linux-kernel - [PATCH v2,1/2] soc: mediatek: mmsys: add sw0_rst

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Message-ID: <20220217082626.15728-2-rex-bc.chen@mediatek.com>
Date:   Thu, 17 Feb 2022 16:26:25 +0800
From:   Rex-BC Chen <rex-bc.chen@...iatek.com>
To:     <matthias.bgg@...il.com>
CC:     <chunkuang.hu@...nel.org>, <jitao.shi@...iatek.com>,
        <xinlei.lee@...iatek.com>,
        <angelogioacchino.delregno@...labora.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        Rex-BC Chen <rex-bc.chen@...iatek.com>
Subject: [PATCH v2,1/2] soc: mediatek: mmsys: add sw0_rst_offset in mmsys driver data

There are different software reset registers for difference MTK SoCs.
Therefore, we add a new variable "sw0_rst_offset" to control it.

Signed-off-by: Rex-BC Chen <rex-bc.chen@...iatek.com>
---
 drivers/soc/mediatek/mt8183-mmsys.h | 2 ++
 drivers/soc/mediatek/mtk-mmsys.c    | 6 ++++--
 drivers/soc/mediatek/mtk-mmsys.h    | 3 +--
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/mediatek/mt8183-mmsys.h b/drivers/soc/mediatek/mt8183-mmsys.h
index 9dee485807c9..0c021f4b76d2 100644
--- a/drivers/soc/mediatek/mt8183-mmsys.h
+++ b/drivers/soc/mediatek/mt8183-mmsys.h
@@ -25,6 +25,8 @@
 #define MT8183_RDMA0_SOUT_COLOR0		0x1
 #define MT8183_RDMA1_SOUT_DSI0			0x1
 
+#define MT8183_MMSYS_SW0_RST_B			0x140
+
 static const struct mtk_mmsys_routes mmsys_mt8183_routing_table[] = {
 	{
 		DDP_COMPONENT_OVL0, DDP_COMPONENT_OVL_2L0,
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 0da25069ffb3..cab62c3eac05 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -49,12 +49,14 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
 	.clk_driver = "clk-mt8173-mm",
 	.routes = mmsys_default_routing_table,
 	.num_routes = ARRAY_SIZE(mmsys_default_routing_table),
+	.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
 };
 
 static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
 	.clk_driver = "clk-mt8183-mm",
 	.routes = mmsys_mt8183_routing_table,
 	.num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table),
+	.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
 };
 
 static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
@@ -128,14 +130,14 @@ static int mtk_mmsys_reset_update(struct reset_controller_dev *rcdev, unsigned l
 
 	spin_lock_irqsave(&mmsys->lock, flags);
 
-	reg = readl_relaxed(mmsys->regs + MMSYS_SW0_RST_B);
+	reg = readl_relaxed(mmsys->regs + mmsys->data->sw0_rst_offset);
 
 	if (assert)
 		reg &= ~BIT(id);
 	else
 		reg |= BIT(id);
 
-	writel_relaxed(reg, mmsys->regs + MMSYS_SW0_RST_B);
+	writel_relaxed(reg, mmsys->regs + mmsys->data->sw0_rst_offset);
 
 	spin_unlock_irqrestore(&mmsys->lock, flags);
 
diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h
index 8b0ed05117ea..77f37f8c715b 100644
--- a/drivers/soc/mediatek/mtk-mmsys.h
+++ b/drivers/soc/mediatek/mtk-mmsys.h
@@ -78,8 +78,6 @@
 #define DSI_SEL_IN_RDMA				0x1
 #define DSI_SEL_IN_MASK				0x1
 
-#define MMSYS_SW0_RST_B				0x140
-
 struct mtk_mmsys_routes {
 	u32 from_comp;
 	u32 to_comp;
@@ -92,6 +90,7 @@ struct mtk_mmsys_driver_data {
 	const char *clk_driver;
 	const struct mtk_mmsys_routes *routes;
 	const unsigned int num_routes;
+	const u16 sw0_rst_offset;
 };
 
 /*
-- 
2.18.0