[PATCH v17 07/21] soc: mediatek: mmsys: modify reset controller for MT8195 vdosys1
Nancy.Lin
nancy.lin at mediatek.com
Fri Apr 15 19:07:35 PDT 2022
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>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
---
drivers/soc/mediatek/mt8195-mmsys.h | 1 +
drivers/soc/mediatek/mtk-mmsys.c | 39 ++++++++++++++++++-----------
drivers/soc/mediatek/mtk-mmsys.h | 1 +
3 files changed, 27 insertions(+), 14 deletions(-)
diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h
index 5469073e3073..0a286fa5a824 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_HDRBE_ASYNC_CFG_WD 0xe70
#define MT8195_VDO1_HDR_TOP_CFG 0xd00
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index ea04aa2c3840..d7c806f9e494 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,
@@ -86,6 +88,7 @@ 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_match_data mt8173_mmsys_match_data = {
@@ -100,6 +103,7 @@ 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_match_data mt8183_mmsys_match_data = {
@@ -114,6 +118,7 @@ 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_match_data mt8186_mmsys_match_data = {
@@ -148,6 +153,8 @@ static const struct mtk_mmsys_driver_data mt8195_vdosys1_driver_data = {
.clk_driver = "clk-mt8195-vdo1",
.routes = mmsys_mt8195_routing_table,
.num_routes = ARRAY_SIZE(mmsys_mt8195_routing_table),
+ .sw0_rst_offset = MT8195_VDO1_SW0_RST_B,
+ .num_resets = 64,
};
static const struct mtk_mmsys_match_data mt8195_mmsys_match_data = {
@@ -234,18 +241,22 @@ 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);
@@ -360,18 +371,6 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
return ret;
}
- spin_lock_init(&mmsys->lock);
-
- mmsys->rcdev.owner = THIS_MODULE;
- mmsys->rcdev.nr_resets = 32;
- mmsys->rcdev.ops = &mtk_mmsys_reset_ops;
- mmsys->rcdev.of_node = pdev->dev.of_node;
- ret = devm_reset_controller_register(&pdev->dev, &mmsys->rcdev);
- if (ret) {
- dev_err(&pdev->dev, "Couldn't register mmsys reset controller: %d\n", ret);
- return ret;
- }
-
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "Couldn't get mmsys resource\n");
@@ -393,6 +392,18 @@ static int mtk_mmsys_probe(struct platform_device *pdev)
mmsys->data = match_data->drv_data[0];
}
+ spin_lock_init(&mmsys->lock);
+
+ mmsys->rcdev.owner = THIS_MODULE;
+ 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);
+ if (ret) {
+ dev_err(&pdev->dev, "Couldn't register mmsys reset controller: %d\n", ret);
+ return ret;
+ }
+
#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 21cf300ba864..cbbffaf344c6 100644
--- a/drivers/soc/mediatek/mtk-mmsys.h
+++ b/drivers/soc/mediatek/mtk-mmsys.h
@@ -92,6 +92,7 @@ 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;
};
struct mtk_mmsys_match_data {
--
2.18.0
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