diff mbox series

[v6,09/16] soc: mediatek: mmsys: modify reset controller for MT8195 vdosys1

Message ID 20211004062140.29803-10-nancy.lin@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Add MediaTek SoC DRM (vdosys1) support for mt8195 | expand

Commit Message

Nancy Lin (林欣螢) Oct. 4, 2021, 6:21 a.m. UTC 
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>
---
 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(-)

Comments

AngeloGioacchino Del Regno Oct. 14, 2021, 2:56 p.m. UTC | #1 
Il 04/10/21 08:21, Nancy.Lin ha scritto:
> 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>
> ---
>   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 648baaec112b..f67801c42fd9 100644
> --- a/drivers/soc/mediatek/mt8195-mmsys.h
> +++ b/drivers/soc/mediatek/mt8195-mmsys.h
> @@ -123,6 +123,7 @@
>   #define MT8195_VDO1_MIXER_SOUT_SEL_IN				0xf68
>   #define MT8195_MIXER_SOUT_SEL_IN_FROM_DISP_MIXER		(0 << 0)
>   
> +#define MT8195_VDO1_SW0_RST_B           0x1d0

All other definitions are indented with tabulations, but these are spaces here.
Please, do not mix formatting.

Regards,
- Angelo
Nancy Lin (林欣螢) Oct. 22, 2021, 7:05 a.m. UTC | #2 
Hi Angelo,

Thanks for the review.

On Thu, 2021-10-14 at 16:56 +0200, AngeloGioacchino Del Regno wrote:
> Il 04/10/21 08:21, Nancy.Lin ha scritto:
> > 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>
> > ---
> >   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 648baaec112b..f67801c42fd9 100644
> > --- a/drivers/soc/mediatek/mt8195-mmsys.h
> > +++ b/drivers/soc/mediatek/mt8195-mmsys.h
> > @@ -123,6 +123,7 @@
> >   #define MT8195_VDO1_MIXER_SOUT_SEL_IN				
> > 0xf68
> >   #define MT8195_MIXER_SOUT_SEL_IN_FROM_DISP_MIXER		(0 <<
> > 0)
> >   
> > +#define MT8195_VDO1_SW0_RST_B           0x1d0
> 
> All other definitions are indented with tabulations, but these are
> spaces here.
> Please, do not mix formatting.
> 
> Regards,
> - Angelo

OK, I will fix it.

Regards,
Nancy
diff mbox series

Patch

diff --git a/drivers/soc/mediatek/mt8195-mmsys.h b/drivers/soc/mediatek/mt8195-mmsys.h
index 648baaec112b..f67801c42fd9 100644
--- a/drivers/soc/mediatek/mt8195-mmsys.h
+++ b/drivers/soc/mediatek/mt8195-mmsys.h
@@ -123,6 +123,7 @@ 
 #define MT8195_VDO1_MIXER_SOUT_SEL_IN				0xf68
 #define MT8195_MIXER_SOUT_SEL_IN_FROM_DISP_MIXER		(0 << 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 7802c2239874..8a6556892e60 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -19,6 +19,8 @@ 
 #include "mt8192-mmsys.h"
 #include "mt8195-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 = {
@@ -133,19 +141,23 @@  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;
 	int i;
 
+	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);
 
@@ -241,10 +253,11 @@  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);
@@ -253,8 +266,6 @@  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;
 };
 
 /*