Re: [PATCH v3, 18/27] drm/medaitek: add layer_nr for ovl private data

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Hi, Yongqiang:

On Wed, 2019-06-05 at 19:42 +0800, yongqiang.niu@xxxxxxxxxxxx wrote:
> From: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
> 
> This patch add layer_nr for ovl private data
> ovl_2l almost same with with ovl hardware, except the
> layer number for ovl_2l is 2 and ovl is 4.
> this patch is a preparation for ovl-2l and
> ovl share the same driver.

This patch is identical to v2, and I've give a 'Reviewed-by' for v2,
so you should keep this 'Reviewed-by' tag in this patch, so I still give
you a

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

> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> index afb313c..a0ab760 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> @@ -60,6 +60,7 @@
>  struct mtk_disp_ovl_data {
>  	unsigned int addr;
>  	unsigned int gmc_bits;
> +	unsigned int layer_nr;
>  	bool fmt_rgb565_is_0;
>  };
>  
> @@ -137,7 +138,9 @@ static void mtk_ovl_config(struct mtk_ddp_comp *comp, unsigned int w,
>  
>  static unsigned int mtk_ovl_layer_nr(struct mtk_ddp_comp *comp)
>  {
> -	return 4;
> +	struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
> +
> +	return ovl->data->layer_nr;
>  }
>  
>  static void mtk_ovl_layer_on(struct mtk_ddp_comp *comp, unsigned int idx)
> @@ -342,12 +345,14 @@ static int mtk_disp_ovl_remove(struct platform_device *pdev)
>  static const struct mtk_disp_ovl_data mt2701_ovl_driver_data = {
>  	.addr = DISP_REG_OVL_ADDR_MT2701,
>  	.gmc_bits = 8,
> +	.layer_nr = 4,
>  	.fmt_rgb565_is_0 = false,
>  };
>  
>  static const struct mtk_disp_ovl_data mt8173_ovl_driver_data = {
>  	.addr = DISP_REG_OVL_ADDR_MT8173,
>  	.gmc_bits = 8,
> +	.layer_nr = 4,
>  	.fmt_rgb565_is_0 = true,
>  };
>  


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