[PATCH v10 08/22] soc: mediatek: mmsys: modify reset controller for MT8195 vdosys1
Nancy.Lin
nancy.lin at mediatek.com
Tue Dec 7 18:44:12 PST 2021
MT8195 vdosys1 has more than 32 reset bits and a different reset base
than other chips. Modify mmsys for support 64 bit and different reset
base.
Signed-off-by: Nancy.Lin <nancy.lin at mediatek.com>
---
drivers/soc/mediatek/mt8195-mmsys.h | 1 +
drivers/soc/mediatek/mtk-mmsys.c | 21 ++++++++++++++++-----
drivers/soc/mediatek/mtk-mmsys.h | 2 ++
3 files changed, 19 insertions(+), 5 deletions(-)
diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h
index 11ba79e3275e..628098260f61 100644
--- a/drivers/soc/mediatek/mt8195-mmsys.h
+++ b/drivers/soc/mediatek/mt8195-mmsys.h
@@ -229,6 +229,7 @@
#define MT8195_VDO1_MIXER_SOUT_SEL_IN 0xf68
#define MT8195_MIXER_SOUT_SEL_IN_FROM_DISP_MIXER 0
+#define MT8195_VDO1_SW0_RST_B 0x1d0
#define MT8195_VDO1_MERGE0_ASYNC_CFG_WD 0xe30
#define MT8195_VDO1_MERGE1_ASYNC_CFG_WD 0xe40
#define MT8195_VDO1_MERGE2_ASYNC_CFG_WD 0xe50
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 1b0024ee47a9..3f85171c980e 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -19,6 +19,8 @@
#include "mt8195-mmsys.h"
#include "mt8365-mmsys.h"
+#define MMSYS_SW_RESET_PER_REG 32
+
static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
.clk_driver = "clk-mt2701-mm",
.routes = mmsys_default_routing_table,
@@ -49,12 +51,16 @@ 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),
+ .sw_reset_start = MMSYS_SW0_RST_B,
+ .num_resets = 32,
};
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),
+ .sw_reset_start = MMSYS_SW0_RST_B,
+ .num_resets = 32,
};
static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
@@ -75,6 +81,8 @@ static const struct mtk_mmsys_driver_data mt8195_vdosys1_driver_data = {
.num_routes = ARRAY_SIZE(mmsys_mt8195_routing_table),
.config = mmsys_mt8195_config_table,
.num_configs = ARRAY_SIZE(mmsys_mt8195_config_table),
+ .sw_reset_start = MT8195_VDO1_SW0_RST_B,
+ .num_resets = 64,
};
static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data = {
@@ -133,18 +141,22 @@ static int mtk_mmsys_reset_update(struct reset_controller_dev *rcdev, unsigned l
{
struct mtk_mmsys *mmsys = container_of(rcdev, struct mtk_mmsys, rcdev);
unsigned long flags;
+ u32 offset;
u32 reg;
+ offset = (id / MMSYS_SW_RESET_PER_REG) * sizeof(u32);
+ id = id % MMSYS_SW_RESET_PER_REG;
+
spin_lock_irqsave(&mmsys->lock, flags);
- reg = readl_relaxed(mmsys->regs + MMSYS_SW0_RST_B);
+ reg = readl_relaxed(mmsys->regs + mmsys->data->sw_reset_start + 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->sw_reset_start + offset);
spin_unlock_irqrestore(&mmsys->lock, flags);
@@ -240,10 +252,11 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
return ret;
}
+ mmsys->data = of_device_get_match_data(&pdev->dev);
spin_lock_init(&mmsys->lock);
mmsys->rcdev.owner = THIS_MODULE;
- mmsys->rcdev.nr_resets = 32;
+ mmsys->rcdev.nr_resets = mmsys->data->num_resets;
mmsys->rcdev.ops = &mtk_mmsys_reset_ops;
mmsys->rcdev.of_node = pdev->dev.of_node;
ret = devm_reset_controller_register(&pdev->dev, &mmsys->rcdev);
@@ -252,8 +265,6 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
return ret;
}
- mmsys->data = of_device_get_match_data(&pdev->dev);
-
#if IS_REACHABLE(CONFIG_MTK_CMDQ)
ret = cmdq_dev_get_client_reg(dev, &mmsys->cmdq_base, 0);
if (ret)
diff --git a/drivers/soc/mediatek/mtk-mmsys.h b/drivers/soc/mediatek/mtk-mmsys.h
index 2694021435d2..4842102cd451 100644
--- a/drivers/soc/mediatek/mtk-mmsys.h
+++ b/drivers/soc/mediatek/mtk-mmsys.h
@@ -102,6 +102,8 @@ struct mtk_mmsys_driver_data {
const unsigned int num_routes;
const struct mtk_mmsys_config *config;
const unsigned int num_configs;
+ u32 sw_reset_start;
+ u32 num_resets;
};
/*
--
2.18.0
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