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Lin" , Sean Paul , Jason Chen , Fei Shao , , , , , Hsiao Chien Sung Subject: [PATCH v9 14/21] drm/mediatek: Support "None" blending in OVL Date: Fri, 14 Jun 2024 10:46:13 +0800 Message-ID: <20240614024620.19011-15-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240614024620.19011-1-shawn.sung@mediatek.com> References: <20240614024620.19011-1-shawn.sung@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Hsiao Chien Sung Support "None" alpha blending mode on MediaTek's chips. Signed-off-by: Hsiao Chien Sung Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/medi= atek/mtk_disp_ovl.c index 2316d4a6dca7..6567806cf4e2 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -431,6 +431,7 @@ void mtk_ovl_layer_config(struct device *dev, unsigned = int idx, unsigned int fmt =3D pending->format; unsigned int offset =3D (pending->y << 16) | pending->x; unsigned int src_size =3D (pending->height << 16) | pending->width; + unsigned int blend_mode =3D state->base.pixel_blend_mode; unsigned int ignore_pixel_alpha =3D 0; unsigned int con; bool is_afbc =3D pending->modifier !=3D DRM_FORMAT_MOD_LINEAR; @@ -460,7 +461,8 @@ void mtk_ovl_layer_config(struct device *dev, unsigned = int idx, * For RGB888 related formats, whether CONST_BLD is enabled or not won't * affect the result. Therefore we use !has_alpha as the condition. */ - if (state->base.fb && !state->base.fb->format->has_alpha) + if ((state->base.fb && !state->base.fb->format->has_alpha) || + blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE) ignore_pixel_alpha =3D OVL_CONST_BLEND; =20 if (pending->rotation & DRM_MODE_REFLECT_Y) { --=20 2.18.0