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Lin" , Sean Paul , Jason Chen , Fei Shao , , , , , Hsiao Chien Sung Subject: [PATCH v8 10/16] drm/mediatek: Support "None" blending in Mixer Date: Thu, 6 Jun 2024 17:26:29 +0800 Message-ID: <20240606092635.27981-11-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240606092635.27981-1-shawn.sung@mediatek.com> References: <20240606092635.27981-1-shawn.sung@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--4.178300-8.000000 X-TMASE-MatchedRID: k8Xm6x9M5ErX3tqA7xZNm8ULzBBTAHAlG9Itfzsy8/XYgrGDwuFJdmb6 PphVtfZgK9fd5I6WBOthbsRjLV+pNp+BjDkC4XJTjtK7dC6UBnl+tO36GYDlsuO53bHtM9W3iVt eKAOd9rhnSqefas3A08pjK4dbPxs8HxPMjOKY7A+6vVBUUydJCsRB0bsfrpPI34T9cYMsdwz2cc BlyeQr709Ni2ZnJg4yhKZCUEesutcW467SPzkncbsa8xqwmNE/JGuGIRi8VgllxXdq19WFigJLo hiPn0jZHthFPWXoPp+Oh+wyNBrFXDJiNuKohDcKzKSG3JdyKAPqtV2AGMNPaiHWPYzouJUy X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--4.178300-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 8933FFBED3013BF1EA093A6F42B7999F6BCC5E0B81E2D76F594F576377A332EC2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240606_022646_328144_FFECC0DD X-CRM114-Status: GOOD ( 10.87 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Hsiao Chien Sung Support "None" alpha blending mode on MediaTek's chips. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) -- 2.18.0 diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediatek/mtk_ethdr.c index 4ffd0a064861..bcced62e455d 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -3,6 +3,7 @@ * Copyright (c) 2021 MediaTek Inc. */ +#include #include #include #include @@ -154,6 +155,7 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, unsigned int offset = (pending->x & 1) << 31 | pending->y << 16 | pending->x; unsigned int align_width = ALIGN_DOWN(pending->width, 2); unsigned int alpha_con = 0; + bool replace_src_a = false; dev_dbg(dev, "%s+ idx:%d", __func__, idx); @@ -173,8 +175,16 @@ void mtk_ethdr_layer_config(struct device *dev, unsigned int idx, if (state->base.fb && state->base.fb->format->has_alpha) alpha_con = MIXER_ALPHA_AEN | MIXER_ALPHA; - mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, alpha_con ? false : true, - DEFAULT_9BIT_ALPHA, + if (state->base.pixel_blend_mode == 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 + */ + replace_src_a = true; + } + + mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, replace_src_a, MIXER_ALPHA, pending->x & 1 ? MIXER_INX_MODE_EVEN_EXTEND : MIXER_INX_MODE_BYPASS, align_width / 2 - 1, cmdq_pkt);