| Message ID | 20240322052829.9893-11-shawn.sung@mediatek.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Support IGT in display driver | expand |
Hi, Shawn: On Fri, 2024-03-22 at 13:28 +0800, Shawn Sung wrote: > From: Hsiao Chien Sung <shawn.sung@mediatek.com> > > Support "None" blend mode on MediaTek's chips. > > Please refer to the description of the commit > "drm/mediatek: Support alpha blending in display driver" > for more information. Reviewed-by: CK Hu <ck.hu@mediatek.com> > > Signed-off-by: Hsiao Chien Sung <shawn.sung@mediatek.com> > --- > drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > index b1e5d453316cc..a936f338ab79d 100644 > --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c > @@ -484,7 +484,8 @@ void mtk_ovl_layer_config(struct device *dev, > unsigned int idx, > con |= state->base.alpha & OVL_CON_ALPHA; > } > > - if (state->base.fb && !state->base.fb->format->has_alpha) > + if (blend_mode == DRM_MODE_BLEND_PIXEL_NONE || > + (state->base.fb && !state->base.fb->format->has_alpha)) > ignore_pixel_alpha = OVL_CONST_BLEND; > > if (pending->rotation & DRM_MODE_REFLECT_Y) {
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index b1e5d453316cc..a936f338ab79d 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -484,7 +484,8 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx, con |= state->base.alpha & OVL_CON_ALPHA; } - if (state->base.fb && !state->base.fb->format->has_alpha) + if (blend_mode == DRM_MODE_BLEND_PIXEL_NONE || + (state->base.fb && !state->base.fb->format->has_alpha)) ignore_pixel_alpha = OVL_CONST_BLEND; if (pending->rotation & DRM_MODE_REFLECT_Y) {