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Cc: Wesley Cheng Signed-off-by: Luca Weiss --- Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml b/= Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml index 6c0b8b6538246adf746fe7ccd6df936131c61444..07549dec0f74234465fa9b6ab21= 871762a2f5127 100644 --- a/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml +++ b/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml @@ -38,6 +38,10 @@ properties: - description: USB2/HS PHY - description: USB3/SS PHY =20 + usb-soc-be: + $ref: /schemas/types.yaml#/definitions/phandle + description: Link to the USB SoC sound backend + phys: minItems: 1 maxItems: 19 --=20 2.49.0 From nobody Mon Feb 9 13:51:28 2026 Received: from mail-ed1-f54.google.com (mail-ed1-f54.google.com [209.85.208.54]) (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 8439F243364 for ; 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[2a02:8388:6584:6400:d322:7350:96d2:429d]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ace6e4e7b98sm118765066b.66.2025.04.25.03.46.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Apr 2025 03:46:22 -0700 (PDT) From: Luca Weiss Date: Fri, 25 Apr 2025 12:44:52 +0200 Subject: [PATCH 2/6] ASoC: dt-bindings: qcom,q6afe: Document q6usb subnode Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250425-fp4-usb-audio-offload-v1-2-f90f571636e4@fairphone.com> References: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> In-Reply-To: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Felipe Balbi , Srinivas Kandagatla , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Bjorn Andersson , Konrad Dybcio , Wesley Cheng , Stephan Gerhold Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, Luca Weiss X-Mailer: b4 0.14.2 Document the subnode for Q6USB, used for USB audio offloading. Cc: Wesley Cheng Signed-off-by: Luca Weiss --- Documentation/devicetree/bindings/sound/qcom,q6afe.yaml | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/qcom,q6afe.yaml b/Docu= mentation/devicetree/bindings/sound/qcom,q6afe.yaml index 297aa362aa54ab41a956b3ceda73d4c7027d72a7..268f7073d7972da2ef46d36264c= 0f7d8f648071b 100644 --- a/Documentation/devicetree/bindings/sound/qcom,q6afe.yaml +++ b/Documentation/devicetree/bindings/sound/qcom,q6afe.yaml @@ -29,6 +29,12 @@ properties: unevaluatedProperties: false description: Qualcomm DSP audio ports =20 + usbd: + type: object + $ref: /schemas/sound/qcom,q6usb.yaml# + unevaluatedProperties: false + description: Qualcomm DSP USB audio ports + required: - compatible - dais @@ -64,5 +70,12 @@ examples: qcom,sd-lines =3D <0 1 2 3>; }; }; + + usbd { + compatible =3D "qcom,q6usb"; + #sound-dai-cells =3D <1>; + iommus =3D <&apps_smmu 0x180f 0x0>; + qcom,usb-audio-intr-idx =3D /bits/ 16 <2>; + }; 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Signed-off-by: Luca Weiss Acked-by: Krzysztof Kozlowski --- Documentation/devicetree/bindings/sound/qcom,sm8250.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml b/Doc= umentation/devicetree/bindings/sound/qcom,sm8250.yaml index 57f62a228c262f38e703816efdcf443355052619..6f82e5cf6df30e021692015df9a= d7b09d4b2c7c6 100644 --- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml +++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml @@ -28,6 +28,7 @@ properties: - qcom,sm8750-sndcard - const: qcom,sm8450-sndcard - enum: + - fairphone,fp4-sndcard - fairphone,fp5-sndcard - qcom,apq8096-sndcard - qcom,qcm6490-idp-sndcard --=20 2.49.0 From nobody Mon Feb 9 13:51:28 2026 Received: from mail-ej1-f48.google.com (mail-ej1-f48.google.com [209.85.218.48]) (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 01A2C24A073 for ; Fri, 25 Apr 2025 10:46:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745577990; cv=none; b=qCKJnfEhPNau3UN3Y04UKt0nh6NzQVvntUg0F8z2MbkQfze55ntiXjXHdgMicsIbYbswh8+OG7Dy6TrXXbKD+Ay3tt7r1RNpNwwEYEh9W+N0LmQWfp9JhNXT6VFANmZGpUfNVU9nsu3sB4VJeQFpt4kwFy0c0eFgVQv+X1NfWCM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745577990; c=relaxed/simple; bh=RHZ+nVQR4jYnFcM+6sz6/jx39wA7buQUvA89B+ozHbU=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=C/3ZPH016JeSE7ZNHhrbD+1OFmRZN23FKPxpAD6OQm/E/EeZl3HnOSEUDV/SDwNIAu6TG2nrbfgJm5D1HrB3djb6Ojm/ZrSdZ+V9hkD3qbVs6djBiNx6vw0bY+5tizjf6waTzWESCZezZPEIpFbytZEWogjaK1+/8xrrMaS8+Dg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=fairphone.com; spf=pass smtp.mailfrom=fairphone.com; dkim=pass (2048-bit key) header.d=fairphone.com header.i=@fairphone.com header.b=mrudBh0s; arc=none smtp.client-ip=209.85.218.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=fairphone.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fairphone.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fairphone.com header.i=@fairphone.com header.b="mrudBh0s" Received: by mail-ej1-f48.google.com with SMTP id a640c23a62f3a-ace333d5f7bso347547666b.3 for ; Fri, 25 Apr 2025 03:46:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fairphone.com; s=fair; t=1745577985; x=1746182785; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=75uO0qnYhcwp/9Ctw5vuVScHSNK7KyN/uUVAzxbVZk0=; b=mrudBh0sff7oKJ0LpIKCnqAWZuJl10v1fkjVnQ4/C/5WNlTsZiR7+zLL7Dvqrh4yXz mB/s+RNKjRySQN9FrGONStrVkBzw4g54yhgLRlmxjwP1vZ/VyYWd8Th0qxZjB6ZvnWHr Bh1+JDX1f1diYAS+D3GZ8kRj0YBkllFJmUqZazlwUzJgrtPygcjoKeMnwaOQSiGKo5mM Ynmn5hvyc67wVOuzN9N3k4JuaWHY5YskKsav4O8m4+3k3UlM5XeVJq1lMaFofJ68ef++ OUOJgZoS5y99zPwLLH2KMx1TXoulKbpIDefwteXMohkkqdS8pqazsLmj+ZKYLoLYcLz4 o01w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1745577985; x=1746182785; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=75uO0qnYhcwp/9Ctw5vuVScHSNK7KyN/uUVAzxbVZk0=; b=hep8n7PaaZ5mFBPvaXM3lXJq2l10GmXJhCs5ABDM/URYXo2rpjZOptMBMrNK1Hzs7q pl6h9ZalwyEl2Hem1d0zKYHa4g9D/ijHBaWwIX8mbGxZ9A0SCmczGSmVMVk3HU76Em7d bL7F81Iw6rooxK3IQt0O0Tc2RBsrXBRId7n6fcgQHKVZBBCswnwZM8sdgtrOgWuQldwK bgROioZomAHqazPnXYxGSOP30HlU3HOV912C8CPhliaBLmHZhBwPW9NR9TGT2Fka5mNA CbxQnrtvyBy1urZuhLQymJeDWLvXTWuByv2IAM5a1Gfwc3BlHoskXVZf9WDDXlKpj1yK aGZQ== X-Forwarded-Encrypted: i=1; AJvYcCX6Ufn8o59IzICqcOkAGOMzLmRKw0wZ0KOWrpDseuaokUYEjBbb8KCNRH15UvrulXzNqjPqb6PUJCWUVOo=@vger.kernel.org X-Gm-Message-State: AOJu0YwCKfPmf/B7yvUOOzvLOhf8WlJ7Bzq5Q2qb8tjx2U3RZVo+zTbr Y+ElcZz4TqXRPj5FMTII9rr7hoP3zXaRv7H/5wVohso9E4EqxwOidpDQo+QO3Oc= X-Gm-Gg: ASbGncv6PJ7ihVqjrvKrIc374mKoJ77/B+9w3MnV98J9vkDp/shKwfgmtcsPNmrB/MO iId8pO/m7rPr4ovBawWgnpnDNyN0ZRiabxy3nYyYm+7fEJgQYoavjd/bHIM0MNhfcrG/G3/iHgL PylCP/NpuiUfHEmwgZ2bkkJ1DxunmtjY+fMtY8zkzPQhDRBoFLj3S3/L6hecksiRlq+Yv+sZKSI LAb1RDgcs61AcQOfUSdyMKWhwscWNciFDdMN185LWcm2pSH6uuRbvipoUIVH68WNLknmIt6yIg0 DUtn/wHDnvp16JYN6PsksO4LuBSlGOkscFV/93MYYkbzpn2dURKmylNe2ubCbSowfHwzb3eVqvg 3irKRduF88pd2puPCCcOcTwohn0iX55+VKmNqr9G7CnddsZ5S0a0xI/fA X-Google-Smtp-Source: AGHT+IHVMEndxh0XKCZm79DiwrttbUOJ0EeVVGzRFO8YMZeacxUM0z2X0Q0OP58ATSu1eJXn4Hqq4A== X-Received: by 2002:a17:906:6a0a:b0:ac7:9712:d11a with SMTP id a640c23a62f3a-ace710f03e9mr179888566b.32.1745577985179; Fri, 25 Apr 2025 03:46:25 -0700 (PDT) Received: from [100.64.0.4] (2a02-8388-6584-6400-d322-7350-96d2-429d.cable.dynamic.v6.surfer.at. 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Signed-off-by: Luca Weiss Reviewed-by: Dmitry Baryshkov --- sound/soc/qcom/sm8250.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/qcom/sm8250.c b/sound/soc/qcom/sm8250.c index 43c93e24d77259f232062c7e4182a39151111c59..0025c8957abddf54d0aab6eb68a= cc79f031917f9 100644 --- a/sound/soc/qcom/sm8250.c +++ b/sound/soc/qcom/sm8250.c @@ -208,6 +208,7 @@ static int sm8250_platform_probe(struct platform_device= *pdev) } =20 static const struct of_device_id snd_sm8250_dt_match[] =3D { + { .compatible =3D "fairphone,fp4-sndcard", .data =3D "sm7225" }, { .compatible =3D "fairphone,fp5-sndcard", .data =3D "qcm6490" }, { .compatible =3D "qcom,qrb4210-rb2-sndcard", .data =3D "sm8250" }, { .compatible =3D "qcom,qrb5165-rb5-sndcard", .data =3D "sm8250" }, --=20 2.49.0 From nobody Mon Feb 9 13:51:28 2026 Received: from mail-ej1-f46.google.com (mail-ej1-f46.google.com [209.85.218.46]) (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 805C924C66E for ; 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[2a02:8388:6584:6400:d322:7350:96d2:429d]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ace6e4e7b98sm118765066b.66.2025.04.25.03.46.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Apr 2025 03:46:26 -0700 (PDT) From: Luca Weiss Date: Fri, 25 Apr 2025 12:44:55 +0200 Subject: [PATCH 5/6] arm64: dts: qcom: sm6350: Add q6usbdai node Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250425-fp4-usb-audio-offload-v1-5-f90f571636e4@fairphone.com> References: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> In-Reply-To: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Felipe Balbi , Srinivas Kandagatla , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Bjorn Andersson , Konrad Dybcio , Wesley Cheng , Stephan Gerhold Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, Luca Weiss X-Mailer: b4 0.14.2 Add a node for q6usb which handles USB audio offloading, allowing to play audio via a USB-C headset with lower power consumption and enabling some other features. Signed-off-by: Luca Weiss Reviewed-by: Dmitry Baryshkov --- arch/arm64/boot/dts/qcom/sm6350.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qco= m/sm6350.dtsi index 375f964e793626115609996aa25ea4e0fefe6c5e..9a1b9f02282a0cf2e39bf2ade21= 989dbf4362bc1 100644 --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi @@ -1351,6 +1351,13 @@ q6afecc: clock-controller { compatible =3D "qcom,q6afe-clocks"; #clock-cells =3D <2>; }; + + q6usbdai: usbd { + compatible =3D "qcom,q6usb"; + iommus =3D <&apps_smmu 0x100f 0x0>; + #sound-dai-cells =3D <1>; + qcom,usb-audio-intr-idx =3D /bits/ 16 <2>; + }; }; =20 q6asm: service@7 { @@ -1988,6 +1995,7 @@ usb_1_dwc3: usb@a600000 { snps,dis-u2-entry-quirk; phys =3D <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>; phy-names =3D "usb2-phy", "usb3-phy"; + usb-soc-be =3D <&q6usbdai>; usb-role-switch; =20 ports { --=20 2.49.0 From nobody Mon Feb 9 13:51:28 2026 Received: from mail-ej1-f46.google.com (mail-ej1-f46.google.com [209.85.218.46]) (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 8F7E824BD03 for ; 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[2a02:8388:6584:6400:d322:7350:96d2:429d]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ace6e4e7b98sm118765066b.66.2025.04.25.03.46.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Apr 2025 03:46:27 -0700 (PDT) From: Luca Weiss Date: Fri, 25 Apr 2025 12:44:56 +0200 Subject: [PATCH 6/6] arm64: dts: qcom: sm7225-fairphone-fp4: Enable USB audio offload support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250425-fp4-usb-audio-offload-v1-6-f90f571636e4@fairphone.com> References: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> In-Reply-To: <20250425-fp4-usb-audio-offload-v1-0-f90f571636e4@fairphone.com> To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Felipe Balbi , Srinivas Kandagatla , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Bjorn Andersson , Konrad Dybcio , Wesley Cheng , Stephan Gerhold Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, Luca Weiss X-Mailer: b4 0.14.2 Enable USB audio offloading which allows to play audio via a USB-C headset with lower power consumption and enabling some other features. This can be used like the following: $ amixer -c0 cset name=3D'USB_RX Audio Mixer MultiMedia1' On $ aplay --device=3Dplughw:0,0 test.wav Compared to regular playback to the USB sound card no interrupts should appear on the xhci-hcd interrupts during playback, instead the ADSP will be handling the playback. Signed-off-by: Luca Weiss Reviewed-by: Dmitry Baryshkov --- arch/arm64/boot/dts/qcom/sm6350.dtsi | 3 ++ arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 37 +++++++++++++++++++= ++++ 2 files changed, 40 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qco= m/sm6350.dtsi index 9a1b9f02282a0cf2e39bf2ade21989dbf4362bc1..ade69296cbc99eab3ee6dc020f2= 064d102a3b115 100644 --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi @@ -2956,6 +2956,9 @@ wifi: wifi@18800000 { }; }; =20 + sound: sound { + }; + thermal-zones { aoss0-thermal { thermal-sensors =3D <&tsens0 0>; diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64= /boot/dts/qcom/sm7225-fairphone-fp4.dts index 71e87ab929551b339216a5fa583833ed8661a606..0f8e0a988db0d32384f39537731= c77344ec50cf2 100644 --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "sm7225.dtsi" #include "pm6150l.dtsi" @@ -955,6 +956,12 @@ channel@644 { }; }; =20 +&q6asmdai { + dai@0 { + reg =3D ; + }; +}; + &qup_uart1_cts { /* * Configure a bias-bus-hold on CTS to lower power @@ -1023,6 +1030,35 @@ &sdhc_2 { status =3D "okay"; }; =20 +&sound { + compatible =3D "fairphone,fp4-sndcard"; + model =3D "Fairphone 4"; + + mm1-dai-link { + link-name =3D "MultiMedia1"; + + cpu { + sound-dai =3D <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>; + }; + }; + + usb-dai-link { + link-name =3D "USB Playback"; + + cpu { + sound-dai =3D <&q6afedai USB_RX>; + }; + + codec { + sound-dai =3D <&q6usbdai USB_RX>; + }; + + platform { + sound-dai =3D <&q6routing>; + }; + }; +}; + &tlmm { gpio-reserved-ranges =3D <13 4>, <56 2>; =20 @@ -1178,6 +1214,7 @@ &usb_1 { &usb_1_dwc3 { maximum-speed =3D "super-speed"; dr_mode =3D "otg"; + num-hc-interrupters =3D /bits/ 16 <3>; }; =20 &usb_1_dwc3_hs_out { --=20 2.49.0