Re: [PATCH v3 1/2] drm/mediatek: Add mdp_rdma get format function

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On Thu, Mar 30, 2023 at 11:26:13AM +0800, Nancy.Lin wrote:
> Add mdp_rdma get_format and get_num_formats function.
> 
> Signed-off-by: Nancy.Lin <nancy.lin@xxxxxxxxxxxx>

The mtk get_formats stuff seems like a lot of midlayering for not much
reasons? Is that really needed?

Just a drive-by questions I had while merging the pr.
-Daniel

> ---
>  drivers/gpu/drm/mediatek/mtk_disp_drv.h |  3 +++
>  drivers/gpu/drm/mediatek/mtk_mdp_rdma.c | 24 ++++++++++++++++++++++++
>  2 files changed, 27 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 0d28b2e2069c..17b169530beb 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -152,4 +152,7 @@ void mtk_mdp_rdma_start(struct device *dev, struct cmdq_pkt *cmdq_pkt);
>  void mtk_mdp_rdma_stop(struct device *dev, struct cmdq_pkt *cmdq_pkt);
>  void mtk_mdp_rdma_config(struct device *dev, struct mtk_mdp_rdma_cfg *cfg,
>  			 struct cmdq_pkt *cmdq_pkt);
> +const u32 *mtk_mdp_rdma_get_formats(struct device *dev);
> +size_t mtk_mdp_rdma_get_num_formats(struct device *dev);
> +
>  #endif
> diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> index eecfa98ff52e..e06db6e56b5f 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> @@ -62,6 +62,20 @@
>  #define RDMA_CSC_FULL709_TO_RGB			5
>  #define RDMA_CSC_BT601_TO_RGB			6
>  
> +static const u32 formats[] = {
> +	DRM_FORMAT_XRGB8888,
> +	DRM_FORMAT_ARGB8888,
> +	DRM_FORMAT_BGRX8888,
> +	DRM_FORMAT_BGRA8888,
> +	DRM_FORMAT_ABGR8888,
> +	DRM_FORMAT_XBGR8888,
> +	DRM_FORMAT_RGB888,
> +	DRM_FORMAT_BGR888,
> +	DRM_FORMAT_RGB565,
> +	DRM_FORMAT_UYVY,
> +	DRM_FORMAT_YUYV,
> +};
> +
>  enum rdma_format {
>  	RDMA_INPUT_FORMAT_RGB565 = 0,
>  	RDMA_INPUT_FORMAT_RGB888 = 1,
> @@ -219,6 +233,16 @@ void mtk_mdp_rdma_config(struct device *dev, struct mtk_mdp_rdma_cfg *cfg,
>  			   MDP_RDMA_MF_CLIP_SIZE, FLD_MF_CLIP_H);
>  }
>  
> +const u32 *mtk_mdp_rdma_get_formats(struct device *dev)
> +{
> +	return formats;
> +}
> +
> +size_t mtk_mdp_rdma_get_num_formats(struct device *dev)
> +{
> +	return ARRAY_SIZE(formats);
> +}
> +
>  int mtk_mdp_rdma_clk_enable(struct device *dev)
>  {
>  	struct mtk_mdp_rdma *rdma = dev_get_drvdata(dev);
> -- 
> 2.18.0
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch



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