diff mbox series

[1/2] soc: mediatek: mmsys: add sw0_rst_offset in mmsys driver data

Message ID 20220215131952.27861-2-rex-bc.chen@mediatek.com (mailing list archive)
State New, archived
Headers show
Series Add mmsys reset control for MT8186 | expand

Commit Message

Rex-BC Chen (陳柏辰) Feb. 15, 2022, 1:19 p.m. UTC
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@mediatek.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(-)

Comments

AngeloGioacchino Del Regno Feb. 15, 2022, 1:54 p.m. UTC | #1
Il 15/02/22 14:19, Rex-BC Chen ha scritto:
> 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@mediatek.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..83320019b4cf 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 unsigned int sw0_rst_offset;

I don't think that this offset will ever be larger than 0xffff.
Can we use u16 here instead?

>   };
>   
>   /*
Rex-BC Chen (陳柏辰) Feb. 16, 2022, 1:39 a.m. UTC | #2
Hello Angelo,

Thanks for yor review.
I add reply comment below:

On Tue, 2022-02-15 at 14:54 +0100, AngeloGioacchino Del Regno wrote:
> Il 15/02/22 14:19, Rex-BC Chen ha scritto:
> > 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@mediatek.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..83320019b4cf 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 unsigned int sw0_rst_offset;
> 
> I don't think that this offset will ever be larger than 0xffff.
> Can we use u16 here instead?
> 
Yes, the value of offset is enough using u16.
I will modify this in next version.

BRs,
Rex
> >   };
> >   
> >   /*
> 
> 
>
diff mbox series

Patch

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..83320019b4cf 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 unsigned int sw0_rst_offset;
 };
 
 /*