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drm: rcar-du: Disable alpha blending for DU planes used with VSP

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When the input to a DU channel comes from a VSP, the DU doesn't perform
any blending operation. Select XRGB8888 instead of ARGB8888 to ensure
that the corresponding registers don't get written with invalid values.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
This commit is contained in:
Laurent Pinchart 2023-02-22 05:54:03 +02:00
parent fb97147ad2
commit 2c5c13efc4
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/rcar-du/rcar_du_vsp.c
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@ -73,7 +73,7 @@ void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
.src.y2 = mode->vdisplay << 16,
.zpos = 0,
},
.format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
.format = rcar_du_format_info(DRM_FORMAT_XRGB8888),
.source = RCAR_DU_PLANE_VSPD1,
.colorkey = 0,
};