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drm: rcar-du: Disable alpha blending for DU planes used with VSP
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>
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@ -73,7 +73,7 @@ void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
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.src.y2 = mode->vdisplay << 16,
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.zpos = 0,
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},
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.format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
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.format = rcar_du_format_info(DRM_FORMAT_XRGB8888),
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.source = RCAR_DU_PLANE_VSPD1,
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.colorkey = 0,
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};
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