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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e6ffbab34sm931684a12.14.2026.07.17.08.14.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 08:14:58 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 1/7] dt-bindings: reset: Add MT6589 toprgu reset IDs Date: Fri, 17 Jul 2026 17:11:08 +0200 Message-ID: <20260717151134.678839-2-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717151134.678839-1-l.scorcia@gmail.com> References: <20260717151134.678839-1-l.scorcia@gmail.com> 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" Add reset constants for the 12 MT6589 toprgu resets. Signed-off-by: Luca Leonardo Scorcia Acked-by: Akari Tsuyukusa --- .../reset/mediatek,mt6589-resets.h | 24 +++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 include/dt-bindings/reset/mediatek,mt6589-resets.h diff --git a/include/dt-bindings/reset/mediatek,mt6589-resets.h b/include/d= t-bindings/reset/mediatek,mt6589-resets.h new file mode 100644 index 000000000000..ee08c39df513 --- /dev/null +++ b/include/dt-bindings/reset/mediatek,mt6589-resets.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Author: Luca Leonardo Scorcia + */ + +#ifndef _DT_BINDINGS_RESET_CONTROLLER_MT6589 +#define _DT_BINDINGS_RESET_CONTROLLER_MT6589 + +/* TOPRGU resets */ +#define MT6589_TOPRGU_INFRA_SW_RST 0 +#define MT6589_TOPRGU_MM_SW_RST 1 +#define MT6589_TOPRGU_MFG_SW_RST 2 +#define MT6589_TOPRGU_VENC_SW_RST 3 +#define MT6589_TOPRGU_VDEC_SW_RST 4 +#define MT6589_TOPRGU_IMG_SW_RST 5 +#define MT6589_TOPRGU_DDRPHY_SW_RST 6 +#define MT6589_TOPRGU_MD_SW_RST 7 +#define MT6589_TOPRGU_INFRA_AO_SW_RST 8 +#define MT6589_TOPRGU_MD_LITE_SW_RST 9 +#define MT6589_TOPRGU_APMIXED_SW_RST 10 +#define MT6589_TOPRGU_PWRAP_SPI_CTL_RST 11 +#define MT6589_TOPRGU_SW_RST_NUM 12 + +#endif /* _DT_BINDINGS_RESET_CONTROLLER_MT6589 */ --=20 2.43.0 From nobody Sat Jul 25 04:54:27 2026 Received: from mail-ed1-f45.google.com (mail-ed1-f45.google.com [209.85.208.45]) (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 BA06242A15C for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e6ffbab34sm931684a12.14.2026.07.17.08.15.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 08:15:01 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/7] watchdog: mediatek: Add wdt/toprgu resets for MT6589 Date: Fri, 17 Jul 2026 17:11:09 +0200 Message-ID: <20260717151134.678839-3-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717151134.678839-1-l.scorcia@gmail.com> References: <20260717151134.678839-1-l.scorcia@gmail.com> 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" According to Android sources, MT6589 has 12 reset bits in the WDT_SWSYSRST register. Populate toprgu_sw_rst_num to allow toprgu resets in device trees of the many compatible devices. Signed-off-by: Luca Leonardo Scorcia --- drivers/watchdog/mtk_wdt.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c index 91d110646e16..e61f6ae74327 100644 --- a/drivers/watchdog/mtk_wdt.c +++ b/drivers/watchdog/mtk_wdt.c @@ -10,6 +10,7 @@ */ =20 #include +#include #include #include #include @@ -88,6 +89,10 @@ static const struct mtk_wdt_data mt2712_data =3D { .toprgu_sw_rst_num =3D MT2712_TOPRGU_SW_RST_NUM, }; =20 +static const struct mtk_wdt_data mt6589_data =3D { + .toprgu_sw_rst_num =3D MT6589_TOPRGU_SW_RST_NUM, +}; + static const struct mtk_wdt_data mt6735_data =3D { .toprgu_sw_rst_num =3D MT6735_TOPRGU_RST_NUM, }; @@ -493,7 +498,7 @@ static int mtk_wdt_resume(struct device *dev) =20 static const struct of_device_id mtk_wdt_dt_ids[] =3D { { .compatible =3D "mediatek,mt2712-wdt", .data =3D &mt2712_data }, - { .compatible =3D "mediatek,mt6589-wdt" }, + { .compatible =3D "mediatek,mt6589-wdt", .data =3D &mt6589_data }, { .compatible =3D "mediatek,mt6735-wdt", .data =3D &mt6735_data }, { .compatible =3D "mediatek,mt6795-wdt", .data =3D &mt6795_data }, { .compatible =3D "mediatek,mt7986-wdt", .data =3D &mt7986_data }, --=20 2.43.0 From nobody Sat Jul 25 04:54:27 2026 Received: from mail-ed1-f44.google.com (mail-ed1-f44.google.com [209.85.208.44]) (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 819C43BE14D for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e6ffbab34sm931684a12.14.2026.07.17.08.15.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 08:15:04 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/7] dt-bindings: watchdog: Add compatible for MediaTek mt8167 Date: Fri, 17 Jul 2026 17:11:10 +0200 Message-ID: <20260717151134.678839-4-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717151134.678839-1-l.scorcia@gmail.com> References: <20260717151134.678839-1-l.scorcia@gmail.com> 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" Currently mt8167 inherits its watchdog from the included mt8516 dtsi, which in turn falls back on mt6589-wdt. However according to the data sheet mt8167 has 15 sw resets instead of 12, and their order is different from mt6589. Update the wdt binding to add a dedicated compatible for mt8167. Signed-off-by: Luca Leonardo Scorcia --- Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.ya= ml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml index 953629cb9558..f514be8a5851 100644 --- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml @@ -26,6 +26,7 @@ properties: - mediatek,mt6795-wdt - mediatek,mt7986-wdt - mediatek,mt7988-wdt + - mediatek,mt8167-wdt - mediatek,mt8183-wdt - mediatek,mt8186-wdt - mediatek,mt8188-wdt --=20 2.43.0 From nobody Sat Jul 25 04:54:27 2026 Received: from mail-ed1-f53.google.com (mail-ed1-f53.google.com [209.85.208.53]) (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 745683F8886 for ; Fri, 17 Jul 2026 15:15:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784301311; cv=none; b=n3jbaArDEBXB1MLQ06vkJJDKDyZPwY5wt0EGvHsZ8korLocxQ8v7RPCQXymK17jzWrRXrFLKlavJO2rc4E5WmunupAdkWuwKxbc3yJ6iJXQLU3w3Yd7oLPaeqNrZzmnxmFJivhuIWfqmYJ8BONgMAyjXt783aVnSavYsEHF6ylQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784301311; c=relaxed/simple; bh=azANXe+5M9L9zSq3Q+0m8DIbeD+viIH7/dL+bU2mmzM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qBFVE/N65fBx1qAuFNOBOQZojqQga82cNjKKgESL1U/hRPnngvx6fllt+X3qskQlIRho1p0DCg2j3SBl52fR7YDKecuGlYHVLE4LkYVHZrPDqaHdbgFPbTsKTImnwBa7x2XydDu/fx/LIZwgoBUKEUcduQyImYnYF9I0F5ECG1g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=FD5iN7wG; arc=none smtp.client-ip=209.85.208.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FD5iN7wG" Received: by mail-ed1-f53.google.com with SMTP id 4fb4d7f45d1cf-69c600f76ccso7511703a12.0 for ; Fri, 17 Jul 2026 08:15:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784301308; x=1784906108; 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:content-type; bh=qnd4qpp2azkxFnT2IbU2aZLbJ87tRh7KRsXF70B98Xk=; b=FD5iN7wGiEcdLFoz6N7kAKM19W+DjvH6Cn32TiqS8a00Wfvl0jflrs5q7MuQjUiOLJ 27cEalQ0M2sY/bdWhTgBbFHLANi6QP8DmFnHnvRAK5WTOVZXRTWkFZTXKr7O/bJhrrdB GSkET8JhID9wa42UcGzR3r11+IC3Rb2uZZ8gBc7EPK7LkfdXGoMKBHf2NIjd+3eAbQTg 2yEAclh/mEJHQXnCuWhR6kGGyGZilrCaz8TwNkljPCFpmAGKIql+8xNWWap4MtJNB4PP mZgheo3mRbEv5JGMVSbJBEwai5DYBPWqXvqDFbII0KKl99tHWYdNx2kBBGI2A8yKxnmD vUGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784301308; x=1784906108; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=qnd4qpp2azkxFnT2IbU2aZLbJ87tRh7KRsXF70B98Xk=; b=ihrg0jWlm8Nf0M5GWiQ/+IBDRoto4AQczlbCBwCoRYQ6+QL2mAlD/ZSHKvd1fo9YE8 hQ/UhziaHUh0QCEgHV6ZovKwFaAMqrdWF1TphN78dgRTl+csv0BXZ6Ls+wXagHw4F+1G I9eMM8eBFt/n/zcRvqFAaMdAo8BjpjFIhQHdbAmjgvPH4hfnvWr4cbLckQrvNOzbB7Jz eGS8N0iar9brnOptW0bxcTG2irVinp8odhbch0GCi7wZiumOVpUrp3mrTD/aV1MwDorW BV+bpGgT0Kvzx2QKAbeKKsy7RovD/ub4UcIJ1gTWz40KhgPfvPSGf2n1wf36s5LYDpP5 rTXw== X-Forwarded-Encrypted: i=1; AHgh+RrM0Z7CNxFkkSF+vlR9ICgSCFkfD+9FOGCLB4IVIfRHEBKKZxS0dP+7L+f5HyXxgEGGgRwXolSG0pg5Iek=@vger.kernel.org X-Gm-Message-State: AOJu0Yws/ZYl/0D6TwvBfnVS9enjOEOwMkbWZTRv9kBkKkqZeWJP/RuH PGDkrg9UqSOutaNssTPM5OH+ikhRS2F8Il0ahhaIxUNgeI2/2gFvSqNb X-Gm-Gg: AfdE7cn4PSm3JTE1aFlxNRQTFppF3Cx12LSDzmJzKUt/bX5by0XprKjaxI+iTCQ0td0 LmE/ojRe+4IkqYcWzZAVjmEg+Y/wuXYFjkdHFZjwn+z1EBzXzerJbd2YSeDoEmUWhLMxsM13y4N +ZD8LBaw2yTRXucdMeCA7FGz5iDrQmooi8u7jOZ3APf8vdxEuXl7RELi2+366kmoDUbymPXMIUi JL6+BuhlmHKb/cpiktkQ5s+wHmmM1vEQHmUNg9YI7c3ZLJ1Nfirf04PhdHG+oiP7EnK9peS922F F8fdThcuzbv5PZWlMVqthnHras+zlv/6VBWk1cx6LB4MQevXkUm76Z5JxRWEOGzmmSV29KTd9I+ AmrnR/4R8jfU3GNLtAfDkJuKFjRHXtIjF4XkTFJTV6PoSyv4a82YFnA9Q8JhN3BCJRlti6ESktQ == X-Received: by 2002:a05:6402:3554:b0:69e:35ae:8af9 with SMTP id 4fb4d7f45d1cf-69e65272664mr1237776a12.14.1784301307558; Fri, 17 Jul 2026 08:15:07 -0700 (PDT) Received: from luca-vm.. ([109.52.116.145]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e6ffbab34sm931684a12.14.2026.07.17.08.15.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 08:15:07 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 4/7] dt-bindings: reset: Add reset controller constants for mt8167 Date: Fri, 17 Jul 2026 17:11:11 +0200 Message-ID: <20260717151134.678839-5-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717151134.678839-1-l.scorcia@gmail.com> References: <20260717151134.678839-1-l.scorcia@gmail.com> 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" Add the various bits that identify watchdog and mmsys resets. IDs for mmsys resets restart from zero as they are used in a different device. Signed-off-by: Luca Leonardo Scorcia --- .../reset/mediatek,mt8167-resets.h | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 include/dt-bindings/reset/mediatek,mt8167-resets.h diff --git a/include/dt-bindings/reset/mediatek,mt8167-resets.h b/include/d= t-bindings/reset/mediatek,mt8167-resets.h new file mode 100644 index 000000000000..85d2d0e99c68 --- /dev/null +++ b/include/dt-bindings/reset/mediatek,mt8167-resets.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ +#ifndef _DT_BINDINGS_RESET_CONTROLLER_MT8167 +#define _DT_BINDINGS_RESET_CONTROLLER_MT8167 + +/* TOPRGU resets, these are actual bits in the register */ +#define MT8167_TOPRGU_DDRPHY_FLASH_RST 0 +#define MT8167_TOPRGU_AUD_PAD_RST 1 +#define MT8167_TOPRGU_MM_RST 2 +#define MT8167_TOPRGU_MFG_RST 3 +#define MT8167_TOPRGU_MDSYS_RST 4 +#define MT8167_TOPRGU_CONN_RST 5 +#define MT8167_TOPRGU_PAD2CAM_DIG_MIPI_RX_RST 6 +#define MT8167_TOPRGU_DIG_MIPI_TX_RST 7 +#define MT8167_TOPRGU_SPI_PAD_MACRO_RST 8 +/* bit 9 is reserved, unused according to data sheet */ +#define MT8167_TOPRGU_APMIXED_RST 10 +#define MT8167_TOPRGU_VDEC_RST 11 +#define MT8167_TOPRGU_CONN_MCU_RST 12 +#define MT8167_TOPRGU_EFUSE_RST 13 +#define MT8167_TOPRGU_PWRAP_SPICTL_RST 14 +#define MT8167_TOPRGU_SW_RST_NUM 15 + +/* MMSYS resets, these are IDs */ +#define MT8167_MMSYS_SW0_RST_B_SMI_COMMON 0 +#define MT8167_MMSYS_SW0_RST_B_SMI_LARB0 1 +#define MT8167_MMSYS_SW0_RST_B_CAM_MDP 2 +#define MT8167_MMSYS_SW0_RST_B_MDP_RDMA0 3 +#define MT8167_MMSYS_SW0_RST_B_MDP_RSZ0 4 +#define MT8167_MMSYS_SW0_RST_B_MDP_RSZ1 5 +#define MT8167_MMSYS_SW0_RST_B_MDP_TDSHP0 6 +#define MT8167_MMSYS_SW0_RST_B_MDP_WDMA 7 +#define MT8167_MMSYS_SW0_RST_B_MDP_WROT0 8 +#define MT8167_MMSYS_SW0_RST_B_FAKE_ENG 9 +#define MT8167_MMSYS_SW0_RST_B_MUTEX 10 +#define MT8167_MMSYS_SW0_RST_B_DISP_OVL0 11 +#define MT8167_MMSYS_SW0_RST_B_DISP_RDMA0 12 +#define MT8167_MMSYS_SW0_RST_B_DISP_RDMA1 13 +#define MT8167_MMSYS_SW0_RST_B_DISP_WDMA0 14 +#define MT8167_MMSYS_SW0_RST_B_DISP_COLOR 15 +#define MT8167_MMSYS_SW0_RST_B_DISP_CCORR 16 +#define MT8167_MMSYS_SW0_RST_B_DISP_AAL 17 +#define MT8167_MMSYS_SW0_RST_B_DISP_GAMMA 18 +#define MT8167_MMSYS_SW0_RST_B_DISP_DITHER 19 +#define MT8167_MMSYS_SW0_RST_B_DISP_UFOE 20 +#define MT8167_MMSYS_SW0_RST_B_DISP_PWM 21 +#define MT8167_MMSYS_SW0_RST_B_DSI0 22 +#define MT8167_MMSYS_SW0_RST_B_DPI0 23 +#define MT8167_MMSYS_SW0_RST_B_MIPI_TX_CONFIG 24 +#define MT8167_MMSYS_SW1_RST_B_LVDS_ENCODER 25 +#define MT8167_MMSYS_SW1_RST_B_DPI1 26 +#define MT8167_MMSYS_SW1_RST_B_HDMI 27 + +#endif /* _DT_BINDINGS_RESET_CONTROLLER_MT8167 */ --=20 2.43.0 From nobody Sat Jul 25 04:54:27 2026 Received: from mail-ed1-f53.google.com (mail-ed1-f53.google.com [209.85.208.53]) (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 5B74F42D75E for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e6ffbab34sm931684a12.14.2026.07.17.08.15.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 08:15:10 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 5/7] watchdog: mediatek: Add support for mt8167 TOPRGU/WDT Date: Fri, 17 Jul 2026 17:11:12 +0200 Message-ID: <20260717151134.678839-6-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717151134.678839-1-l.scorcia@gmail.com> References: <20260717151134.678839-1-l.scorcia@gmail.com> 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" Add support for the Top Reset Generation Unit/Watchdog Timer found on mt8167. Signed-off-by: Luca Leonardo Scorcia --- drivers/watchdog/mtk_wdt.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c index e61f6ae74327..10a3d4b5ee30 100644 --- a/drivers/watchdog/mtk_wdt.c +++ b/drivers/watchdog/mtk_wdt.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -110,6 +111,10 @@ static const struct mtk_wdt_data mt7988_data =3D { .has_swsysrst_en =3D true, }; =20 +static const struct mtk_wdt_data mt8167_data =3D { + .toprgu_sw_rst_num =3D MT8167_TOPRGU_SW_RST_NUM, +}; + static const struct mtk_wdt_data mt8183_data =3D { .toprgu_sw_rst_num =3D MT8183_TOPRGU_SW_RST_NUM, }; @@ -503,6 +508,7 @@ static const struct of_device_id mtk_wdt_dt_ids[] =3D { { .compatible =3D "mediatek,mt6795-wdt", .data =3D &mt6795_data }, { .compatible =3D "mediatek,mt7986-wdt", .data =3D &mt7986_data }, { .compatible =3D "mediatek,mt7988-wdt", .data =3D &mt7988_data }, + { .compatible =3D "mediatek,mt8167-wdt", .data =3D &mt8167_data }, { .compatible =3D "mediatek,mt8183-wdt", .data =3D &mt8183_data }, { .compatible =3D "mediatek,mt8186-wdt", .data =3D &mt8186_data }, { .compatible =3D "mediatek,mt8188-wdt", .data =3D &mt8188_data }, --=20 2.43.0 From nobody Sat Jul 25 04:54:27 2026 Received: from mail-ed1-f51.google.com (mail-ed1-f51.google.com [209.85.208.51]) (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 3F5C242DA41 for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e6ffbab34sm931684a12.14.2026.07.17.08.15.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 08:15:13 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 6/7] arm64: dts: mt8167: Properly describe the SoC watchdog Date: Fri, 17 Jul 2026 17:11:13 +0200 Message-ID: <20260717151134.678839-7-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717151134.678839-1-l.scorcia@gmail.com> References: <20260717151134.678839-1-l.scorcia@gmail.com> 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" Currently mt8167 inherits its watchdog from the included mt8516 dtsi, which in turn falls back on mt6589-wdt. However according to the data sheet mt8167 has 15 sw resets instead of 12, and the reset bits are different from mt6589. Use the dedicated mediatek,mt8167-wdt compatible for the watchdog driver, as it correctly describes the SoC resets. Signed-off-by: Luca Leonardo Scorcia --- arch/arm64/boot/dts/mediatek/mt8167.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/boot/dts/mediatek/mt8167.dtsi b/arch/arm64/boot/dts= /mediatek/mt8167.dtsi index 27cf32d7ae35..4ebf305c10fe 100644 --- a/arch/arm64/boot/dts/mediatek/mt8167.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8167.dtsi @@ -95,6 +95,13 @@ power-domain@MT8167_POWER_DOMAIN_CONN { }; }; =20 + watchdog: watchdog@10007000 { + compatible =3D "mediatek,mt8167-wdt"; + reg =3D <0 0x10007000 0 0x1000>; + interrupts =3D ; + #reset-cells =3D <1>; + }; + pio: pinctrl@1000b000 { compatible =3D "mediatek,mt8167-pinctrl"; reg =3D <0 0x1000b000 0 0x1000>; --=20 2.43.0 From nobody Sat Jul 25 04:54:27 2026 Received: from mail-ed1-f44.google.com (mail-ed1-f44.google.com [209.85.208.44]) (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 704BB42DA54 for ; Fri, 17 Jul 2026 15:15:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784301319; cv=none; b=Kmv66RRQtPx+fkgmLxwmV9gd0prCK5C0pyjyhUzm7+5s0KrEastcmlQfm2tFIc19rwcjKyiutSK5YWEK8KQIR3FVNEc5tcziHGZ3UfrvxKjMwuXSbtXXSrOya6R4WuHoGowP+fywhWSZt2hvnenvhhW2Ais90eE63ow/7uV6S8Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784301319; c=relaxed/simple; bh=tzxEdl4ko0nkT7PQb3oj9+Gb1UmzZ3kdn+n/fShpK0M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ioX3g45lcTMckZi8QWqQzKhyyqpvDhoeTGkG/ssvF9KfLR7JRcbj8DGyeIa9IZr4OrfZxWJWfWapsEcKLwjIN/FwlZrTrlqU9RK99jDzyfwuDFhwNhW/36oEppAYpxI1z6yfIee4QWLTRhKotBMfGYk0lKj0QRLQnLwOvxcwJeE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=ns//273v; arc=none smtp.client-ip=209.85.208.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ns//273v" Received: by mail-ed1-f44.google.com with SMTP id 4fb4d7f45d1cf-69e54d9c8c6so1894562a12.0 for ; Fri, 17 Jul 2026 08:15:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784301317; x=1784906117; 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:content-type; bh=d6Nle1J2Z37EDbTLYDXicAyW2PuOELSBhKsjOPEFE1Y=; b=ns//273vscLNwjdTLKPycd6Lu+f24zotpWLAsmJd2bNHU1fIs+3BkApew5AWwy/7qv +vf4VzSbcLt1Ht9BKZmDZS9nTuCJ/K7CRm53K11CV3Joyq3YX7XZinO7ga2IfS6iOaj/ 0IqfUZ9rA69iR7QrDXpmmxBz/AV1mKmOoK3Yogep6Roh68kU1Mh/QKMHu3KfN2lVMnRD yi6YJbKOnz3BHCzNQ3+PIOCFLcn4biJVEJXeQSQ/DWLVWgd9D/fK3ncEpc02fwDUitJH CTZysMiJWe99YaCB3Gl9VwEGOAJkR3+YjV86tPlbk1VlyHw+T4ZzW7OG0O3jikW7nIP1 mTEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784301317; x=1784906117; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=d6Nle1J2Z37EDbTLYDXicAyW2PuOELSBhKsjOPEFE1Y=; b=IIZmI7ZTNUO+Mmwur/PkPG054v2toBg/hm9PcApZXE/w+GYJPHsUYp0K2B204B2HKl fQI4D2fAhMmsrQdmrsKWuy8T6s1zEz2RX8jn2MlAp9v7FFxFBV8qR+h/HdcdiSjCVY/a miWlGwTkCLPnu0aCQ+7dnpek0GUkHHU3ghXbPhyFBVocXtKwkk9vcGAGrSlx10skLJe2 oHLwMNpLdXepmVQa6rsCOKtnqwwRCKWPuUc2ks/89vgU1BJ3dgdDJ/TUhzk2AI87iqkU 0pAmtu3VnnWLPQK+BhDxM0lte1VuiNNCMMzZBw0H/n8f8yLLS4Y9Stvnnsq/Fx/qUspy FEBg== X-Forwarded-Encrypted: i=1; AHgh+Ro0cH7nmncb9Mi2v5+RIRtGhdkG9bbHuQ2OaU+abXRCreMN4258f3Dx6u/7RJDe/Dn1oUYhtPluvIpFvig=@vger.kernel.org X-Gm-Message-State: AOJu0Yzs2gE2IioM/jiIuWy/ZeIE3fWVJFa0mBvB3PMdVJn93bZkB3xC aIS5j4KLAgS4iefyqLqOrjddf39ZYcZg81n48uRbPXSqJrc4IiIP/7vr X-Gm-Gg: AfdE7ckqCigOd/QPhTNaal/k+28mdsKsG95hM6eqsZhjXhYWTyyjBGNz0jCw3Ijq0s0 MguDuwCJsPrHB10znV0ZyGKT9q/6Hxd3Gmwq7czPQAyUfQHnMoTxcd4gXWulZPD166oWad1Foi/ KScSjQFp2XudKfImVVxObg49IatOzzmnmCodDuIugcAniwBm/Q9HblXdqe7O/0P8gIEaqalyRbV RtNwCtXWi/1pu/f1w8nMwL6E94gqA8pU8OS3Eu6UbrXjdPhFv7j65kKlJC+Ynmkzh+F6hfh3h/D Vg/0ITIiqxZcFPInhIQYKhwBS1Va2v7bpw4JQ2CA7FuztIOrX7Ua4zdjF5/eNNIEgkIlniJXHwe ons1QYAkTNr2tgBl6bACWt3DJuixzY60iKEroP5ex0dQ12PsBDxme/fYxUqSWNuSmnnOaRdI78w == X-Received: by 2002:a05:6402:50d1:b0:699:6d24:e298 with SMTP id 4fb4d7f45d1cf-69e65228d68mr1306044a12.8.1784301316360; Fri, 17 Jul 2026 08:15:16 -0700 (PDT) Received: from luca-vm.. ([109.52.116.145]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69e6ffbab34sm931684a12.14.2026.07.17.08.15.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 08:15:16 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Philipp Zabel , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 7/7] soc: mediatek: mtk-mmsys: Add resets for mt8167 Date: Fri, 17 Jul 2026 17:11:14 +0200 Message-ID: <20260717151134.678839-8-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717151134.678839-1-l.scorcia@gmail.com> References: <20260717151134.678839-1-l.scorcia@gmail.com> 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" The mt8167 SoC has 64 MMSYS resets, split in two contiguous 32-bits registers, MMSYS_SW0_RST_B (0x140) and MMSYS_SW1_RST_B (0x144), as also stated in the downstream kernel for the Lenovo Smart Clock in the ddp_reg.h header. Signed-off-by: Luca Leonardo Scorcia --- drivers/soc/mediatek/mt8167-mmsys.h | 40 +++++++++++++++++++++++++++++ drivers/soc/mediatek/mtk-mmsys.c | 3 +++ 2 files changed, 43 insertions(+) diff --git a/drivers/soc/mediatek/mt8167-mmsys.h b/drivers/soc/mediatek/mt8= 167-mmsys.h index eef14083c47b..b8f38ff8cf44 100644 --- a/drivers/soc/mediatek/mt8167-mmsys.h +++ b/drivers/soc/mediatek/mt8167-mmsys.h @@ -3,6 +3,46 @@ #ifndef __SOC_MEDIATEK_MT8167_MMSYS_H #define __SOC_MEDIATEK_MT8167_MMSYS_H =20 +#include +#include + +#define MT8167_MMSYS_SW0_RST_B 0x140 +#define MT8167_MMSYS_SW1_RST_B 0x144 + +/* MMSYS resets */ +static const u8 mmsys_mt8167_rst_tb[] =3D { + [MT8167_MMSYS_SW0_RST_B_SMI_COMMON] =3D MMSYS_RST_NR(0, 0), + [MT8167_MMSYS_SW0_RST_B_SMI_LARB0] =3D MMSYS_RST_NR(0, 1), + [MT8167_MMSYS_SW0_RST_B_CAM_MDP] =3D MMSYS_RST_NR(0, 2), + [MT8167_MMSYS_SW0_RST_B_MDP_RDMA0] =3D MMSYS_RST_NR(0, 3), + [MT8167_MMSYS_SW0_RST_B_MDP_RSZ0] =3D MMSYS_RST_NR(0, 4), + [MT8167_MMSYS_SW0_RST_B_MDP_RSZ1] =3D MMSYS_RST_NR(0, 5), + [MT8167_MMSYS_SW0_RST_B_MDP_TDSHP0] =3D MMSYS_RST_NR(0, 6), + [MT8167_MMSYS_SW0_RST_B_MDP_WDMA] =3D MMSYS_RST_NR(0, 7), + [MT8167_MMSYS_SW0_RST_B_MDP_WROT0] =3D MMSYS_RST_NR(0, 8), + [MT8167_MMSYS_SW0_RST_B_FAKE_ENG] =3D MMSYS_RST_NR(0, 9), + [MT8167_MMSYS_SW0_RST_B_MUTEX] =3D MMSYS_RST_NR(0, 10), + [MT8167_MMSYS_SW0_RST_B_DISP_OVL0] =3D MMSYS_RST_NR(0, 11), + [MT8167_MMSYS_SW0_RST_B_DISP_RDMA0] =3D MMSYS_RST_NR(0, 12), + [MT8167_MMSYS_SW0_RST_B_DISP_RDMA1] =3D MMSYS_RST_NR(0, 13), + [MT8167_MMSYS_SW0_RST_B_DISP_WDMA0] =3D MMSYS_RST_NR(0, 14), + [MT8167_MMSYS_SW0_RST_B_DISP_COLOR] =3D MMSYS_RST_NR(0, 15), + [MT8167_MMSYS_SW0_RST_B_DISP_CCORR] =3D MMSYS_RST_NR(0, 16), + [MT8167_MMSYS_SW0_RST_B_DISP_AAL] =3D MMSYS_RST_NR(0, 17), + [MT8167_MMSYS_SW0_RST_B_DISP_GAMMA] =3D MMSYS_RST_NR(0, 18), + [MT8167_MMSYS_SW0_RST_B_DISP_DITHER] =3D MMSYS_RST_NR(0, 19), + [MT8167_MMSYS_SW0_RST_B_DISP_UFOE] =3D MMSYS_RST_NR(0, 20), + [MT8167_MMSYS_SW0_RST_B_DISP_PWM] =3D MMSYS_RST_NR(0, 21), + [MT8167_MMSYS_SW0_RST_B_DSI0] =3D MMSYS_RST_NR(0, 22), + [MT8167_MMSYS_SW0_RST_B_DPI0] =3D MMSYS_RST_NR(0, 23), + /* bit 24 is SMI_COMMON again according to data sheet */ + /* bit 25 is SMI_LARB0 again according to data sheet */ + /* all other bits are not described in data sheet */ + [MT8167_MMSYS_SW1_RST_B_LVDS_ENCODER] =3D MMSYS_RST_NR(1, 2), + [MT8167_MMSYS_SW1_RST_B_DPI1] =3D MMSYS_RST_NR(1, 3), + [MT8167_MMSYS_SW1_RST_B_HDMI] =3D MMSYS_RST_NR(1, 4), +}; + #define MT8167_DISP_REG_CONFIG_DISP_OVL0_MOUT_EN 0x030 #define MT8167_DISP_REG_CONFIG_DISP_DITHER_MOUT_EN 0x038 #define MT8167_DISP_REG_CONFIG_DISP_COLOR0_SEL_IN 0x058 diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mm= sys.c index 2f3e0778bb17..abd96634b63c 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -57,6 +57,9 @@ static const struct mtk_mmsys_driver_data mt8167_mmsys_dr= iver_data =3D { .clk_driver =3D "clk-mt8167-mm", .routes =3D mt8167_mmsys_routing_table, .num_routes =3D ARRAY_SIZE(mt8167_mmsys_routing_table), + .sw0_rst_offset =3D MT8167_MMSYS_SW0_RST_B, + .rst_tb =3D mmsys_mt8167_rst_tb, + .num_resets =3D ARRAY_SIZE(mmsys_mt8167_rst_tb), }; =20 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data =3D { --=20 2.43.0