linux-kernel - Re: [DPU PATCH ] drm/msm/dpu: Ignore alpha for XBGR8888 format

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Date:   Fri, 14 Dec 2018 10:53:28 -0500
From:   Sean Paul <sean@...rly.run>
To:     Jayant Shekhar <jshekhar@...eaurora.org>
Cc:     dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, robdclark@...il.com,
        seanpaul@...omium.org, hoegsberg@...omium.org,
        abhinavk@...eaurora.org, jsanka@...eaurora.org,
        chandanu@...eaurora.org, nganji@...eaurora.org
Subject: Re: [DPU PATCH ] drm/msm/dpu:
 Ignore alpha for XBGR8888 format

On Fri, Nov 30, 2018 at 05:22:50PM +0530, Jayant Shekhar wrote:
> Alpha enable in the pixel format will help in
> selecting the blend rule. By keeping alpha enable
> to true we are allowing foreground alpha to blend
> with the layer. If alpha is don't care, then we
> should not allow pixel alpha to be part of blend
> equation.
> 
> Signed-off-by: Jayant Shekhar <jshekhar@...eaurora.org>

Pushed to dpu-staging/for-next.

Thanks for your patch!

Sean

> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c
> index bfcd165..d743e7c 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c
> @@ -216,7 +216,7 @@ struct dpu_media_color_map {
>  	INTERLEAVED_RGB_FMT(XBGR8888,
>  		COLOR_8BIT, COLOR_8BIT, COLOR_8BIT, COLOR_8BIT,
>  		C2_R_Cr, C0_G_Y, C1_B_Cb, C3_ALPHA, 4,
> -		true, 4, 0,
> +		false, 4, 0,
>  		DPU_FETCH_LINEAR, 1),
>  
>  	INTERLEAVED_RGB_FMT(RGBA8888,
> -- 
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS