX o3sGFeHcBuibUdgRDCEr3dfJZ5UHm0dADISKlxbyd+U/Kqkaz/0Gx4Ig886Wblo= X-Google-Smtp-Source: AGHT+IEWAleZxrehHkAeog/CpCY+3Uky4Inx/OcRTu69F57KovJSV1TsaOT5odfmaMTbK0CJCnSfiQ== X-Received: by 2002:a5d:6986:0:b0:341:bdbf:ce0f with SMTP id g6-20020a5d6986000000b00341bdbfce0fmr4644057wru.34.1711372640881; Mon, 25 Mar 2024 06:17:20 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:75a:e000:861d:8b72:a859:4ce9]) by smtp.gmail.com with ESMTPSA id p11-20020a056000018b00b0033e75e5f280sm9485245wrx.113.2024.03.25.06.17.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Mar 2024 06:17:20 -0700 (PDT) From: Bartosz Golaszewski To: Marcel Holtmann , Luiz Augusto von Dentz , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Kalle Valo , Bjorn Andersson , Konrad Dybcio , Liam Girdwood , Mark Brown , Catalin Marinas , Will Deacon , Bjorn Helgaas , Bartosz Golaszewski , Saravana Kannan , Geert Uytterhoeven , Arnd Bergmann , Neil Armstrong , Marek Szyprowski , Alex Elder , Srini Kandagatla , Greg Kroah-Hartman , Abel Vesa , Manivannan Sadhasivam , Lukas Wunner , Dmitry Baryshkov Cc: linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-wireless@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH v6 16/16] PCI/pwrctl: add a PCI power control driver for power sequenced devices Date: Mon, 25 Mar 2024 14:16:24 +0100 Message-Id: <20240325131624.26023-17-brgl@bgdev.pl> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240325131624.26023-1-brgl@bgdev.pl> References: <20240325131624.26023-1-brgl@bgdev.pl> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Bartosz Golaszewski Add a PCI power control driver that's capable of correctly powering up devices using the power sequencing subsystem. The first user of this driver is the ath11k module on QCA6390. Signed-off-by: Bartosz Golaszewski --- drivers/pci/pwrctl/Kconfig | 9 +++ drivers/pci/pwrctl/Makefile | 2 + drivers/pci/pwrctl/pci-pwrctl-pwrseq.c | 89 ++++++++++++++++++++++++++ 3 files changed, 100 insertions(+) create mode 100644 drivers/pci/pwrctl/pci-pwrctl-pwrseq.c diff --git a/drivers/pci/pwrctl/Kconfig b/drivers/pci/pwrctl/Kconfig index 96195395af69..eb126225eb9f 100644 --- a/drivers/pci/pwrctl/Kconfig +++ b/drivers/pci/pwrctl/Kconfig @@ -5,4 +5,13 @@ menu "PCI Power control drivers" config PCI_PWRCTL tristate =20 +config PCI_PWRCTL_PWRSEQ + tristate "PCI Power Control driver using the Power Sequencing subsystem" + select POWER_SEQUENCING + select PCI_PWRCTL + default m if (ATH11K_PCI && ARCH_QCOM) + help + Enable support for the PCI power control driver for device + drivers using the Power Sequencing subsystem. + endmenu diff --git a/drivers/pci/pwrctl/Makefile b/drivers/pci/pwrctl/Makefile index 52ae0640ef7b..d308aae4800c 100644 --- a/drivers/pci/pwrctl/Makefile +++ b/drivers/pci/pwrctl/Makefile @@ -2,3 +2,5 @@ =20 obj-$(CONFIG_PCI_PWRCTL) +=3D pci-pwrctl-core.o pci-pwrctl-core-y :=3D core.o + +obj-$(CONFIG_PCI_PWRCTL_PWRSEQ) +=3D pci-pwrctl-pwrseq.o diff --git a/drivers/pci/pwrctl/pci-pwrctl-pwrseq.c b/drivers/pci/pwrctl/pc= i-pwrctl-pwrseq.c new file mode 100644 index 000000000000..c7a113a76c0c --- /dev/null +++ b/drivers/pci/pwrctl/pci-pwrctl-pwrseq.c @@ -0,0 +1,89 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2024 Linaro Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct pci_pwrctl_pwrseq_data { + struct pci_pwrctl ctx; + struct pwrseq_desc *pwrseq; +}; + +static void devm_pci_pwrctl_pwrseq_power_off(void *data) +{ + struct pwrseq_desc *pwrseq =3D data; + + pwrseq_power_off(pwrseq); +} + +static int pci_pwrctl_pwrseq_probe(struct platform_device *pdev) +{ + struct pci_pwrctl_pwrseq_data *data; + struct device *dev =3D &pdev->dev; + int ret; + + data =3D devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->pwrseq =3D devm_pwrseq_get(dev, of_device_get_match_data(dev)); + if (IS_ERR(data->pwrseq)) + return dev_err_probe(dev, PTR_ERR(data->pwrseq), + "Failed to get the power sequencer\n"); + + ret =3D pwrseq_power_on(data->pwrseq); + if (ret) + return dev_err_probe(dev, ret, + "Failed to power-on the device\n"); + + ret =3D devm_add_action_or_reset(dev, devm_pci_pwrctl_pwrseq_power_off, + data->pwrseq); + if (ret) + return ret; + + data->ctx.dev =3D dev; + + ret =3D devm_pci_pwrctl_device_set_ready(dev, &data->ctx); + if (ret) + return dev_err_probe(dev, ret, + "Failed to register the pwrctl wrapper\n"); + + return 0; +} + +static const struct of_device_id pci_pwrctl_pwrseq_of_match[] =3D { + { + /* ATH11K in QCA6390 package. */ + .compatible =3D "pci17cb,1101", + .data =3D "wlan", + }, + { + /* ATH12K in WCN7850 package. */ + .compatible =3D "pci17cb,1107", + .data =3D "wlan", + }, + { } +}; +MODULE_DEVICE_TABLE(of, pci_pwrctl_pwrseq_of_match); + +static struct platform_driver pci_pwrctl_pwrseq_driver =3D { + .driver =3D { + .name =3D "pci-pwrctl-pwrseq", + .of_match_table =3D pci_pwrctl_pwrseq_of_match, + }, + .probe =3D pci_pwrctl_pwrseq_probe, +}; +module_platform_driver(pci_pwrctl_pwrseq_driver); + +MODULE_AUTHOR("Bartosz Golaszewski "); +MODULE_DESCRIPTION("Generic PCI Power Control module for power sequenced d= evices"); +MODULE_LICENSE("GPL"); --=20 2.40.1