diff mbox series

[v5,11/32] drm/mediatek: split DISP_REG_CONFIG_DSI_SEL setting into another use case

Message ID 1567090254-15566-12-git-send-email-yongqiang.niu@mediatek.com (mailing list archive)
State New, archived
Headers show
Series add drm support for MT8183 | expand

Commit Message

Yongqiang Niu Aug. 29, 2019, 2:50 p.m. UTC
From: Yongqiang Niu <yongqiang.niu@mediatek.com>

Here is two modifition in this patch:
1.bls->dpi0 and rdma1->dsi are differen usecase,
Split DISP_REG_CONFIG_DSI_SEL setting into anther usecase
2.remove DISP_REG_CONFIG_DPI_SEL setting, DPI_SEL_IN_BLS is 0 and
this is same with hardware defautl setting,

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

CK Hu (胡俊光) Aug. 30, 2019, 5:21 a.m. UTC | #1
Hi, Yongqiang:

On Thu, 2019-08-29 at 22:50 +0800, yongqiang.niu@mediatek.com wrote:
> From: Yongqiang Niu <yongqiang.niu@mediatek.com>
> 
> Here is two modifition in this patch:
> 1.bls->dpi0 and rdma1->dsi are differen usecase,
> Split DISP_REG_CONFIG_DSI_SEL setting into anther usecase
> 2.remove DISP_REG_CONFIG_DPI_SEL setting, DPI_SEL_IN_BLS is 0 and
> this is same with hardware defautl setting,
> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index 4866a9b..c93e1b7 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -392,10 +392,9 @@ static void mtk_ddp_sout_sel(void __iomem *config_regs,
>  	} else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) {
>  		writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI,
>  			       config_regs + DISP_REG_CONFIG_OUT_SEL);
> +	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) {
>  		writel_relaxed(DSI_SEL_IN_RDMA,
>  			       config_regs + DISP_REG_CONFIG_DSI_SEL);
> -		writel_relaxed(DPI_SEL_IN_BLS,
> -			       config_regs + DISP_REG_CONFIG_DPI_SEL);

As internal discussion, please rewrite this to prevent breaking MT2701
connection. It's better to add comment to address the special usage for
MT2701.

Regards,
CK

>  	}
>  }
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
index 4866a9b..c93e1b7 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
@@ -392,10 +392,9 @@  static void mtk_ddp_sout_sel(void __iomem *config_regs,
 	} else if (cur == DDP_COMPONENT_BLS && next == DDP_COMPONENT_DPI0) {
 		writel_relaxed(BLS_TO_DPI_RDMA1_TO_DSI,
 			       config_regs + DISP_REG_CONFIG_OUT_SEL);
+	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) {
 		writel_relaxed(DSI_SEL_IN_RDMA,
 			       config_regs + DISP_REG_CONFIG_DSI_SEL);
-		writel_relaxed(DPI_SEL_IN_BLS,
-			       config_regs + DISP_REG_CONFIG_DPI_SEL);
 	}
 }