[PATCH v3 0/8] Add support for mediatek SOC MT2712

[PATCH v3 0/8] Add support for mediatek SOC MT2712

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch add support for the Mediatek MT2712 DISP subsystem.
MT2712 is base on MT8173, there are some difference as following:
MT2712 support three disp output(two ovl and one rdma)

Change in v3:
- Added patch for ddp component AAL1
- Added patch for ddp component OD1
- Added patch for ddp component PWM2
- Added patch to create third ddp path
- Rebase patch "support maximum 64 mutex mod" before
  "Add support for mediatek SOC MT2712"
- Rebase patch "add connection from OD1 to RDMA1" before
  "Add support for mediatek SOC MT2712"
- Remove two definition about RDMA0 and RDMA2
- Change the definition about mutex module from
  bitwise to index

Changes in v2:
- update dt-bindings for mt2712
- Added patch to connection from OD1 to RDMA1
- Added patch to support maximum 64 mutex mod
- rewrite mutex mod condition for reducing one byte
- Change the component name AAL/OD to AAL0/OD0 for naming consistency
- Move the compatible infomation about dpi to other patch which modify
  the dpi driver for mt2712


Stu Hsieh (8):
  drm/mediatek: update dt-bindings for mt2712
  drm/mediatek: support maximum 64 mutex mod
  drm/mediatek: add connection from OD1 to RDMA1
  drm/mediatek: add ddp component AAL1
  drm/mediatek: add ddp component OD1
  drm/mediatek: add ddp component PWM2
  drm/mediatek: Add support for mediatek SOC MT2712
  drm/mediatek: add third ddp path

 .../bindings/display/mediatek/mediatek,disp.txt    |   2 +-
 drivers/gpu/drm/mediatek/mtk_drm_ddp.c             | 124 +++++++++++++++------
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c        |   8 +-
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h        |   7 +-
 drivers/gpu/drm/mediatek/mtk_drm_drv.c             |  47 +++++++-
 drivers/gpu/drm/mediatek/mtk_drm_drv.h             |   7 +-
 6 files changed, 155 insertions(+), 40 deletions(-)

-- 
2.12.5

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[PATCH v3 1/8] drm/mediatek: update dt-bindings for mt2712

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

Update device tree binding documentation for the display subsystem for
Mediatek MT2712 SoCs.

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
index 383183a89164..8469de510001 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
@@ -40,7 +40,7 @@ Required properties (all function blocks):
 	"mediatek,<chip>-dpi"        - DPI controller, see mediatek,dpi.txt
 	"mediatek,<chip>-disp-mutex" - display mutex
 	"mediatek,<chip>-disp-od"    - overdrive
-  the supported chips are mt2701 and mt8173.
+  the supported chips are mt2701, mt2712 and mt8173.
 - reg: Physical base address and length of the function block register space
 - interrupts: The interrupt signal from the function block (required, except for
   merge and split function blocks).
-- 
2.12.5

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Re: [PATCH v3 1/8] drm/mediatek: update dt-bindings for mt2712

[CK Hu]

Hi, Stu:

On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> From: Stu Hsieh <stu.hsieh@mediatek.com>
> 
> Update device tree binding documentation for the display subsystem for
> Mediatek MT2712 SoCs.
> 

I've acked v2 of this patch and v3 is the same as v2, so you should keep
my ack in commit message.

Regards,
CK

> Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> ---
>  Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> index 383183a89164..8469de510001 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> @@ -40,7 +40,7 @@ Required properties (all function blocks):
>  	"mediatek,<chip>-dpi"        - DPI controller, see mediatek,dpi.txt
>  	"mediatek,<chip>-disp-mutex" - display mutex
>  	"mediatek,<chip>-disp-od"    - overdrive
> -  the supported chips are mt2701 and mt8173.
> +  the supported chips are mt2701, mt2712 and mt8173.
>  - reg: Physical base address and length of the function block register space
>  - interrupts: The interrupt signal from the function block (required, except for
>    merge and split function blocks).


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Re: [PATCH v3 1/8] drm/mediatek: update dt-bindings for mt2712

[Stu Hsieh]

Hi, CK:

On Fri, 2018-05-25 at 11:18 +0800, CK Hu wrote:
> Hi, Stu:
> 
> On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> > From: Stu Hsieh <stu.hsieh@mediatek.com>
> > 
> > Update device tree binding documentation for the display subsystem for
> > Mediatek MT2712 SoCs.
> > 
> 
> I've acked v2 of this patch and v3 is the same as v2, so you should keep
> my ack in commit message.
> 
> Regards,
> CK
OK

Regards,
Stu

> 
> > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > ---
> >  Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> > index 383183a89164..8469de510001 100644
> > --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> > +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> > @@ -40,7 +40,7 @@ Required properties (all function blocks):
> >  	"mediatek,<chip>-dpi"        - DPI controller, see mediatek,dpi.txt
> >  	"mediatek,<chip>-disp-mutex" - display mutex
> >  	"mediatek,<chip>-disp-od"    - overdrive
> > -  the supported chips are mt2701 and mt8173.
> > +  the supported chips are mt2701, mt2712 and mt8173.
> >  - reg: Physical base address and length of the function block register space
> >  - interrupts: The interrupt signal from the function block (required, except for
> >    merge and split function blocks).
> 
> 

[PATCH v3 2/8] drm/mediatek: support maximum 64 mutex mod

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch support that if modules more than 32,
add index more than 31 when using DISP_REG_MUTEX_MOD2 bit

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 75 +++++++++++++++++++++-------------
 1 file changed, 47 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 8130f3dab661..47ffa240bd25 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -41,31 +41,32 @@
 #define DISP_REG_MUTEX_RST(n)	(0x28 + 0x20 * (n))
 #define DISP_REG_MUTEX_MOD(n)	(0x2c + 0x20 * (n))
 #define DISP_REG_MUTEX_SOF(n)	(0x30 + 0x20 * (n))
+#define DISP_REG_MUTEX_MOD2(n)	(0x34 + 0x20 * (n))
 
 #define INT_MUTEX				BIT(1)
 
-#define MT8173_MUTEX_MOD_DISP_OVL0		BIT(11)
-#define MT8173_MUTEX_MOD_DISP_OVL1		BIT(12)
-#define MT8173_MUTEX_MOD_DISP_RDMA0		BIT(13)
-#define MT8173_MUTEX_MOD_DISP_RDMA1		BIT(14)
-#define MT8173_MUTEX_MOD_DISP_RDMA2		BIT(15)
-#define MT8173_MUTEX_MOD_DISP_WDMA0		BIT(16)
-#define MT8173_MUTEX_MOD_DISP_WDMA1		BIT(17)
-#define MT8173_MUTEX_MOD_DISP_COLOR0		BIT(18)
-#define MT8173_MUTEX_MOD_DISP_COLOR1		BIT(19)
-#define MT8173_MUTEX_MOD_DISP_AAL		BIT(20)
-#define MT8173_MUTEX_MOD_DISP_GAMMA		BIT(21)
-#define MT8173_MUTEX_MOD_DISP_UFOE		BIT(22)
-#define MT8173_MUTEX_MOD_DISP_PWM0		BIT(23)
-#define MT8173_MUTEX_MOD_DISP_PWM1		BIT(24)
-#define MT8173_MUTEX_MOD_DISP_OD		BIT(25)
-
-#define MT2701_MUTEX_MOD_DISP_OVL		BIT(3)
-#define MT2701_MUTEX_MOD_DISP_WDMA		BIT(6)
-#define MT2701_MUTEX_MOD_DISP_COLOR		BIT(7)
-#define MT2701_MUTEX_MOD_DISP_BLS		BIT(9)
-#define MT2701_MUTEX_MOD_DISP_RDMA0		BIT(10)
-#define MT2701_MUTEX_MOD_DISP_RDMA1		BIT(12)
+#define MT8173_MUTEX_MOD_DISP_OVL0		11
+#define MT8173_MUTEX_MOD_DISP_OVL1		12
+#define MT8173_MUTEX_MOD_DISP_RDMA0		13
+#define MT8173_MUTEX_MOD_DISP_RDMA1		14
+#define MT8173_MUTEX_MOD_DISP_RDMA2		15
+#define MT8173_MUTEX_MOD_DISP_WDMA0		16
+#define MT8173_MUTEX_MOD_DISP_WDMA1		17
+#define MT8173_MUTEX_MOD_DISP_COLOR0		18
+#define MT8173_MUTEX_MOD_DISP_COLOR1		19
+#define MT8173_MUTEX_MOD_DISP_AAL		20
+#define MT8173_MUTEX_MOD_DISP_GAMMA		21
+#define MT8173_MUTEX_MOD_DISP_UFOE		22
+#define MT8173_MUTEX_MOD_DISP_PWM0		23
+#define MT8173_MUTEX_MOD_DISP_PWM1		24
+#define MT8173_MUTEX_MOD_DISP_OD		25
+
+#define MT2701_MUTEX_MOD_DISP_OVL		3
+#define MT2701_MUTEX_MOD_DISP_WDMA		6
+#define MT2701_MUTEX_MOD_DISP_COLOR		7
+#define MT2701_MUTEX_MOD_DISP_BLS		9
+#define MT2701_MUTEX_MOD_DISP_RDMA0		10
+#define MT2701_MUTEX_MOD_DISP_RDMA1		12
 
 #define MUTEX_SOF_SINGLE_MODE		0
 #define MUTEX_SOF_DSI0			1
@@ -278,6 +279,7 @@ void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
 	struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
 					   mutex[mutex->id]);
 	unsigned int reg;
+	unsigned int offset;
 
 	WARN_ON(&ddp->mutex[mutex->id] != mutex);
 
@@ -292,9 +294,17 @@ void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
 		reg = MUTEX_SOF_DPI0;
 		break;
 	default:
-		reg = readl_relaxed(ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
-		reg |= ddp->mutex_mod[id];
-		writel_relaxed(reg, ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
+		if (ddp->mutex_mod[id] < 32) {
+			offset = DISP_REG_MUTEX_MOD(mutex->id);
+			reg = readl_relaxed(ddp->regs + offset);
+			reg |= 1 << ddp->mutex_mod[id];
+			writel_relaxed(reg, ddp->regs + offset);
+		} else {
+			offset = DISP_REG_MUTEX_MOD2(mutex->id);
+			reg = readl_relaxed(ddp->regs + offset);
+			reg |= 1 << (ddp->mutex_mod[id] - 32);
+			writel_relaxed(reg, ddp->regs + offset);
+		}
 		return;
 	}
 
@@ -307,6 +317,7 @@ void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
 	struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
 					   mutex[mutex->id]);
 	unsigned int reg;
+	unsigned int offset;
 
 	WARN_ON(&ddp->mutex[mutex->id] != mutex);
 
@@ -318,9 +329,17 @@ void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
 			       ddp->regs + DISP_REG_MUTEX_SOF(mutex->id));
 		break;
 	default:
-		reg = readl_relaxed(ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
-		reg &= ~(ddp->mutex_mod[id]);
-		writel_relaxed(reg, ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
+		if (ddp->mutex_mod[id] < 32) {
+			offset = DISP_REG_MUTEX_MOD(mutex->id);
+			reg = readl_relaxed(ddp->regs + offset);
+			reg &= ~(1 << ddp->mutex_mod[id]);
+			writel_relaxed(reg, ddp->regs + offset);
+		} else {
+			offset = DISP_REG_MUTEX_MOD2(mutex->id);
+			reg = readl_relaxed(ddp->regs + offset);
+			reg &= ~(1 << (ddp->mutex_mod[id] - 32));
+			writel_relaxed(reg, ddp->regs + offset);
+		}
 		break;
 	}
 }
-- 
2.12.5

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Re: [PATCH v3 2/8] drm/mediatek: support maximum 64 mutex mod

[CK Hu]

Hi, Stu:

On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> From: Stu Hsieh <stu.hsieh@mediatek.com>
> 
> This patch support that if modules more than 32,
> add index more than 31 when using DISP_REG_MUTEX_MOD2 bit
> 

Reviewed-by: CK Hu <ck.hu@mediatek.com>

> Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 75 +++++++++++++++++++++-------------
>  1 file changed, 47 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index 8130f3dab661..47ffa240bd25 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -41,31 +41,32 @@
>  #define DISP_REG_MUTEX_RST(n)	(0x28 + 0x20 * (n))
>  #define DISP_REG_MUTEX_MOD(n)	(0x2c + 0x20 * (n))
>  #define DISP_REG_MUTEX_SOF(n)	(0x30 + 0x20 * (n))
> +#define DISP_REG_MUTEX_MOD2(n)	(0x34 + 0x20 * (n))
>  
>  #define INT_MUTEX				BIT(1)
>  
> -#define MT8173_MUTEX_MOD_DISP_OVL0		BIT(11)
> -#define MT8173_MUTEX_MOD_DISP_OVL1		BIT(12)
> -#define MT8173_MUTEX_MOD_DISP_RDMA0		BIT(13)
> -#define MT8173_MUTEX_MOD_DISP_RDMA1		BIT(14)
> -#define MT8173_MUTEX_MOD_DISP_RDMA2		BIT(15)
> -#define MT8173_MUTEX_MOD_DISP_WDMA0		BIT(16)
> -#define MT8173_MUTEX_MOD_DISP_WDMA1		BIT(17)
> -#define MT8173_MUTEX_MOD_DISP_COLOR0		BIT(18)
> -#define MT8173_MUTEX_MOD_DISP_COLOR1		BIT(19)
> -#define MT8173_MUTEX_MOD_DISP_AAL		BIT(20)
> -#define MT8173_MUTEX_MOD_DISP_GAMMA		BIT(21)
> -#define MT8173_MUTEX_MOD_DISP_UFOE		BIT(22)
> -#define MT8173_MUTEX_MOD_DISP_PWM0		BIT(23)
> -#define MT8173_MUTEX_MOD_DISP_PWM1		BIT(24)
> -#define MT8173_MUTEX_MOD_DISP_OD		BIT(25)
> -
> -#define MT2701_MUTEX_MOD_DISP_OVL		BIT(3)
> -#define MT2701_MUTEX_MOD_DISP_WDMA		BIT(6)
> -#define MT2701_MUTEX_MOD_DISP_COLOR		BIT(7)
> -#define MT2701_MUTEX_MOD_DISP_BLS		BIT(9)
> -#define MT2701_MUTEX_MOD_DISP_RDMA0		BIT(10)
> -#define MT2701_MUTEX_MOD_DISP_RDMA1		BIT(12)
> +#define MT8173_MUTEX_MOD_DISP_OVL0		11
> +#define MT8173_MUTEX_MOD_DISP_OVL1		12
> +#define MT8173_MUTEX_MOD_DISP_RDMA0		13
> +#define MT8173_MUTEX_MOD_DISP_RDMA1		14
> +#define MT8173_MUTEX_MOD_DISP_RDMA2		15
> +#define MT8173_MUTEX_MOD_DISP_WDMA0		16
> +#define MT8173_MUTEX_MOD_DISP_WDMA1		17
> +#define MT8173_MUTEX_MOD_DISP_COLOR0		18
> +#define MT8173_MUTEX_MOD_DISP_COLOR1		19
> +#define MT8173_MUTEX_MOD_DISP_AAL		20
> +#define MT8173_MUTEX_MOD_DISP_GAMMA		21
> +#define MT8173_MUTEX_MOD_DISP_UFOE		22
> +#define MT8173_MUTEX_MOD_DISP_PWM0		23
> +#define MT8173_MUTEX_MOD_DISP_PWM1		24
> +#define MT8173_MUTEX_MOD_DISP_OD		25
> +
> +#define MT2701_MUTEX_MOD_DISP_OVL		3
> +#define MT2701_MUTEX_MOD_DISP_WDMA		6
> +#define MT2701_MUTEX_MOD_DISP_COLOR		7
> +#define MT2701_MUTEX_MOD_DISP_BLS		9
> +#define MT2701_MUTEX_MOD_DISP_RDMA0		10
> +#define MT2701_MUTEX_MOD_DISP_RDMA1		12
>  
>  #define MUTEX_SOF_SINGLE_MODE		0
>  #define MUTEX_SOF_DSI0			1
> @@ -278,6 +279,7 @@ void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
>  	struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
>  					   mutex[mutex->id]);
>  	unsigned int reg;
> +	unsigned int offset;
>  
>  	WARN_ON(&ddp->mutex[mutex->id] != mutex);
>  
> @@ -292,9 +294,17 @@ void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
>  		reg = MUTEX_SOF_DPI0;
>  		break;
>  	default:
> -		reg = readl_relaxed(ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
> -		reg |= ddp->mutex_mod[id];
> -		writel_relaxed(reg, ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
> +		if (ddp->mutex_mod[id] < 32) {
> +			offset = DISP_REG_MUTEX_MOD(mutex->id);
> +			reg = readl_relaxed(ddp->regs + offset);
> +			reg |= 1 << ddp->mutex_mod[id];
> +			writel_relaxed(reg, ddp->regs + offset);
> +		} else {
> +			offset = DISP_REG_MUTEX_MOD2(mutex->id);
> +			reg = readl_relaxed(ddp->regs + offset);
> +			reg |= 1 << (ddp->mutex_mod[id] - 32);
> +			writel_relaxed(reg, ddp->regs + offset);
> +		}
>  		return;
>  	}
>  
> @@ -307,6 +317,7 @@ void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
>  	struct mtk_ddp *ddp = container_of(mutex, struct mtk_ddp,
>  					   mutex[mutex->id]);
>  	unsigned int reg;
> +	unsigned int offset;
>  
>  	WARN_ON(&ddp->mutex[mutex->id] != mutex);
>  
> @@ -318,9 +329,17 @@ void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
>  			       ddp->regs + DISP_REG_MUTEX_SOF(mutex->id));
>  		break;
>  	default:
> -		reg = readl_relaxed(ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
> -		reg &= ~(ddp->mutex_mod[id]);
> -		writel_relaxed(reg, ddp->regs + DISP_REG_MUTEX_MOD(mutex->id));
> +		if (ddp->mutex_mod[id] < 32) {
> +			offset = DISP_REG_MUTEX_MOD(mutex->id);
> +			reg = readl_relaxed(ddp->regs + offset);
> +			reg &= ~(1 << ddp->mutex_mod[id]);
> +			writel_relaxed(reg, ddp->regs + offset);
> +		} else {
> +			offset = DISP_REG_MUTEX_MOD2(mutex->id);
> +			reg = readl_relaxed(ddp->regs + offset);
> +			reg &= ~(1 << (ddp->mutex_mod[id] - 32));
> +			writel_relaxed(reg, ddp->regs + offset);
> +		}
>  		break;
>  	}
>  }


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[PATCH v3 3/8] drm/mediatek: add connection from OD1 to RDMA1

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch add the connection from OD1 to RDMA1 for ext path.

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 47ffa240bd25..0f568dd853d8 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -151,6 +151,9 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
 	} else if (cur == DDP_COMPONENT_GAMMA && next == DDP_COMPONENT_RDMA1) {
 		*addr = DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN;
 		value = GAMMA_MOUT_EN_RDMA1;
+	} else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) {
+		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
+		value = OD1_MOUT_EN_RDMA1;
 	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
 		*addr = DISP_REG_CONFIG_DISP_RDMA1_MOUT_EN;
 		value = RDMA1_MOUT_DPI0;
-- 
2.12.5

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Re: [PATCH v3 3/8] drm/mediatek: add connection from OD1 to RDMA1

[CK Hu]

Hi, Stu:

On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> From: Stu Hsieh <stu.hsieh@mediatek.com>
> 
> This patch add the connection from OD1 to RDMA1 for ext path.
> 

Reviewed-by: CK Hu <ck.hu@mediatek.com>

> Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index 47ffa240bd25..0f568dd853d8 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -151,6 +151,9 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
>  	} else if (cur == DDP_COMPONENT_GAMMA && next == DDP_COMPONENT_RDMA1) {
>  		*addr = DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN;
>  		value = GAMMA_MOUT_EN_RDMA1;
> +	} else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) {
> +		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
> +		value = OD1_MOUT_EN_RDMA1;
>  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
>  		*addr = DISP_REG_CONFIG_DISP_RDMA1_MOUT_EN;
>  		value = RDMA1_MOUT_DPI0;


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Re: [PATCH v3 3/8] drm/mediatek: add connection from OD1 to RDMA1

[Stu Hsieh]

Hi, CK:

For this patch, I would move it after "add ddp component OD1"
And add this line "#define OD1_MOUT_EN_RDMA1              BIT(16)" from
the path "Add support for mediatek SOC MT2712" to this patch

Regards,
Stu

On Fri, 2018-05-25 at 11:26 +0800, CK Hu wrote:
> Hi, Stu:
> 
> On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> > From: Stu Hsieh <stu.hsieh@mediatek.com>
> > 
> > This patch add the connection from OD1 to RDMA1 for ext path.
> > 
> 
> Reviewed-by: CK Hu <ck.hu@mediatek.com>
> 
> > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> > index 47ffa240bd25..0f568dd853d8 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> > @@ -151,6 +151,9 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
> >  	} else if (cur == DDP_COMPONENT_GAMMA && next == DDP_COMPONENT_RDMA1) {
> >  		*addr = DISP_REG_CONFIG_DISP_GAMMA_MOUT_EN;
> >  		value = GAMMA_MOUT_EN_RDMA1;
> > +	} else if (cur == DDP_COMPONENT_OD1 && next == DDP_COMPONENT_RDMA1) {
> > +		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
> > +		value = OD1_MOUT_EN_RDMA1;
> >  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
> >  		*addr = DISP_REG_CONFIG_DISP_RDMA1_MOUT_EN;
> >  		value = RDMA1_MOUT_DPI0;
> 
> 


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[PATCH v3 4/8] drm/mediatek: add ddp component AAL1

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch add component AAL1 and
rename AAL to AAL0

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 0828cf8bf85c..eee3c0cc2632 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -41,7 +41,8 @@ enum mtk_ddp_comp_type {
 };
 
 enum mtk_ddp_comp_id {
-	DDP_COMPONENT_AAL,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_AAL1,
 	DDP_COMPONENT_BLS,
 	DDP_COMPONENT_COLOR0,
 	DDP_COMPONENT_COLOR1,
-- 
2.12.5

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Re: [PATCH v3 4/8] drm/mediatek: add ddp component AAL1

[CK Hu]

Hi, Stu:

On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> From: Stu Hsieh <stu.hsieh@mediatek.com>
> 
> This patch add component AAL1 and
> rename AAL to AAL0
> 
> Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> index 0828cf8bf85c..eee3c0cc2632 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> @@ -41,7 +41,8 @@ enum mtk_ddp_comp_type {
>  };
>  
>  enum mtk_ddp_comp_id {
> -	DDP_COMPONENT_AAL,
> +	DDP_COMPONENT_AAL0,
> +	DDP_COMPONENT_AAL1,

Be sure compiling is success when you apply each patch of a series. I
think when you apply to this patch, it would cause compiling error
because some related modification is in the patch 'Add support for
mediatek SOC MT2712'. So move the modification from that patch to this
patch.

Regards,
CK

>  	DDP_COMPONENT_BLS,
>  	DDP_COMPONENT_COLOR0,
>  	DDP_COMPONENT_COLOR1,


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Re: [PATCH v3 4/8] drm/mediatek: add ddp component AAL1

[Stu Hsieh]

Hi. CK:

On Fri, 2018-05-25 at 12:23 +0800, CK Hu wrote:
> Hi, Stu:
> 
> On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> > From: Stu Hsieh <stu.hsieh@mediatek.com>
> > 
> > This patch add component AAL1 and
> > rename AAL to AAL0
> > 
> > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > index 0828cf8bf85c..eee3c0cc2632 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > @@ -41,7 +41,8 @@ enum mtk_ddp_comp_type {
> >  };
> >  
> >  enum mtk_ddp_comp_id {
> > -	DDP_COMPONENT_AAL,
> > +	DDP_COMPONENT_AAL0,
> > +	DDP_COMPONENT_AAL1,
> 
> Be sure compiling is success when you apply each patch of a series. I
> think when you apply to this patch, it would cause compiling error
> because some related modification is in the patch 'Add support for
> mediatek SOC MT2712'. So move the modification from that patch to this
> patch.
> 
> Regards,
> CK
I would move some modification related some component to associated
patch from the patch 'Add support for mediatek SOC MT2712'

Regards,
Stu

> 
> >  	DDP_COMPONENT_BLS,
> >  	DDP_COMPONENT_COLOR0,
> >  	DDP_COMPONENT_COLOR1,
> 
> 

[PATCH v3 5/8] drm/mediatek: add ddp component OD1

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch add the component OD1 and
rename the OD to OD1

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index eee3c0cc2632..9b19fc4423f1 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -50,7 +50,8 @@ enum mtk_ddp_comp_id {
 	DDP_COMPONENT_DSI0,
 	DDP_COMPONENT_DSI1,
 	DDP_COMPONENT_GAMMA,
-	DDP_COMPONENT_OD,
+	DDP_COMPONENT_OD0,
+	DDP_COMPONENT_OD1,
 	DDP_COMPONENT_OVL0,
 	DDP_COMPONENT_OVL1,
 	DDP_COMPONENT_PWM0,
-- 
2.12.5

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[PATCH v3 6/8] drm/mediatek: add ddp component PWM2

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch add component PWM2

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 9b19fc4423f1..e00c2e798abd 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -56,6 +56,7 @@ enum mtk_ddp_comp_id {
 	DDP_COMPONENT_OVL1,
 	DDP_COMPONENT_PWM0,
 	DDP_COMPONENT_PWM1,
+	DDP_COMPONENT_PWM2,
 	DDP_COMPONENT_RDMA0,
 	DDP_COMPONENT_RDMA1,
 	DDP_COMPONENT_RDMA2,
-- 
2.12.5

[PATCH v3 7/8] drm/mediatek: Add support for mediatek SOC MT2712

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch add support for the Mediatek MT2712 DISP subsystem.
There are two OVL engine and three disp output in MT2712.

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp.c      | 46 +++++++++++++++++++++++++++--
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  8 +++--
 drivers/gpu/drm/mediatek/mtk_drm_drv.c      | 42 ++++++++++++++++++++++++--
 drivers/gpu/drm/mediatek/mtk_drm_drv.h      |  7 +++--
 4 files changed, 94 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 0f568dd853d8..676726249ae0 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -61,6 +61,24 @@
 #define MT8173_MUTEX_MOD_DISP_PWM1		24
 #define MT8173_MUTEX_MOD_DISP_OD		25
 
+#define MT2712_MUTEX_MOD_DISP_OVL0		11
+#define MT2712_MUTEX_MOD_DISP_OVL1		12
+#define MT2712_MUTEX_MOD_DISP_RDMA0		13
+#define MT2712_MUTEX_MOD_DISP_RDMA1		14
+#define MT2712_MUTEX_MOD_DISP_RDMA2		15
+#define MT2712_MUTEX_MOD_DISP_WDMA0		16
+#define MT2712_MUTEX_MOD_DISP_WDMA1		17
+#define MT2712_MUTEX_MOD_DISP_COLOR0		18
+#define MT2712_MUTEX_MOD_DISP_COLOR1		19
+#define MT2712_MUTEX_MOD_DISP_AAL0		20
+#define MT2712_MUTEX_MOD_DISP_UFOE		22
+#define MT2712_MUTEX_MOD_DISP_PWM0		23
+#define MT2712_MUTEX_MOD_DISP_PWM1		24
+#define MT2712_MUTEX_MOD_DISP_PWM2		10
+#define MT2712_MUTEX_MOD_DISP_OD0		25
+#define MT2712_MUTEX_MOD2_DISP_AAL1		33
+#define MT2712_MUTEX_MOD2_DISP_OD1		34
+
 #define MT2701_MUTEX_MOD_DISP_OVL		3
 #define MT2701_MUTEX_MOD_DISP_WDMA		6
 #define MT2701_MUTEX_MOD_DISP_COLOR		7
@@ -75,6 +93,7 @@
 
 #define OVL0_MOUT_EN_COLOR0		0x1
 #define OD_MOUT_EN_RDMA0		0x1
+#define OD1_MOUT_EN_RDMA1		BIT(16)
 #define UFOE_MOUT_EN_DSI0		0x1
 #define COLOR0_SEL_IN_OVL0		0x1
 #define OVL1_MOUT_EN_COLOR1		0x1
@@ -109,12 +128,32 @@ static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_WDMA0] = MT2701_MUTEX_MOD_DISP_WDMA,
 };
 
+static const unsigned int mt2712_mutex_mod[DDP_COMPONENT_ID_MAX] = {
+	[DDP_COMPONENT_AAL0] = MT2712_MUTEX_MOD_DISP_AAL0,
+	[DDP_COMPONENT_AAL1] = MT2712_MUTEX_MOD2_DISP_AAL1,
+	[DDP_COMPONENT_COLOR0] = MT2712_MUTEX_MOD_DISP_COLOR0,
+	[DDP_COMPONENT_COLOR1] = MT2712_MUTEX_MOD_DISP_COLOR1,
+	[DDP_COMPONENT_OD0] = MT2712_MUTEX_MOD_DISP_OD0,
+	[DDP_COMPONENT_OD1] = MT2712_MUTEX_MOD2_DISP_OD1,
+	[DDP_COMPONENT_OVL0] = MT2712_MUTEX_MOD_DISP_OVL0,
+	[DDP_COMPONENT_OVL1] = MT2712_MUTEX_MOD_DISP_OVL1,
+	[DDP_COMPONENT_PWM0] = MT2712_MUTEX_MOD_DISP_PWM0,
+	[DDP_COMPONENT_PWM1] = MT2712_MUTEX_MOD_DISP_PWM1,
+	[DDP_COMPONENT_PWM2] = MT2712_MUTEX_MOD_DISP_PWM2,
+	[DDP_COMPONENT_RDMA0] = MT2712_MUTEX_MOD_DISP_RDMA0,
+	[DDP_COMPONENT_RDMA1] = MT2712_MUTEX_MOD_DISP_RDMA1,
+	[DDP_COMPONENT_RDMA2] = MT2712_MUTEX_MOD_DISP_RDMA2,
+	[DDP_COMPONENT_UFOE] = MT2712_MUTEX_MOD_DISP_UFOE,
+	[DDP_COMPONENT_WDMA0] = MT2712_MUTEX_MOD_DISP_WDMA0,
+	[DDP_COMPONENT_WDMA1] = MT2712_MUTEX_MOD_DISP_WDMA1,
+};
+
 static const unsigned int mt8173_mutex_mod[DDP_COMPONENT_ID_MAX] = {
-	[DDP_COMPONENT_AAL] = MT8173_MUTEX_MOD_DISP_AAL,
+	[DDP_COMPONENT_AAL0] = MT8173_MUTEX_MOD_DISP_AAL,
 	[DDP_COMPONENT_COLOR0] = MT8173_MUTEX_MOD_DISP_COLOR0,
 	[DDP_COMPONENT_COLOR1] = MT8173_MUTEX_MOD_DISP_COLOR1,
 	[DDP_COMPONENT_GAMMA] = MT8173_MUTEX_MOD_DISP_GAMMA,
-	[DDP_COMPONENT_OD] = MT8173_MUTEX_MOD_DISP_OD,
+	[DDP_COMPONENT_OD0] = MT8173_MUTEX_MOD_DISP_OD,
 	[DDP_COMPONENT_OVL0] = MT8173_MUTEX_MOD_DISP_OVL0,
 	[DDP_COMPONENT_OVL1] = MT8173_MUTEX_MOD_DISP_OVL1,
 	[DDP_COMPONENT_PWM0] = MT8173_MUTEX_MOD_DISP_PWM0,
@@ -139,7 +178,7 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
 	} else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) {
 		*addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN;
 		value = OVL_MOUT_EN_RDMA;
-	} else if (cur == DDP_COMPONENT_OD && next == DDP_COMPONENT_RDMA0) {
+	} else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) {
 		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
 		value = OD_MOUT_EN_RDMA0;
 	} else if (cur == DDP_COMPONENT_UFOE && next == DDP_COMPONENT_DSI0) {
@@ -429,6 +468,7 @@ static int mtk_ddp_remove(struct platform_device *pdev)
 
 static const struct of_device_id ddp_driver_dt_match[] = {
 	{ .compatible = "mediatek,mt2701-disp-mutex", .data = mt2701_mutex_mod},
+	{ .compatible = "mediatek,mt2712-disp-mutex", .data = mt2712_mutex_mod},
 	{ .compatible = "mediatek,mt8173-disp-mutex", .data = mt8173_mutex_mod},
 	{},
 };
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 4672317e3ad1..86e8c9e5df41 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -218,7 +218,8 @@ struct mtk_ddp_comp_match {
 };
 
 static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
-	[DDP_COMPONENT_AAL]	= { MTK_DISP_AAL,	0, &ddp_aal },
+	[DDP_COMPONENT_AAL0]	= { MTK_DISP_AAL,	0, &ddp_aal },
+	[DDP_COMPONENT_AAL1]	= { MTK_DISP_AAL,	1, &ddp_aal },
 	[DDP_COMPONENT_BLS]	= { MTK_DISP_BLS,	0, NULL },
 	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, NULL },
 	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, NULL },
@@ -226,10 +227,13 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
 	[DDP_COMPONENT_DSI0]	= { MTK_DSI,		0, NULL },
 	[DDP_COMPONENT_DSI1]	= { MTK_DSI,		1, NULL },
 	[DDP_COMPONENT_GAMMA]	= { MTK_DISP_GAMMA,	0, &ddp_gamma },
-	[DDP_COMPONENT_OD]	= { MTK_DISP_OD,	0, &ddp_od },
+	[DDP_COMPONENT_OD0]	= { MTK_DISP_OD,	0, &ddp_od },
+	[DDP_COMPONENT_OD1]	= { MTK_DISP_OD,	1, &ddp_od },
 	[DDP_COMPONENT_OVL0]	= { MTK_DISP_OVL,	0, NULL },
 	[DDP_COMPONENT_OVL1]	= { MTK_DISP_OVL,	1, NULL },
 	[DDP_COMPONENT_PWM0]	= { MTK_DISP_PWM,	0, NULL },
+	[DDP_COMPONENT_PWM1]	= { MTK_DISP_PWM,	1, NULL },
+	[DDP_COMPONENT_PWM2]	= { MTK_DISP_PWM,	2, NULL },
 	[DDP_COMPONENT_RDMA0]	= { MTK_DISP_RDMA,	0, NULL },
 	[DDP_COMPONENT_RDMA1]	= { MTK_DISP_RDMA,	1, NULL },
 	[DDP_COMPONENT_RDMA2]	= { MTK_DISP_RDMA,	2, NULL },
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index a2ca90fc403c..b32c4cc8d051 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -146,11 +146,37 @@ static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
 	DDP_COMPONENT_DPI0,
 };
 
+static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_OD0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_DPI0,
+	DDP_COMPONENT_PWM0,
+};
+
+static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
+	DDP_COMPONENT_OVL1,
+	DDP_COMPONENT_COLOR1,
+	DDP_COMPONENT_AAL1,
+	DDP_COMPONENT_OD1,
+	DDP_COMPONENT_RDMA1,
+	DDP_COMPONENT_DPI1,
+	DDP_COMPONENT_PWM1,
+};
+
+static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = {
+	DDP_COMPONENT_RDMA2,
+	DDP_COMPONENT_DSI2,
+	DDP_COMPONENT_PWM2,
+};
+
 static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
 	DDP_COMPONENT_OVL0,
 	DDP_COMPONENT_COLOR0,
-	DDP_COMPONENT_AAL,
-	DDP_COMPONENT_OD,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_OD0,
 	DDP_COMPONENT_RDMA0,
 	DDP_COMPONENT_UFOE,
 	DDP_COMPONENT_DSI0,
@@ -173,6 +199,15 @@ static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
 	.shadow_register = true,
 };
 
+static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
+	.main_path = mt2712_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
+	.ext_path = mt2712_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext),
+	.third_path = mt2712_mtk_ddp_third,
+	.third_len = ARRAY_SIZE(mt2712_mtk_ddp_third),
+};
+
 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
 	.main_path = mt8173_mtk_ddp_main,
 	.main_len = ARRAY_SIZE(mt8173_mtk_ddp_main),
@@ -374,6 +409,7 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
 	{ .compatible = "mediatek,mt8173-dsi",        .data = (void *)MTK_DSI },
 	{ .compatible = "mediatek,mt8173-dpi",        .data = (void *)MTK_DPI },
 	{ .compatible = "mediatek,mt2701-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt2712-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
 	{ .compatible = "mediatek,mt8173-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
 	{ .compatible = "mediatek,mt2701-disp-pwm",   .data = (void *)MTK_DISP_BLS },
 	{ .compatible = "mediatek,mt8173-disp-pwm",   .data = (void *)MTK_DISP_PWM },
@@ -552,6 +588,8 @@ static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend,
 static const struct of_device_id mtk_drm_of_ids[] = {
 	{ .compatible = "mediatek,mt2701-mmsys",
 	  .data = &mt2701_mmsys_driver_data},
+	{ .compatible = "mediatek,mt2712-mmsys",
+	  .data = &mt2712_mmsys_driver_data},
 	{ .compatible = "mediatek,mt8173-mmsys",
 	  .data = &mt8173_mmsys_driver_data},
 	{ }
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index c3378c452c0a..e821342bc2d3 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -17,8 +17,8 @@
 #include <linux/io.h>
 #include "mtk_drm_ddp_comp.h"
 
-#define MAX_CRTC	2
-#define MAX_CONNECTOR	2
+#define MAX_CRTC	3
+#define MAX_CONNECTOR	3
 
 struct device;
 struct device_node;
@@ -33,6 +33,9 @@ struct mtk_mmsys_driver_data {
 	unsigned int main_len;
 	const enum mtk_ddp_comp_id *ext_path;
 	unsigned int ext_len;
+	enum mtk_ddp_comp_id *third_path;
+	unsigned int third_len;
+
 	bool shadow_register;
 };
 
-- 
2.12.5

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Re: [PATCH v3 7/8] drm/mediatek: Add support for mediatek SOC MT2712

[CK Hu]

Hi, Stu:

I've some inline comment.

On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> From: Stu Hsieh <stu.hsieh@mediatek.com>
> 
> This patch add support for the Mediatek MT2712 DISP subsystem.
> There are two OVL engine and three disp output in MT2712.
> 
> Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c      | 46 +++++++++++++++++++++++++++--
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  8 +++--
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c      | 42 ++++++++++++++++++++++++--
>  drivers/gpu/drm/mediatek/mtk_drm_drv.h      |  7 +++--
>  4 files changed, 94 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index 0f568dd853d8..676726249ae0 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -61,6 +61,24 @@
>  #define MT8173_MUTEX_MOD_DISP_PWM1		24
>  #define MT8173_MUTEX_MOD_DISP_OD		25
>  
> +#define MT2712_MUTEX_MOD_DISP_OVL0		11
> +#define MT2712_MUTEX_MOD_DISP_OVL1		12
> +#define MT2712_MUTEX_MOD_DISP_RDMA0		13
> +#define MT2712_MUTEX_MOD_DISP_RDMA1		14
> +#define MT2712_MUTEX_MOD_DISP_RDMA2		15
> +#define MT2712_MUTEX_MOD_DISP_WDMA0		16
> +#define MT2712_MUTEX_MOD_DISP_WDMA1		17
> +#define MT2712_MUTEX_MOD_DISP_COLOR0		18
> +#define MT2712_MUTEX_MOD_DISP_COLOR1		19
> +#define MT2712_MUTEX_MOD_DISP_AAL0		20
> +#define MT2712_MUTEX_MOD_DISP_UFOE		22
> +#define MT2712_MUTEX_MOD_DISP_PWM0		23
> +#define MT2712_MUTEX_MOD_DISP_PWM1		24
> +#define MT2712_MUTEX_MOD_DISP_PWM2		10
> +#define MT2712_MUTEX_MOD_DISP_OD0		25
> +#define MT2712_MUTEX_MOD2_DISP_AAL1		33
> +#define MT2712_MUTEX_MOD2_DISP_OD1		34

I would like this to be in the order by index.

> +
>  #define MT2701_MUTEX_MOD_DISP_OVL		3
>  #define MT2701_MUTEX_MOD_DISP_WDMA		6
>  #define MT2701_MUTEX_MOD_DISP_COLOR		7
> @@ -75,6 +93,7 @@
>  
>  #define OVL0_MOUT_EN_COLOR0		0x1
>  #define OD_MOUT_EN_RDMA0		0x1
> +#define OD1_MOUT_EN_RDMA1		BIT(16)
>  #define UFOE_MOUT_EN_DSI0		0x1
>  #define COLOR0_SEL_IN_OVL0		0x1
>  #define OVL1_MOUT_EN_COLOR1		0x1
> @@ -109,12 +128,32 @@ static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = {
>  	[DDP_COMPONENT_WDMA0] = MT2701_MUTEX_MOD_DISP_WDMA,
>  };
>  
> +static const unsigned int mt2712_mutex_mod[DDP_COMPONENT_ID_MAX] = {
> +	[DDP_COMPONENT_AAL0] = MT2712_MUTEX_MOD_DISP_AAL0,
> +	[DDP_COMPONENT_AAL1] = MT2712_MUTEX_MOD2_DISP_AAL1,
> +	[DDP_COMPONENT_COLOR0] = MT2712_MUTEX_MOD_DISP_COLOR0,
> +	[DDP_COMPONENT_COLOR1] = MT2712_MUTEX_MOD_DISP_COLOR1,
> +	[DDP_COMPONENT_OD0] = MT2712_MUTEX_MOD_DISP_OD0,
> +	[DDP_COMPONENT_OD1] = MT2712_MUTEX_MOD2_DISP_OD1,
> +	[DDP_COMPONENT_OVL0] = MT2712_MUTEX_MOD_DISP_OVL0,
> +	[DDP_COMPONENT_OVL1] = MT2712_MUTEX_MOD_DISP_OVL1,
> +	[DDP_COMPONENT_PWM0] = MT2712_MUTEX_MOD_DISP_PWM0,
> +	[DDP_COMPONENT_PWM1] = MT2712_MUTEX_MOD_DISP_PWM1,
> +	[DDP_COMPONENT_PWM2] = MT2712_MUTEX_MOD_DISP_PWM2,
> +	[DDP_COMPONENT_RDMA0] = MT2712_MUTEX_MOD_DISP_RDMA0,
> +	[DDP_COMPONENT_RDMA1] = MT2712_MUTEX_MOD_DISP_RDMA1,
> +	[DDP_COMPONENT_RDMA2] = MT2712_MUTEX_MOD_DISP_RDMA2,
> +	[DDP_COMPONENT_UFOE] = MT2712_MUTEX_MOD_DISP_UFOE,
> +	[DDP_COMPONENT_WDMA0] = MT2712_MUTEX_MOD_DISP_WDMA0,
> +	[DDP_COMPONENT_WDMA1] = MT2712_MUTEX_MOD_DISP_WDMA1,
> +};
> +
>  static const unsigned int mt8173_mutex_mod[DDP_COMPONENT_ID_MAX] = {
> -	[DDP_COMPONENT_AAL] = MT8173_MUTEX_MOD_DISP_AAL,
> +	[DDP_COMPONENT_AAL0] = MT8173_MUTEX_MOD_DISP_AAL,

Move this to the patch 'add ddp component AAL1'.

>  	[DDP_COMPONENT_COLOR0] = MT8173_MUTEX_MOD_DISP_COLOR0,
>  	[DDP_COMPONENT_COLOR1] = MT8173_MUTEX_MOD_DISP_COLOR1,
>  	[DDP_COMPONENT_GAMMA] = MT8173_MUTEX_MOD_DISP_GAMMA,
> -	[DDP_COMPONENT_OD] = MT8173_MUTEX_MOD_DISP_OD,
> +	[DDP_COMPONENT_OD0] = MT8173_MUTEX_MOD_DISP_OD,

Move this to the patch 'add ddp component OD1'.

>  	[DDP_COMPONENT_OVL0] = MT8173_MUTEX_MOD_DISP_OVL0,
>  	[DDP_COMPONENT_OVL1] = MT8173_MUTEX_MOD_DISP_OVL1,
>  	[DDP_COMPONENT_PWM0] = MT8173_MUTEX_MOD_DISP_PWM0,
> @@ -139,7 +178,7 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
>  	} else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) {
>  		*addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN;
>  		value = OVL_MOUT_EN_RDMA;
> -	} else if (cur == DDP_COMPONENT_OD && next == DDP_COMPONENT_RDMA0) {
> +	} else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) {

Move this to the patch 'add ddp component OD1'.

>  		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
>  		value = OD_MOUT_EN_RDMA0;
>  	} else if (cur == DDP_COMPONENT_UFOE && next == DDP_COMPONENT_DSI0) {
> @@ -429,6 +468,7 @@ static int mtk_ddp_remove(struct platform_device *pdev)
>  
>  static const struct of_device_id ddp_driver_dt_match[] = {
>  	{ .compatible = "mediatek,mt2701-disp-mutex", .data = mt2701_mutex_mod},
> +	{ .compatible = "mediatek,mt2712-disp-mutex", .data = mt2712_mutex_mod},
>  	{ .compatible = "mediatek,mt8173-disp-mutex", .data = mt8173_mutex_mod},
>  	{},
>  };
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index 4672317e3ad1..86e8c9e5df41 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -218,7 +218,8 @@ struct mtk_ddp_comp_match {
>  };
>  
>  static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
> -	[DDP_COMPONENT_AAL]	= { MTK_DISP_AAL,	0, &ddp_aal },
> +	[DDP_COMPONENT_AAL0]	= { MTK_DISP_AAL,	0, &ddp_aal },
> +	[DDP_COMPONENT_AAL1]	= { MTK_DISP_AAL,	1, &ddp_aal },

Move this to the patch 'add ddp component AAL1'.

>  	[DDP_COMPONENT_BLS]	= { MTK_DISP_BLS,	0, NULL },
>  	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, NULL },
>  	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, NULL },
> @@ -226,10 +227,13 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
>  	[DDP_COMPONENT_DSI0]	= { MTK_DSI,		0, NULL },
>  	[DDP_COMPONENT_DSI1]	= { MTK_DSI,		1, NULL },
>  	[DDP_COMPONENT_GAMMA]	= { MTK_DISP_GAMMA,	0, &ddp_gamma },
> -	[DDP_COMPONENT_OD]	= { MTK_DISP_OD,	0, &ddp_od },
> +	[DDP_COMPONENT_OD0]	= { MTK_DISP_OD,	0, &ddp_od },
> +	[DDP_COMPONENT_OD1]	= { MTK_DISP_OD,	1, &ddp_od },

Move this to the patch 'add ddp component OD1'

>  	[DDP_COMPONENT_OVL0]	= { MTK_DISP_OVL,	0, NULL },
>  	[DDP_COMPONENT_OVL1]	= { MTK_DISP_OVL,	1, NULL },
>  	[DDP_COMPONENT_PWM0]	= { MTK_DISP_PWM,	0, NULL },
> +	[DDP_COMPONENT_PWM1]	= { MTK_DISP_PWM,	1, NULL },

Move this to the patch 'add ddp component PWM1'

> +	[DDP_COMPONENT_PWM2]	= { MTK_DISP_PWM,	2, NULL },

Move this to the patch 'add ddp component PWM2'

>  	[DDP_COMPONENT_RDMA0]	= { MTK_DISP_RDMA,	0, NULL },
>  	[DDP_COMPONENT_RDMA1]	= { MTK_DISP_RDMA,	1, NULL },
>  	[DDP_COMPONENT_RDMA2]	= { MTK_DISP_RDMA,	2, NULL },
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index a2ca90fc403c..b32c4cc8d051 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -146,11 +146,37 @@ static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
>  	DDP_COMPONENT_DPI0,
>  };
>  
> +static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
> +	DDP_COMPONENT_OVL0,
> +	DDP_COMPONENT_COLOR0,
> +	DDP_COMPONENT_AAL0,
> +	DDP_COMPONENT_OD0,
> +	DDP_COMPONENT_RDMA0,
> +	DDP_COMPONENT_DPI0,
> +	DDP_COMPONENT_PWM0,
> +};
> +
> +static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
> +	DDP_COMPONENT_OVL1,
> +	DDP_COMPONENT_COLOR1,
> +	DDP_COMPONENT_AAL1,
> +	DDP_COMPONENT_OD1,
> +	DDP_COMPONENT_RDMA1,
> +	DDP_COMPONENT_DPI1,
> +	DDP_COMPONENT_PWM1,
> +};
> +
> +static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = {
> +	DDP_COMPONENT_RDMA2,
> +	DDP_COMPONENT_DSI2,
> +	DDP_COMPONENT_PWM2,
> +};
> +
>  static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
>  	DDP_COMPONENT_OVL0,
>  	DDP_COMPONENT_COLOR0,
> -	DDP_COMPONENT_AAL,
> -	DDP_COMPONENT_OD,
> +	DDP_COMPONENT_AAL0,

Move this to the patch 'add ddp component AAL1'.

> +	DDP_COMPONENT_OD0,

Move this to the patch 'add ddp component OD1'

>  	DDP_COMPONENT_RDMA0,
>  	DDP_COMPONENT_UFOE,
>  	DDP_COMPONENT_DSI0,
> @@ -173,6 +199,15 @@ static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
>  	.shadow_register = true,
>  };
>  
> +static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
> +	.main_path = mt2712_mtk_ddp_main,
> +	.main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
> +	.ext_path = mt2712_mtk_ddp_ext,
> +	.ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext),
> +	.third_path = mt2712_mtk_ddp_third,
> +	.third_len = ARRAY_SIZE(mt2712_mtk_ddp_third),
> +};
> +
>  static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
>  	.main_path = mt8173_mtk_ddp_main,
>  	.main_len = ARRAY_SIZE(mt8173_mtk_ddp_main),
> @@ -374,6 +409,7 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>  	{ .compatible = "mediatek,mt8173-dsi",        .data = (void *)MTK_DSI },
>  	{ .compatible = "mediatek,mt8173-dpi",        .data = (void *)MTK_DPI },
>  	{ .compatible = "mediatek,mt2701-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
> +	{ .compatible = "mediatek,mt2712-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
>  	{ .compatible = "mediatek,mt8173-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
>  	{ .compatible = "mediatek,mt2701-disp-pwm",   .data = (void *)MTK_DISP_BLS },
>  	{ .compatible = "mediatek,mt8173-disp-pwm",   .data = (void *)MTK_DISP_PWM },
> @@ -552,6 +588,8 @@ static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend,
>  static const struct of_device_id mtk_drm_of_ids[] = {
>  	{ .compatible = "mediatek,mt2701-mmsys",
>  	  .data = &mt2701_mmsys_driver_data},
> +	{ .compatible = "mediatek,mt2712-mmsys",
> +	  .data = &mt2712_mmsys_driver_data},
>  	{ .compatible = "mediatek,mt8173-mmsys",
>  	  .data = &mt8173_mmsys_driver_data},
>  	{ }
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> index c3378c452c0a..e821342bc2d3 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> @@ -17,8 +17,8 @@
>  #include <linux/io.h>
>  #include "mtk_drm_ddp_comp.h"
>  
> -#define MAX_CRTC	2
> -#define MAX_CONNECTOR	2
> +#define MAX_CRTC	3
> +#define MAX_CONNECTOR	3
>  
>  struct device;
>  struct device_node;
> @@ -33,6 +33,9 @@ struct mtk_mmsys_driver_data {
>  	unsigned int main_len;
>  	const enum mtk_ddp_comp_id *ext_path;
>  	unsigned int ext_len;
> +	enum mtk_ddp_comp_id *third_path;
> +	unsigned int third_len;
> +

Move this to the patch 'add third ddp path'.

>  	bool shadow_register;
>  };
>  

Regards,
CK


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Re: [PATCH v3 7/8] drm/mediatek: Add support for mediatek SOC MT2712

[Stu Hsieh]

Hi, CK:

On Fri, 2018-05-25 at 12:51 +0800, CK Hu wrote:
> Hi, Stu:
> 
> I've some inline comment.
> 
> On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> > From: Stu Hsieh <stu.hsieh@mediatek.com>
> > 
> > This patch add support for the Mediatek MT2712 DISP subsystem.
> > There are two OVL engine and three disp output in MT2712.
> > 
> > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp.c      | 46 +++++++++++++++++++++++++++--
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  8 +++--
> >  drivers/gpu/drm/mediatek/mtk_drm_drv.c      | 42 ++++++++++++++++++++++++--
> >  drivers/gpu/drm/mediatek/mtk_drm_drv.h      |  7 +++--
> >  4 files changed, 94 insertions(+), 9 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> > index 0f568dd853d8..676726249ae0 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> > @@ -61,6 +61,24 @@
> >  #define MT8173_MUTEX_MOD_DISP_PWM1		24
> >  #define MT8173_MUTEX_MOD_DISP_OD		25
> >  
> > +#define MT2712_MUTEX_MOD_DISP_OVL0		11
> > +#define MT2712_MUTEX_MOD_DISP_OVL1		12
> > +#define MT2712_MUTEX_MOD_DISP_RDMA0		13
> > +#define MT2712_MUTEX_MOD_DISP_RDMA1		14
> > +#define MT2712_MUTEX_MOD_DISP_RDMA2		15
> > +#define MT2712_MUTEX_MOD_DISP_WDMA0		16
> > +#define MT2712_MUTEX_MOD_DISP_WDMA1		17
> > +#define MT2712_MUTEX_MOD_DISP_COLOR0		18
> > +#define MT2712_MUTEX_MOD_DISP_COLOR1		19
> > +#define MT2712_MUTEX_MOD_DISP_AAL0		20
> > +#define MT2712_MUTEX_MOD_DISP_UFOE		22
> > +#define MT2712_MUTEX_MOD_DISP_PWM0		23
> > +#define MT2712_MUTEX_MOD_DISP_PWM1		24
> > +#define MT2712_MUTEX_MOD_DISP_PWM2		10
> > +#define MT2712_MUTEX_MOD_DISP_OD0		25
> > +#define MT2712_MUTEX_MOD2_DISP_AAL1		33
> > +#define MT2712_MUTEX_MOD2_DISP_OD1		34
> 
> I would like this to be in the order by index.
OK

> 
> > +
> >  #define MT2701_MUTEX_MOD_DISP_OVL		3
> >  #define MT2701_MUTEX_MOD_DISP_WDMA		6
> >  #define MT2701_MUTEX_MOD_DISP_COLOR		7
> > @@ -75,6 +93,7 @@
> >  
> >  #define OVL0_MOUT_EN_COLOR0		0x1
> >  #define OD_MOUT_EN_RDMA0		0x1
> > +#define OD1_MOUT_EN_RDMA1		BIT(16)
> >  #define UFOE_MOUT_EN_DSI0		0x1
> >  #define COLOR0_SEL_IN_OVL0		0x1
> >  #define OVL1_MOUT_EN_COLOR1		0x1
> > @@ -109,12 +128,32 @@ static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = {
> >  	[DDP_COMPONENT_WDMA0] = MT2701_MUTEX_MOD_DISP_WDMA,
> >  };
> >  
> > +static const unsigned int mt2712_mutex_mod[DDP_COMPONENT_ID_MAX] = {
> > +	[DDP_COMPONENT_AAL0] = MT2712_MUTEX_MOD_DISP_AAL0,
> > +	[DDP_COMPONENT_AAL1] = MT2712_MUTEX_MOD2_DISP_AAL1,
> > +	[DDP_COMPONENT_COLOR0] = MT2712_MUTEX_MOD_DISP_COLOR0,
> > +	[DDP_COMPONENT_COLOR1] = MT2712_MUTEX_MOD_DISP_COLOR1,
> > +	[DDP_COMPONENT_OD0] = MT2712_MUTEX_MOD_DISP_OD0,
> > +	[DDP_COMPONENT_OD1] = MT2712_MUTEX_MOD2_DISP_OD1,
> > +	[DDP_COMPONENT_OVL0] = MT2712_MUTEX_MOD_DISP_OVL0,
> > +	[DDP_COMPONENT_OVL1] = MT2712_MUTEX_MOD_DISP_OVL1,
> > +	[DDP_COMPONENT_PWM0] = MT2712_MUTEX_MOD_DISP_PWM0,
> > +	[DDP_COMPONENT_PWM1] = MT2712_MUTEX_MOD_DISP_PWM1,
> > +	[DDP_COMPONENT_PWM2] = MT2712_MUTEX_MOD_DISP_PWM2,
> > +	[DDP_COMPONENT_RDMA0] = MT2712_MUTEX_MOD_DISP_RDMA0,
> > +	[DDP_COMPONENT_RDMA1] = MT2712_MUTEX_MOD_DISP_RDMA1,
> > +	[DDP_COMPONENT_RDMA2] = MT2712_MUTEX_MOD_DISP_RDMA2,
> > +	[DDP_COMPONENT_UFOE] = MT2712_MUTEX_MOD_DISP_UFOE,
> > +	[DDP_COMPONENT_WDMA0] = MT2712_MUTEX_MOD_DISP_WDMA0,
> > +	[DDP_COMPONENT_WDMA1] = MT2712_MUTEX_MOD_DISP_WDMA1,
> > +};
> > +
> >  static const unsigned int mt8173_mutex_mod[DDP_COMPONENT_ID_MAX] = {
> > -	[DDP_COMPONENT_AAL] = MT8173_MUTEX_MOD_DISP_AAL,
> > +	[DDP_COMPONENT_AAL0] = MT8173_MUTEX_MOD_DISP_AAL,
> 
> Move this to the patch 'add ddp component AAL1'.
OK

> 
> >  	[DDP_COMPONENT_COLOR0] = MT8173_MUTEX_MOD_DISP_COLOR0,
> >  	[DDP_COMPONENT_COLOR1] = MT8173_MUTEX_MOD_DISP_COLOR1,
> >  	[DDP_COMPONENT_GAMMA] = MT8173_MUTEX_MOD_DISP_GAMMA,
> > -	[DDP_COMPONENT_OD] = MT8173_MUTEX_MOD_DISP_OD,
> > +	[DDP_COMPONENT_OD0] = MT8173_MUTEX_MOD_DISP_OD,
> 
> Move this to the patch 'add ddp component OD1'.
OK

> 
> >  	[DDP_COMPONENT_OVL0] = MT8173_MUTEX_MOD_DISP_OVL0,
> >  	[DDP_COMPONENT_OVL1] = MT8173_MUTEX_MOD_DISP_OVL1,
> >  	[DDP_COMPONENT_PWM0] = MT8173_MUTEX_MOD_DISP_PWM0,
> > @@ -139,7 +178,7 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
> >  	} else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) {
> >  		*addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN;
> >  		value = OVL_MOUT_EN_RDMA;
> > -	} else if (cur == DDP_COMPONENT_OD && next == DDP_COMPONENT_RDMA0) {
> > +	} else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) {
> 
> Move this to the patch 'add ddp component OD1'.
OK

> 
> >  		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
> >  		value = OD_MOUT_EN_RDMA0;
> >  	} else if (cur == DDP_COMPONENT_UFOE && next == DDP_COMPONENT_DSI0) {
> > @@ -429,6 +468,7 @@ static int mtk_ddp_remove(struct platform_device *pdev)
> >  
> >  static const struct of_device_id ddp_driver_dt_match[] = {
> >  	{ .compatible = "mediatek,mt2701-disp-mutex", .data = mt2701_mutex_mod},
> > +	{ .compatible = "mediatek,mt2712-disp-mutex", .data = mt2712_mutex_mod},
> >  	{ .compatible = "mediatek,mt8173-disp-mutex", .data = mt8173_mutex_mod},
> >  	{},
> >  };
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index 4672317e3ad1..86e8c9e5df41 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > @@ -218,7 +218,8 @@ struct mtk_ddp_comp_match {
> >  };
> >  
> >  static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
> > -	[DDP_COMPONENT_AAL]	= { MTK_DISP_AAL,	0, &ddp_aal },
> > +	[DDP_COMPONENT_AAL0]	= { MTK_DISP_AAL,	0, &ddp_aal },
> > +	[DDP_COMPONENT_AAL1]	= { MTK_DISP_AAL,	1, &ddp_aal },
> 
> Move this to the patch 'add ddp component AAL1'.
ok

> 
> >  	[DDP_COMPONENT_BLS]	= { MTK_DISP_BLS,	0, NULL },
> >  	[DDP_COMPONENT_COLOR0]	= { MTK_DISP_COLOR,	0, NULL },
> >  	[DDP_COMPONENT_COLOR1]	= { MTK_DISP_COLOR,	1, NULL },
> > @@ -226,10 +227,13 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
> >  	[DDP_COMPONENT_DSI0]	= { MTK_DSI,		0, NULL },
> >  	[DDP_COMPONENT_DSI1]	= { MTK_DSI,		1, NULL },
> >  	[DDP_COMPONENT_GAMMA]	= { MTK_DISP_GAMMA,	0, &ddp_gamma },
> > -	[DDP_COMPONENT_OD]	= { MTK_DISP_OD,	0, &ddp_od },
> > +	[DDP_COMPONENT_OD0]	= { MTK_DISP_OD,	0, &ddp_od },
> > +	[DDP_COMPONENT_OD1]	= { MTK_DISP_OD,	1, &ddp_od },
> 
> Move this to the patch 'add ddp component OD1'
ok

> 
> >  	[DDP_COMPONENT_OVL0]	= { MTK_DISP_OVL,	0, NULL },
> >  	[DDP_COMPONENT_OVL1]	= { MTK_DISP_OVL,	1, NULL },
> >  	[DDP_COMPONENT_PWM0]	= { MTK_DISP_PWM,	0, NULL },
> > +	[DDP_COMPONENT_PWM1]	= { MTK_DISP_PWM,	1, NULL },
> 
> Move this to the patch 'add ddp component PWM1'
ok, i would create the new patch for 'add ddp component PWM1'
> 
> > +	[DDP_COMPONENT_PWM2]	= { MTK_DISP_PWM,	2, NULL },
> 
> Move this to the patch 'add ddp component PWM2'
ok

> 
> >  	[DDP_COMPONENT_RDMA0]	= { MTK_DISP_RDMA,	0, NULL },
> >  	[DDP_COMPONENT_RDMA1]	= { MTK_DISP_RDMA,	1, NULL },
> >  	[DDP_COMPONENT_RDMA2]	= { MTK_DISP_RDMA,	2, NULL },
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > index a2ca90fc403c..b32c4cc8d051 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > @@ -146,11 +146,37 @@ static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
> >  	DDP_COMPONENT_DPI0,
> >  };
> >  
> > +static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
> > +	DDP_COMPONENT_OVL0,
> > +	DDP_COMPONENT_COLOR0,
> > +	DDP_COMPONENT_AAL0,
> > +	DDP_COMPONENT_OD0,
> > +	DDP_COMPONENT_RDMA0,
> > +	DDP_COMPONENT_DPI0,
> > +	DDP_COMPONENT_PWM0,
> > +};
> > +
> > +static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
> > +	DDP_COMPONENT_OVL1,
> > +	DDP_COMPONENT_COLOR1,
> > +	DDP_COMPONENT_AAL1,
> > +	DDP_COMPONENT_OD1,
> > +	DDP_COMPONENT_RDMA1,
> > +	DDP_COMPONENT_DPI1,
> > +	DDP_COMPONENT_PWM1,
> > +};
> > +
> > +static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = {
> > +	DDP_COMPONENT_RDMA2,
> > +	DDP_COMPONENT_DSI2,
> > +	DDP_COMPONENT_PWM2,
> > +};
> > +
> >  static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
> >  	DDP_COMPONENT_OVL0,
> >  	DDP_COMPONENT_COLOR0,
> > -	DDP_COMPONENT_AAL,
> > -	DDP_COMPONENT_OD,
> > +	DDP_COMPONENT_AAL0,
> 
> Move this to the patch 'add ddp component AAL1'.
ok

> 
> > +	DDP_COMPONENT_OD0,
> 
> Move this to the patch 'add ddp component OD1'
ok

> 
> >  	DDP_COMPONENT_RDMA0,
> >  	DDP_COMPONENT_UFOE,
> >  	DDP_COMPONENT_DSI0,
> > @@ -173,6 +199,15 @@ static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
> >  	.shadow_register = true,
> >  };
> >  
> > +static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
> > +	.main_path = mt2712_mtk_ddp_main,
> > +	.main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
> > +	.ext_path = mt2712_mtk_ddp_ext,
> > +	.ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext),
> > +	.third_path = mt2712_mtk_ddp_third,
> > +	.third_len = ARRAY_SIZE(mt2712_mtk_ddp_third),
> > +};
> > +
> >  static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
> >  	.main_path = mt8173_mtk_ddp_main,
> >  	.main_len = ARRAY_SIZE(mt8173_mtk_ddp_main),
> > @@ -374,6 +409,7 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
> >  	{ .compatible = "mediatek,mt8173-dsi",        .data = (void *)MTK_DSI },
> >  	{ .compatible = "mediatek,mt8173-dpi",        .data = (void *)MTK_DPI },
> >  	{ .compatible = "mediatek,mt2701-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
> > +	{ .compatible = "mediatek,mt2712-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
> >  	{ .compatible = "mediatek,mt8173-disp-mutex", .data = (void *)MTK_DISP_MUTEX },
> >  	{ .compatible = "mediatek,mt2701-disp-pwm",   .data = (void *)MTK_DISP_BLS },
> >  	{ .compatible = "mediatek,mt8173-disp-pwm",   .data = (void *)MTK_DISP_PWM },
> > @@ -552,6 +588,8 @@ static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend,
> >  static const struct of_device_id mtk_drm_of_ids[] = {
> >  	{ .compatible = "mediatek,mt2701-mmsys",
> >  	  .data = &mt2701_mmsys_driver_data},
> > +	{ .compatible = "mediatek,mt2712-mmsys",
> > +	  .data = &mt2712_mmsys_driver_data},
> >  	{ .compatible = "mediatek,mt8173-mmsys",
> >  	  .data = &mt8173_mmsys_driver_data},
> >  	{ }
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> > index c3378c452c0a..e821342bc2d3 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> > @@ -17,8 +17,8 @@
> >  #include <linux/io.h>
> >  #include "mtk_drm_ddp_comp.h"
> >  
> > -#define MAX_CRTC	2
> > -#define MAX_CONNECTOR	2
> > +#define MAX_CRTC	3
> > +#define MAX_CONNECTOR	3
> >  
> >  struct device;
> >  struct device_node;
> > @@ -33,6 +33,9 @@ struct mtk_mmsys_driver_data {
> >  	unsigned int main_len;
> >  	const enum mtk_ddp_comp_id *ext_path;
> >  	unsigned int ext_len;
> > +	enum mtk_ddp_comp_id *third_path;
> > +	unsigned int third_len;
> > +
> 
> Move this to the patch 'add third ddp path'.
ok
> 
> >  	bool shadow_register;
> >  };
> >  
> 
> Regards,
> CK
> 
> 


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Re: [PATCH v3 7/8] drm/mediatek: Add support for mediatek SOC MT2712

[kbuild test robot]

[-- Attachment #1: Type: text/plain, Size: 3579 bytes --]

Hi Stu,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm/drm-next]
[also build test ERROR on v4.17-rc6 next-20180517]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/stu-hsieh-mediatek-com/Add-support-for-mediatek-SOC-MT2712/20180525-211114
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All error/warnings (new ones prefixed by >>):

>> drivers/gpu//drm/mediatek/mtk_drm_drv.c:165:2: error: 'DDP_COMPONENT_DPI1' undeclared here (not in a function); did you mean 'DDP_COMPONENT_DSI1'?
     DDP_COMPONENT_DPI1,
     ^~~~~~~~~~~~~~~~~~
     DDP_COMPONENT_DSI1
>> drivers/gpu//drm/mediatek/mtk_drm_drv.c:171:2: error: 'DDP_COMPONENT_DSI2' undeclared here (not in a function); did you mean 'DDP_COMPONENT_DSI1'?
     DDP_COMPONENT_DSI2,
     ^~~~~~~~~~~~~~~~~~
     DDP_COMPONENT_DSI1
>> drivers/gpu//drm/mediatek/mtk_drm_drv.c:171:2: error: incompatible types when initializing type 'enum mtk_ddp_comp_id' using type 'const enum mtk_ddp_comp_id *'
>> drivers/gpu//drm/mediatek/mtk_drm_drv.c:207:16: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     .third_path = mt2712_mtk_ddp_third,
                   ^~~~~~~~~~~~~~~~~~~~

vim +165 drivers/gpu//drm/mediatek/mtk_drm_drv.c

   158	
   159	static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
   160		DDP_COMPONENT_OVL1,
   161		DDP_COMPONENT_COLOR1,
   162		DDP_COMPONENT_AAL1,
   163		DDP_COMPONENT_OD1,
   164		DDP_COMPONENT_RDMA1,
 > 165		DDP_COMPONENT_DPI1,
   166		DDP_COMPONENT_PWM1,
   167	};
   168	
   169	static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = {
   170		DDP_COMPONENT_RDMA2,
 > 171		DDP_COMPONENT_DSI2,
   172		DDP_COMPONENT_PWM2,
   173	};
   174	
   175	static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
   176		DDP_COMPONENT_OVL0,
   177		DDP_COMPONENT_COLOR0,
   178		DDP_COMPONENT_AAL0,
   179		DDP_COMPONENT_OD0,
   180		DDP_COMPONENT_RDMA0,
   181		DDP_COMPONENT_UFOE,
   182		DDP_COMPONENT_DSI0,
   183		DDP_COMPONENT_PWM0,
   184	};
   185	
   186	static const enum mtk_ddp_comp_id mt8173_mtk_ddp_ext[] = {
   187		DDP_COMPONENT_OVL1,
   188		DDP_COMPONENT_COLOR1,
   189		DDP_COMPONENT_GAMMA,
   190		DDP_COMPONENT_RDMA1,
   191		DDP_COMPONENT_DPI0,
   192	};
   193	
   194	static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
   195		.main_path = mt2701_mtk_ddp_main,
   196		.main_len = ARRAY_SIZE(mt2701_mtk_ddp_main),
   197		.ext_path = mt2701_mtk_ddp_ext,
   198		.ext_len = ARRAY_SIZE(mt2701_mtk_ddp_ext),
   199		.shadow_register = true,
   200	};
   201	
   202	static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
   203		.main_path = mt2712_mtk_ddp_main,
   204		.main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
   205		.ext_path = mt2712_mtk_ddp_ext,
   206		.ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext),
 > 207		.third_path = mt2712_mtk_ddp_third,
   208		.third_len = ARRAY_SIZE(mt2712_mtk_ddp_third),
   209	};
   210	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 65211 bytes --]

[PATCH v3 8/8] drm/mediatek: add third ddp path

[stu.hsieh]

From: Stu Hsieh <stu.hsieh@mediatek.com>

This patch create third crtc by third ddp path

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index b32c4cc8d051..3a866e1d6af4 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -267,6 +267,11 @@ static int mtk_drm_kms_init(struct drm_device *drm)
 	if (ret < 0)
 		goto err_component_unbind;
 
+	ret = mtk_drm_crtc_create(drm, private->data->third_path,
+				  private->data->third_len);
+	if (ret < 0)
+		goto err_component_unbind;
+
 	/* Use OVL device for all DMA memory allocations */
 	np = private->comp_node[private->data->main_path[0]] ?:
 	     private->comp_node[private->data->ext_path[0]];
-- 
2.12.5

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Re: [PATCH v3 8/8] drm/mediatek: add third ddp path

[CK Hu]

Hi, Stu:

On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> From: Stu Hsieh <stu.hsieh@mediatek.com>
> 
> This patch create third crtc by third ddp path
> 

Apply this patch before the patch 'Add support for mediatek SOC MT2712'
because this patch is necessary for mt2712.

> Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index b32c4cc8d051..3a866e1d6af4 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -267,6 +267,11 @@ static int mtk_drm_kms_init(struct drm_device *drm)
>  	if (ret < 0)
>  		goto err_component_unbind;
>  
> +	ret = mtk_drm_crtc_create(drm, private->data->third_path,
> +				  private->data->third_len);

I think you should prevent doing this for mt8173 and mt2701 because that
two SoC has only two ddp path.

Regards,
CK

> +	if (ret < 0)
> +		goto err_component_unbind;
> +
>  	/* Use OVL device for all DMA memory allocations */
>  	np = private->comp_node[private->data->main_path[0]] ?:
>  	     private->comp_node[private->data->ext_path[0]];

Re: [PATCH v3 8/8] drm/mediatek: add third ddp path

[Stu Hsieh]

Hi, CK:
I've some idea as below.

On Fri, 2018-05-25 at 13:00 +0800, CK Hu wrote:
> Hi, Stu:
> 
> On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> > From: Stu Hsieh <stu.hsieh@mediatek.com>
> > 
> > This patch create third crtc by third ddp path
> > 
> 
> Apply this patch before the patch 'Add support for mediatek SOC MT2712'
> because this patch is necessary for mt2712.
> 
> > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > index b32c4cc8d051..3a866e1d6af4 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > @@ -267,6 +267,11 @@ static int mtk_drm_kms_init(struct drm_device *drm)
> >  	if (ret < 0)
> >  		goto err_component_unbind;
> >  
> > +	ret = mtk_drm_crtc_create(drm, private->data->third_path,
> > +				  private->data->third_len);
> 
> I think you should prevent doing this for mt8173 and mt2701 because that
> two SoC has only two ddp path.

Now, 8173 and 2701 have only two ddp path, there is a problem on run
time. 
There are three crtc for drm resource, and there is nothing in third
crtc. 
Because 8173 and 2701 have no third ddp, and the third ddp_len is zero.
So, I want to add the condition like following in mtk_crtc_create()
if (path_len == 0)
	return 0;

Then, the valur ret is zero and it would not create the null third crtc.


Regards,
Stu

> 
> Regards,
> CK
> 
> > +	if (ret < 0)
> > +		goto err_component_unbind;
> > +
> >  	/* Use OVL device for all DMA memory allocations */
> >  	np = private->comp_node[private->data->main_path[0]] ?:
> >  	     private->comp_node[private->data->ext_path[0]];
> 
> 


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Re: [PATCH v3 8/8] drm/mediatek: add third ddp path

[CK Hu]

Hi, Stu:

On Mon, 2018-05-28 at 10:26 +0800, Stu Hsieh wrote:
> Hi, CK:
> I've some idea as below.
> 
> On Fri, 2018-05-25 at 13:00 +0800, CK Hu wrote:
> > Hi, Stu:
> > 
> > On Fri, 2018-05-25 at 10:34 +0800, stu.hsieh@mediatek.com wrote:
> > > From: Stu Hsieh <stu.hsieh@mediatek.com>
> > > 
> > > This patch create third crtc by third ddp path
> > > 
> > 
> > Apply this patch before the patch 'Add support for mediatek SOC MT2712'
> > because this patch is necessary for mt2712.
> > 
> > > Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
> > > ---
> > >  drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
> > >  1 file changed, 5 insertions(+)
> > > 
> > > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > > index b32c4cc8d051..3a866e1d6af4 100644
> > > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > > @@ -267,6 +267,11 @@ static int mtk_drm_kms_init(struct drm_device *drm)
> > >  	if (ret < 0)
> > >  		goto err_component_unbind;
> > >  
> > > +	ret = mtk_drm_crtc_create(drm, private->data->third_path,
> > > +				  private->data->third_len);
> > 
> > I think you should prevent doing this for mt8173 and mt2701 because that
> > two SoC has only two ddp path.
> 
> Now, 8173 and 2701 have only two ddp path, there is a problem on run
> time. 
> There are three crtc for drm resource, and there is nothing in third
> crtc. 
> Because 8173 and 2701 have no third ddp, and the third ddp_len is zero.
> So, I want to add the condition like following in mtk_crtc_create()
> if (path_len == 0)
> 	return 0;
> 
> Then, the valur ret is zero and it would not create the null third crtc.

This sounds good to me.

Regards,
CK

> 
> 
> Regards,
> Stu
> 
> > 
> > Regards,
> > CK
> > 
> > > +	if (ret < 0)
> > > +		goto err_component_unbind;
> > > +
> > >  	/* Use OVL device for all DMA memory allocations */
> > >  	np = private->comp_node[private->data->main_path[0]] ?:
> > >  	     private->comp_node[private->data->ext_path[0]];
> > 
> > 
> 
> 


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