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Date:   Thu, 11 Apr 2019 19:01:14 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     <yongqiang.niu@...iatek.com>
CC:     <p.zabel@...gutronix.de>, <robh+dt@...nel.org>,
        <matthias.bgg@...il.com>, <airlied@...ux.ie>,
        <mark.rutland@....com>, <dri-devel@...ts.freedesktop.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>, <Bibby.Hsieh@...iatek.com>,
        <yt.shen@...iatek.com>
Subject: Re: [PATCH v2 15/25] drm/mediatek: add function to background color
 input select for ovl/ovl_2l direct link

Hi, Yongqiang:

On Wed, 2019-03-27 at 14:19 +0800, yongqiang.niu@...iatek.com wrote:
> From: Yongqiang Niu <yongqiang.niu@...iatek.com>
> 
> This patch add function to background color input select for ovl/ovl_2l direct link
> for ovl/ovl_2l direct link usecase, we need set background color
> input select for these hardware.
> this is preparation patch for ovl/ovl_2l usecase
> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> index b76b663..20e8061 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> @@ -92,6 +92,9 @@ struct mtk_ddp_comp_funcs {
>  			     struct mtk_plane_state *state);
>  	void (*gamma_set)(struct mtk_ddp_comp *comp,
>  			  struct drm_crtc_state *state);
> +        void (*bgclr_in_on)(struct mtk_ddp_comp *comp,
> +			    enum mtk_ddp_comp_id prev);
> +        void (*bgclr_in_off)(struct mtk_ddp_comp *comp);
>  };
>  
>  struct mtk_ddp_comp {
> @@ -173,6 +176,19 @@ static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
>  		comp->funcs->gamma_set(comp, state);
>  }
>  
> +static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp,
> +					    enum mtk_ddp_comp_id prev)
> +{
> +        if (comp->funcs && comp->funcs->bgclr_in_on)
> +                comp->funcs->bgclr_in_on(comp, prev);
> +}
> +
> +static inline void mtk_ddp_comp_bgclr_in_off(struct mtk_ddp_comp *comp)
> +{
> +        if (comp->funcs && comp->funcs->bgclr_in_off)
> +                comp->funcs->bgclr_in_off(comp);

I think you should use a 'tab' to replace 8 white space.

Regards,
CK

> +}
> +
>  int mtk_ddp_comp_get_id(struct device_node *node,
>  			enum mtk_ddp_comp_type comp_type);
>  int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,


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