[RESEND v13 06/22] soc: mediatek: mmsys: modify reset controller for MT8195 vdosys1

Nancy.Lin
2022-03-08T09:35:37Z

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@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
drivers/soc/mediatek/mt8195-mmsys.h | 1 +
drivers/soc/mediatek/mtk-mmsys.c | 20 +++++++++++++++-----
drivers/soc/mediatek/mtk-mmsys.h | 1 +
3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h
index 8b7adbd22919..fafe7c639b52 100644
--- a/drivers/soc/mediatek/mt8195-mmsys.h
+++ b/drivers/soc/mediatek/mt8195-mmsys.h
@@ -139,6 +139,7 @@
#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 c686b17ca62f..f36e41b2df82 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -20,6 +20,8 @@
#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,
@@ -51,6 +53,7 @@ static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
.routes = mmsys_default_routing_table,
.num_routes = ARRAY_SIZE(mmsys_default_routing_table),
.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
+ .num_resets = 32,
};

static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
@@ -58,6 +61,7 @@ static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
.routes = mmsys_mt8183_routing_table,
.num_routes = ARRAY_SIZE(mmsys_mt8183_routing_table),
.sw0_rst_offset = MT8183_MMSYS_SW0_RST_B,
+ .num_resets = 32,
};

static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
@@ -65,6 +69,7 @@ static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
.routes = mmsys_mt8186_routing_table,
.num_routes = ARRAY_SIZE(mmsys_mt8186_routing_table),
.sw0_rst_offset = MT8186_MMSYS_SW0_RST_B,
+ .num_resets = 32,
};

static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
@@ -85,6 +90,8 @@ 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),
+ .sw0_rst_offset = MT8195_VDO1_SW0_RST_B,
+ .num_resets = 64,
};

static const struct mtk_mmsys_driver_data mt8365_mmsys_driver_data = {
@@ -143,18 +150,22 @@ 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->data->sw0_rst_offset);
+ reg = readl_relaxed(mmsys->regs + mmsys->data->sw0_rst_offset + offset);

if (assert)
reg &= ~BIT(id);
else
reg |= BIT(id);

- writel_relaxed(reg, mmsys->regs + mmsys->data->sw0_rst_offset);
+ writel_relaxed(reg, mmsys->regs + mmsys->data->sw0_rst_offset + offset);

spin_unlock_irqrestore(&mmsys->lock, flags);

@@ -250,10 +261,11 @@ 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);
@@ -262,8 +274,6 @@ 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 78c7069bac0e..013639e34617 100644
--- a/drivers/soc/mediatek/mtk-mmsys.h
+++ b/drivers/soc/mediatek/mtk-mmsys.h
@@ -99,6 +99,7 @@ struct mtk_mmsys_driver_data {
const struct mtk_mmsys_routes *routes;
const unsigned int num_routes;
const u16 sw0_rst_offset;
+ const u32 num_resets;
const struct mtk_mmsys_config *config;
const unsigned int num_configs;
};
--
2.18.0