[2/2] Turn off Alpha bit when plane format has no alpha
diff mbox series

Message ID 20191211154901.176256-2-markyacoub@google.com
State New
Headers show
Series
  • [1/2] Return from mtk_ovl_layer_config after mtk_ovl_layer_off
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Commit Message

Mark Yacoub Dec. 11, 2019, 3:49 p.m. UTC
drm/mediatek: Add OVL_CON_ALPHA only when the plane format has_alpha.

This change enables XR24 format to be displayed as an overlay on top of
the primary plane.

Suggested-by: Sean Paul <seanpaul@chromium.org>
To: CK Hu <ck.hu@mediatek.com>
To: dri-devel@lists.freedesktop.org
Cc: Daniele Castagna <dcastagna@chromium.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Mark Yacoub <markyacoub@google.com>
---
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

CK Hu Dec. 12, 2019, 4:45 a.m. UTC | #1
Hi, Mark:

On Wed, 2019-12-11 at 10:49 -0500, Mark Yacoub wrote:
> drm/mediatek: Add OVL_CON_ALPHA only when the plane format has_alpha.
> 
> This change enables XR24 format to be displayed as an overlay on top of
> the primary plane.

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

> 
> Suggested-by: Sean Paul <seanpaul@chromium.org>
> To: CK Hu <ck.hu@mediatek.com>
> To: dri-devel@lists.freedesktop.org
> Cc: Daniele Castagna <dcastagna@chromium.org>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: Matthias Brugger <matthias.bgg@gmail.com>
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-mediatek@lists.infradead.org
> Signed-off-by: Mark Yacoub <markyacoub@google.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> index 526b595eeff9..a7851756dddf 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
> @@ -266,7 +266,7 @@ static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
>  	}
>  
>  	con = ovl_fmt_convert(ovl, fmt);
> -	if (idx != 0)
> +	if (state->base.fb->format->has_alpha)
>  		con |= OVL_CON_AEN | OVL_CON_ALPHA;
>  
>  	if (pending->rotation & DRM_MODE_REFLECT_Y) {

Patch
diff mbox series

diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 526b595eeff9..a7851756dddf 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -266,7 +266,7 @@  static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
 	}
 
 	con = ovl_fmt_convert(ovl, fmt);
-	if (idx != 0)
+	if (state->base.fb->format->has_alpha)
 		con |= OVL_CON_AEN | OVL_CON_ALPHA;
 
 	if (pending->rotation & DRM_MODE_REFLECT_Y) {