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From: Luca Leonardo Scorcia <l.scorcia@gmail.com>
To: linux-mediatek@lists.infradead.org
Cc: Luca Leonardo Scorcia <l.scorcia@gmail.com>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/7] soc: mediatek: mtk-mmsys: Add resets for mt8167
Date: Wed, 11 Feb 2026 19:03:22 +0000	[thread overview]
Message-ID: <0ab331c556d76ddfc7f287d6288c4f60f4ef90c8.1770836190.git.l.scorcia@gmail.com> (raw)
In-Reply-To: <cover.1770836189.git.l.scorcia@gmail.com>

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 <l.scorcia@gmail.com>
---
 drivers/soc/mediatek/mt8167-mmsys.h | 3 +++
 drivers/soc/mediatek/mtk-mmsys.c    | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/soc/mediatek/mt8167-mmsys.h b/drivers/soc/mediatek/mt8167-mmsys.h
index eef14083c47b..2d20b21fb0ea 100644
--- a/drivers/soc/mediatek/mt8167-mmsys.h
+++ b/drivers/soc/mediatek/mt8167-mmsys.h
@@ -18,6 +18,9 @@
 #define MT8167_DSI0_SEL_IN_RDMA0			0x1
 #define MT8167_DSI0_SEL_IN_MASK				0x3
 
+#define MT8167_MMSYS_SW0_RST_B				0x140
+#define MT8167_MMSYS_SW1_RST_B				0x144
+
 static const struct mtk_mmsys_routes mt8167_mmsys_routing_table[] = {
 	MMSYS_ROUTE(OVL0, COLOR0,
 		    MT8167_DISP_REG_CONFIG_DISP_OVL0_MOUT_EN, OVL0_MOUT_EN_COLOR0,
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index bb4639ca0b8c..03cbc393f978 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -57,6 +57,8 @@ static const struct mtk_mmsys_driver_data mt8167_mmsys_driver_data = {
 	.clk_driver = "clk-mt8167-mm",
 	.routes = mt8167_mmsys_routing_table,
 	.num_routes = ARRAY_SIZE(mt8167_mmsys_routing_table),
+	.sw0_rst_offset = MT8167_MMSYS_SW0_RST_B,
+	.num_resets = 64,
 };
 
 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
-- 
2.43.0


  reply	other threads:[~2026-02-11 19:06 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-11 19:03 [PATCH 0/7] arm64: dts: mt8167: Add the mmsys reset bit to reset DSI Luca Leonardo Scorcia
2026-02-11 19:03 ` Luca Leonardo Scorcia [this message]
2026-02-12  9:52   ` [PATCH 1/7] soc: mediatek: mtk-mmsys: Add resets for mt8167 AngeloGioacchino Del Regno
2026-02-11 19:03 ` [PATCH 2/7] dt-bindings: mediatek: Add reset controller constants " Luca Leonardo Scorcia
2026-02-12  9:52   ` AngeloGioacchino Del Regno
2026-02-12 11:36   ` Krzysztof Kozlowski
2026-02-11 19:03 ` [PATCH 3/7] watchdog: mediatek: Add support for mt8167 TOPRGU/WDT Luca Leonardo Scorcia
2026-02-12  9:52   ` AngeloGioacchino Del Regno
2026-02-11 19:03 ` [PATCH 4/7] dt-bindings: watchdog: Support MediaTek MT8167 wdt Luca Leonardo Scorcia
2026-02-12  9:52   ` AngeloGioacchino Del Regno
2026-02-11 19:03 ` [PATCH 5/7] arm64: dts: mt8167: Add a specific watchdog dts node Luca Leonardo Scorcia
2026-02-12  9:52   ` AngeloGioacchino Del Regno
2026-02-11 19:03 ` [PATCH 6/7] arm64: dts: mt8167: Add the mmsys reset bit to reset dsi Luca Leonardo Scorcia
2026-02-12  8:01   ` Luca Leonardo Scorcia
2026-02-12  9:57     ` AngeloGioacchino Del Regno
2026-02-12  9:52   ` AngeloGioacchino Del Regno
2026-02-11 19:03 ` [PATCH 7/7] arm64: dts: mt8167: Add additional mmsys reset bits Luca Leonardo Scorcia
2026-02-12  9:55   ` AngeloGioacchino Del Regno
2026-02-12 11:38   ` Krzysztof Kozlowski

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