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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1705912972sm105880366b.14.2026.07.17.09.41.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 09:41:50 -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 v2 1/7] dt-bindings: reset: Add MT6589 toprgu reset IDs Date: Fri, 17 Jul 2026 18:39:12 +0200 Message-ID: <20260717163959.714561-2-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717163959.714561-1-l.scorcia@gmail.com> References: <20260717163959.714561-1-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 --- .../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 04:53:42 2026 Received: from mail-ej1-f53.google.com (mail-ej1-f53.google.com [209.85.218.53]) (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 0B2E73F99E1 for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1705912972sm105880366b.14.2026.07.17.09.41.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 09:41:53 -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 v2 2/7] watchdog: mediatek: Add wdt/toprgu resets for MT6589 Date: Fri, 17 Jul 2026 18:39:13 +0200 Message-ID: <20260717163959.714561-3-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717163959.714561-1-l.scorcia@gmail.com> References: <20260717163959.714561-1-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 04:53:42 2026 Received: from mail-ej1-f43.google.com (mail-ej1-f43.google.com [209.85.218.43]) (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 747DE42903C for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1705912972sm105880366b.14.2026.07.17.09.41.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 09:41:56 -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 v2 3/7] dt-bindings: watchdog: Add compatible for MediaTek mt8167 Date: Fri, 17 Jul 2026 18:39:14 +0200 Message-ID: <20260717163959.714561-4-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717163959.714561-1-l.scorcia@gmail.com> References: <20260717163959.714561-1-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 04:53:42 2026 Received: from mail-ej1-f47.google.com (mail-ej1-f47.google.com [209.85.218.47]) (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 87BDB3F86EB for ; Fri, 17 Jul 2026 16:42:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.47 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784306523; cv=none; b=HSO3XMso9Rqom3nMALmpaiHsNMw1r8knqPdKKHy73As2OmH+CczSI2rvYASNYXPnprMaEnziJ6caagYOm41wg0fSjQ3TFJOFZe+S1pjnAmeEq+O+ejlzsAzzNJpVPMz/z69lnPX9Bx3+6AuOHozIMN6/5OjJInUBibPV8Flh5Og= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784306523; 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=t92BdS10v9tVfjGFXYeAYS2nn6mg/Mu0SUWLFX8MVMgDNjMlaDdDh4O6akqaAOhnP1q+EPXEnPkN+NwwwPiIyDgQQyQ2jl5zVopy345qFNBxdEdwE5WO6i4wG7b9pl5tvQkdtHrI7ONSgr17rsh6Was6zcWXTqnCk8HhmArt8DE= 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=iyLU+cn6; arc=none smtp.client-ip=209.85.218.47 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="iyLU+cn6" Received: by mail-ej1-f47.google.com with SMTP id a640c23a62f3a-c16794450aeso402272166b.2 for ; Fri, 17 Jul 2026 09:42:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784306520; x=1784911320; 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=iyLU+cn6/jg3oiD3D2TDzS9vIku8wIrh5cXpU0TiXedFVCFC2rzLOVmZ5ozr1IjC3G alDTYvCpye3Rdv0MXFQgIuArJePmDGsvgiKc1j4oVzsf5oCDZLt2ZYBX0Z06NvqGgZnL mVqZi+VWtQt/3QnCxVOg1GoJJnNQBWL4PDfJvgBdd/vjJwTRaOM79HzQ7H6lDha9nYmq UukVCNT51EKilvUAPNFCDeYB2nMB/7+Ysc4C5lzcjO2gsm6p94YbkZ9k50ZbrfsmoeWc YGNjdgMHYSkY3CyVW9Gke2iTdibGnFYv03igZJ3Bj+e9mws1xmWg6MZGXNEgEiwoCGJL ZuEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784306520; x=1784911320; 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=LNMNGJZ8JTgq2qyWbXEW2jLHEtbjH3jEZaLenogjOaYcGSMlx1G2VVSZwg/YPDQRqq OiaGaNdHqeP/jMK7ARH2pRlvH42n1KXMleCPG79/64aiEmz/+gxJrfy9YS5JN0o3hCoZ 6yE+fgjt5MkqRttv2ToU88YYyJ5dMKklhiq/piKqL6jYGmY3jh53kvX2wgyx6YYQ3SGG diRqRz72JTvkHtlWSEEDAmlbpLMBh7HPGfl9X/qMSQ5ZJ8Ie2EtHvfWsK4F6mtH+OXXY oILnpNc6OF73r7rmrlSozG/QJjb/+Xt3oe/ZfWQhEWFdjfTbM0nBqNEhDikIYWq2PnNh 2/4w== X-Forwarded-Encrypted: i=1; AHgh+Rr97mg8uLpXjup7MGCzKYmGVzPLbgnkPXDbNMDzLt2NImPFxKT830bYAsljbM48BLdyIor+ydV/kEDn/LM=@vger.kernel.org X-Gm-Message-State: AOJu0YwZnpOBBpWd3uGc0HbbxY/gz9Z4ayREvynFoBJ7FUINNJsoCmyu 62DncBsOQv+lTrACO8MaspqBRBYftvgS1gP1icrrmK1S97zXMY0eLHwJ X-Gm-Gg: AfdE7ckixFl2qJahtf/KDY05iOzq+slYQw+eJkQiZVmbaYDuP2oqn0zehZnbeXEB4j2 s2iUigh9A3q1g5Adz51V4PWYzRdjE+xd8l58zzjlb8Ptq9uDkJjBGZdBlgOpt/oySahXatoW+Ba 7b6ts7Qq62UnUKS2RZYxQfOi3bTUdMGG8NouRpA4O4K57vbFqEjvO1TrCR2a+ZbDJRBQV9va89x qDDelGTOmOkk4x9kl2Bj2Tybj5P2WVBHP7MorEfGJ5gEfs0kUTusgqoUBcMhS5sVw/Gv6Qx1gVA 8OxgfeGayKqV+8P+Tyzi7XhNED+G1ZA9M8nEqAYr5J/O5N51YUMo+XS3ffWLUCa4KQBZMfbTHbv 7phFFuIb5yNKyBxe0TE/pulqcw7YEyl+qaV0uJKY5v8qhs9gJ7CyEZpXeZAdTNVkppmAVgvFVt4 pG9GGuGNQ/ X-Received: by 2002:a17:907:db02:b0:c12:8b1c:454f with SMTP id a640c23a62f3a-c16b457b132mr151894766b.2.1784306519677; Fri, 17 Jul 2026 09:41:59 -0700 (PDT) Received: from luca-vm.. ([109.52.116.145]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1705912972sm105880366b.14.2026.07.17.09.41.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 09:41:59 -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 v2 4/7] dt-bindings: reset: Add reset controller constants for mt8167 Date: Fri, 17 Jul 2026 18:39:15 +0200 Message-ID: <20260717163959.714561-5-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717163959.714561-1-l.scorcia@gmail.com> References: <20260717163959.714561-1-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 04:53:42 2026 Received: from mail-ej1-f51.google.com (mail-ej1-f51.google.com [209.85.218.51]) (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 7DDEF42903D for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1705912972sm105880366b.14.2026.07.17.09.42.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 09:42:02 -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 v2 5/7] watchdog: mediatek: Add support for mt8167 TOPRGU/WDT Date: Fri, 17 Jul 2026 18:39:16 +0200 Message-ID: <20260717163959.714561-6-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717163959.714561-1-l.scorcia@gmail.com> References: <20260717163959.714561-1-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 04:53:42 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 357E642903C for ; 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([109.52.116.145]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1705912972sm105880366b.14.2026.07.17.09.42.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 09:42:05 -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 v2 6/7] arm64: dts: mt8167: Properly describe the SoC watchdog Date: Fri, 17 Jul 2026 18:39:17 +0200 Message-ID: <20260717163959.714561-7-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717163959.714561-1-l.scorcia@gmail.com> References: <20260717163959.714561-1-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 04:53:42 2026 Received: from mail-ej1-f41.google.com (mail-ej1-f41.google.com [209.85.218.41]) (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 08D0E3F86EB for ; Fri, 17 Jul 2026 16:42:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784306531; cv=none; b=tu+ox1u8NB5ERzkf5w8qRUdyXL9iABAAM6yyIZe18fag1DTnEjqW398PRVkQJJ1opiYjNZNlyhUOviZAYMGakHtppRNYG/RNK2L3b4Mhcqd31k5wVGsBztFCD35Y4JEQUYFfp0RYzDvfg6+pQPfVh8YHH2sIf0VXmRqnlnCbWUw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784306531; c=relaxed/simple; bh=BTQ/P+G60DVqMy8J3KP8yMYOqmG/cM0EBmXzazAI0b4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HX0BRd2cxZgdoRr5XTBy4m8WbxLo4v4HEk2gB0znGgju4h1H1AGTSqFpmSZP/glRrKxr27wuAtVSYaJUurg0BmBR2DTOnQf5t9qK/KxCk7Gjjl41y/EZx8M8uhgCRmu9DAaJ19cdjscS5+4A8tERIvduRZJVQkh8L6vos3RZ7+E= 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=KYigsg/P; arc=none smtp.client-ip=209.85.218.41 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="KYigsg/P" Received: by mail-ej1-f41.google.com with SMTP id a640c23a62f3a-c15e03c2763so402043066b.0 for ; Fri, 17 Jul 2026 09:42:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784306528; x=1784911328; 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=FVHGnXvBQpyTabWvxEW9kBAk5dj9pZG9taR2Z135E3o=; b=KYigsg/P/LDx8XbkJJR5EBdFcO1Su3Z8HVpC2p9tVnhUKw9dHLr4tVhTx7OMGardhp qtZPhc57c546rI/3H2qe0gPIcO1llFO2aKuWU04q3CvYwMVwuWuoaw9gSrsDno8WO0vI /k9zISIk6wCjVmj8wyj1wDpF+Ht9yQebFAn87NRbRO3LcGa8rwmoEJR5eDie6enaZk+Y yG+5GwyzfpW+tT2qPtD4ltVXzVVIa36d1NvRt2+r3Oql3Dtwc/VDrCHhb9W9HdV0G7dI suzFXy1e0bSxT41NdMf/3hj2SaTh7KKN3+w3DdbisUuSkrlHrK8b3Did96zKG5DMCKMH 0PCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784306528; x=1784911328; 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=FVHGnXvBQpyTabWvxEW9kBAk5dj9pZG9taR2Z135E3o=; b=elKz9fsAFHBoAUmAwjeINvNkN+w31PioiY3ON6Pv1RsnRVVChaebpG6y40vCohPLnP QKipyDljxaAsbi5rWru9bDtkJGDfHQvKedyxAkeCRcILmb/ULNgnY1pcQTQVDlLAK6Ol LJLdwMkZJbUjpoZQd2jKBcpH8E1GcUI3A9Hdw6/njT36pzB0lZ7yo6nPszLM0Me19aSq R2jMAEnaaL+FSW36yVUJnVTeg18Zx8IMZqoYGzSbrK7VmMChUoeaN9fWgnu0qZobZ0Q/ LSO6VgqVac6eOax+R50KmxweBS8VgFM9OBJ0KLILwyEVUZ0Sz17YvBOi15R5ADSJaI8E kIGg== X-Forwarded-Encrypted: i=1; AHgh+RpWuq8lGZNhI3r/cfBSP/OMqZjDoRRLzq4omRjhBO1lR87O7hHHBgvTu3dI8nkXkQOYFgktIisBec99voA=@vger.kernel.org X-Gm-Message-State: AOJu0Yye+zGp2js6bzZ7LyKh9bTTRKaQNQXXMTCTH9GbwyxWFG6zdQBB GBrSkts/VBEcWuAJZUViC17rREoBl8TRV2aYIO17tn5OE1piJ5rct3Hk X-Gm-Gg: AfdE7ckXYiO6IYYi4/5/zT2BS5YEUVaUFUzjoOME/1u4pqfNoQIGc+B65TlFOkaPmTX T8sSElfRRv1bZlHiokT3PsTZCemYS7dS+PGXXeYf92xxfkv2sp/sJXPENuMKd85ET+icyVBZi5V ETGKibopwtLe41Z0aBf9v5xVn9kRybglmBUhGaGKGy7KaWaxH20V75JtKDL6OS+QL8bo61pPwZs 869Rx0dI8yB1stZXXtysuRQOazAkdxIoZqr2DMkn3EBkS0SC9JT858v8LFenvfQ6NJCw/K0pYtD ZgO4B3bn9RIbmkjdqazzYnHs+6Eo6aQUnyNhmh3uHOVYwGRRLs7c1DUWVv7jln36/U4Jq8qIEaW zrBAv/e7vf59VHeOKrKX1fRNR+Cn535EI/HIFZk0vFCDavarjhuwwLfAet/wiBWl4Jw3YJJwx7Q == X-Received: by 2002:a17:907:c28:b0:c12:3cbf:9f6d with SMTP id a640c23a62f3a-c16b4002a0emr155344366b.1.1784306528247; Fri, 17 Jul 2026 09:42:08 -0700 (PDT) Received: from luca-vm.. ([109.52.116.145]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1705912972sm105880366b.14.2026.07.17.09.42.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 09:42:07 -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 v2 7/7] soc: mediatek: mtk-mmsys: Add resets for mt8167 Date: Fri, 17 Jul 2026 18:39:18 +0200 Message-ID: <20260717163959.714561-8-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260717163959.714561-1-l.scorcia@gmail.com> References: <20260717163959.714561-1-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 | 41 +++++++++++++++++++++++++++++ drivers/soc/mediatek/mtk-mmsys.c | 3 +++ 2 files changed, 44 insertions(+) diff --git a/drivers/soc/mediatek/mt8167-mmsys.h b/drivers/soc/mediatek/mt8= 167-mmsys.h index eef14083c47b..dc3e882a9893 100644 --- a/drivers/soc/mediatek/mt8167-mmsys.h +++ b/drivers/soc/mediatek/mt8167-mmsys.h @@ -3,6 +3,47 @@ #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 */ + [MT8167_MMSYS_SW0_RST_B_MIPI_TX_CONFIG] =3D MMSYS_RST_NR(0, 26), + /* 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