From b6b1bb980ec4e82bbef9b4c98efbb0df6740bb53 Mon Sep 17 00:00:00 2001 From: Mark Yacoub Date: Wed, 11 Dec 2019 10:49:01 -0500 Subject: [PATCH] drm/mediatek: Turn off Alpha bit when plane format has no alpha This change enables XR24 format to be displayed as an overlay on top of the primary plane. Suggested-by: Sean Paul To: CK Hu To: dri-devel@lists.freedesktop.org Cc: Daniele Castagna Cc: Philipp Zabel Cc: David Airlie Cc: Daniel Vetter Cc: Matthias Brugger Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mediatek@lists.infradead.org Signed-off-by: Mark Yacoub Signed-off-by: CK Hu --- 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 ec4c4952aa5f..891d80c73e04 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) {