linux-kernel - Re: [PATCH v2 05/10] drm/ingenic: Fix incorrect assumption about plane->index

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Message-ID: <20200630113542.GA560155@ravnborg.org>
Date:   Tue, 30 Jun 2020 13:35:42 +0200
From:   Sam Ravnborg <sam@...nborg.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, od@...c.me, stable@...r.kernel.org
Subject: Re: [PATCH v2 05/10] drm/ingenic: Fix incorrect assumption about
 plane->index

On Tue, Jun 30, 2020 at 01:52:05AM +0200, Paul Cercueil wrote:
> plane->index is NOT the index of the color plane in a YUV frame.
> Actually, a YUV frame is represented by a single drm_plane, even though
> it contains three Y, U, V planes.
> 
> Cc: stable@...r.kernel.org # v5.3
> Fixes: 90b86fcc47b4 ("DRM: Add KMS driver for the Ingenic JZ47xx SoCs")
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>

Look correct to me.

Acked-by: Sam Ravnborg <sam@...nborg.org>
As this is tagged fixes: I assume this is for drm-misc-fixes and
not for drm-misc-next.
If you resend could you move it as patch 1/10 so this is more obvious.

	Sam
> ---
> 
> Notes:
>     v2: No change
> 
>  drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> index a15f9a1940c6..924c8daf071a 100644
> --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> @@ -386,7 +386,7 @@ static void ingenic_drm_plane_atomic_update(struct drm_plane *plane,
>  		addr = drm_fb_cma_get_gem_addr(state->fb, state, 0);
>  		width = state->src_w >> 16;
>  		height = state->src_h >> 16;
> -		cpp = state->fb->format->cpp[plane->index];
> +		cpp = state->fb->format->cpp[0];
>  
>  		priv->dma_hwdesc->addr = addr;
>  		priv->dma_hwdesc->cmd = width * height * cpp / 4;
> -- 
> 2.27.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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