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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 v2 7/7] soc: mediatek: mtk-mmsys: Add resets for mt8167
Date: Fri, 17 Jul 2026 18:39:18 +0200	[thread overview]
Message-ID: <20260717163959.714561-8-l.scorcia@gmail.com> (raw)
In-Reply-To: <20260717163959.714561-1-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 | 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/mt8167-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
 
+#include <linux/soc/mediatek/mtk-mmsys.h>
+#include <dt-bindings/reset/mediatek,mt8167-resets.h>
+
+#define MT8167_MMSYS_SW0_RST_B				0x140
+#define MT8167_MMSYS_SW1_RST_B				0x144
+
+/* MMSYS resets */
+static const u8 mmsys_mt8167_rst_tb[] = {
+	[MT8167_MMSYS_SW0_RST_B_SMI_COMMON]	= MMSYS_RST_NR(0, 0),
+	[MT8167_MMSYS_SW0_RST_B_SMI_LARB0]	= MMSYS_RST_NR(0, 1),
+	[MT8167_MMSYS_SW0_RST_B_CAM_MDP]	= MMSYS_RST_NR(0, 2),
+	[MT8167_MMSYS_SW0_RST_B_MDP_RDMA0]	= MMSYS_RST_NR(0, 3),
+	[MT8167_MMSYS_SW0_RST_B_MDP_RSZ0]	= MMSYS_RST_NR(0, 4),
+	[MT8167_MMSYS_SW0_RST_B_MDP_RSZ1]	= MMSYS_RST_NR(0, 5),
+	[MT8167_MMSYS_SW0_RST_B_MDP_TDSHP0]	= MMSYS_RST_NR(0, 6),
+	[MT8167_MMSYS_SW0_RST_B_MDP_WDMA]	= MMSYS_RST_NR(0, 7),
+	[MT8167_MMSYS_SW0_RST_B_MDP_WROT0]	= MMSYS_RST_NR(0, 8),
+	[MT8167_MMSYS_SW0_RST_B_FAKE_ENG]	= MMSYS_RST_NR(0, 9),
+	[MT8167_MMSYS_SW0_RST_B_MUTEX]		= MMSYS_RST_NR(0, 10),
+	[MT8167_MMSYS_SW0_RST_B_DISP_OVL0]	= MMSYS_RST_NR(0, 11),
+	[MT8167_MMSYS_SW0_RST_B_DISP_RDMA0]	= MMSYS_RST_NR(0, 12),
+	[MT8167_MMSYS_SW0_RST_B_DISP_RDMA1]	= MMSYS_RST_NR(0, 13),
+	[MT8167_MMSYS_SW0_RST_B_DISP_WDMA0]	= MMSYS_RST_NR(0, 14),
+	[MT8167_MMSYS_SW0_RST_B_DISP_COLOR]	= MMSYS_RST_NR(0, 15),
+	[MT8167_MMSYS_SW0_RST_B_DISP_CCORR]	= MMSYS_RST_NR(0, 16),
+	[MT8167_MMSYS_SW0_RST_B_DISP_AAL]	= MMSYS_RST_NR(0, 17),
+	[MT8167_MMSYS_SW0_RST_B_DISP_GAMMA]	= MMSYS_RST_NR(0, 18),
+	[MT8167_MMSYS_SW0_RST_B_DISP_DITHER]	= MMSYS_RST_NR(0, 19),
+	[MT8167_MMSYS_SW0_RST_B_DISP_UFOE]	= MMSYS_RST_NR(0, 20),
+	[MT8167_MMSYS_SW0_RST_B_DISP_PWM]	= MMSYS_RST_NR(0, 21),
+	[MT8167_MMSYS_SW0_RST_B_DSI0]		= MMSYS_RST_NR(0, 22),
+	[MT8167_MMSYS_SW0_RST_B_DPI0]		= 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]	= MMSYS_RST_NR(0, 26),
+	/* all other bits are not described in data sheet */
+	[MT8167_MMSYS_SW1_RST_B_LVDS_ENCODER]	= MMSYS_RST_NR(1, 2),
+	[MT8167_MMSYS_SW1_RST_B_DPI1]		= MMSYS_RST_NR(1, 3),
+	[MT8167_MMSYS_SW1_RST_B_HDMI]		= 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-mmsys.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_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,
+	.rst_tb = mmsys_mt8167_rst_tb,
+	.num_resets = ARRAY_SIZE(mmsys_mt8167_rst_tb),
 };
 
 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
-- 
2.43.0


      parent reply	other threads:[~2026-07-17 16:42 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-17 16:39 [PATCH v2 0/7] Properly describe mt8167 watchdog and mmsys resets Luca Leonardo Scorcia
2026-07-17 16:39 ` [PATCH v2 1/7] dt-bindings: reset: Add MT6589 toprgu reset IDs Luca Leonardo Scorcia
2026-07-17 17:04   ` sashiko-bot
2026-07-17 16:39 ` [PATCH v2 2/7] watchdog: mediatek: Add wdt/toprgu resets for MT6589 Luca Leonardo Scorcia
2026-07-17 17:30   ` sashiko-bot
2026-07-17 16:39 ` [PATCH v2 3/7] dt-bindings: watchdog: Add compatible for MediaTek mt8167 Luca Leonardo Scorcia
2026-07-17 17:39   ` sashiko-bot
2026-07-17 16:39 ` [PATCH v2 4/7] dt-bindings: reset: Add reset controller constants for mt8167 Luca Leonardo Scorcia
2026-07-17 17:50   ` sashiko-bot
2026-07-17 16:39 ` [PATCH v2 5/7] watchdog: mediatek: Add support for mt8167 TOPRGU/WDT Luca Leonardo Scorcia
2026-07-17 16:39 ` [PATCH v2 6/7] arm64: dts: mt8167: Properly describe the SoC watchdog Luca Leonardo Scorcia
2026-07-17 16:39 ` Luca Leonardo Scorcia [this message]

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