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Lin" , Fei Shao , Sean Paul , Jason Chen , , , , , Hsiao Chien Sung Subject: [PATCH v6 11/14] drm/mediatek: Support "None" alpha blending in Mixer Date: Fri, 22 Mar 2024 13:28:26 +0800 Message-ID: <20240322052829.9893-12-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240322052829.9893-1-shawn.sung@mediatek.com> References: <20240322052829.9893-1-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" 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. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediate= k/mtk_ethdr.c index 4b12ca285e84b..951e3e82a6a1a 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -178,7 +178,8 @@ void mtk_ethdr_layer_config(struct device *dev, unsigne= d int idx, if (state->base.pixel_blend_mode !=3D DRM_MODE_BLEND_COVERAGE) mix_con |=3D PREMULTI_SOURCE; =20 - if (state->base.fb && !state->base.fb->format->has_alpha) { + if (state->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE || + (state->base.fb && !state->base.fb->format->has_alpha)) { /* * Mixer doesn't support CONST_BLD mode, * use a trick to make the output equivalent --=20 2.18.0