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X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Vetter , Sean Paul , Jason Chen , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, CK Hu , "Nancy . Lin" , linux-mediatek@lists.infradead.org, Bibby Hsieh , Matthias Brugger , Philipp Zabel , Hsiao Chien Sung , David Airlie , linux-arm-kernel@lists.infradead.org, AngeloGioacchino Del Regno Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org From: Hsiao Chien Sung When 9-bit alpha is enabled, its value will be converted from 0-255 to 0-256 (255 = not defined). This is designed for special HDR related calculation, which should be disabled by default, otherwise, alpha blending will not work correctly. Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Hsiao Chien Sung --- drivers/soc/mediatek/mtk-mmsys.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c index f370f4ec4b88..938240714e54 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -236,6 +236,7 @@ void mtk_mmsys_mixer_in_config(struct device *dev, int idx, bool alpha_sel, u16 mtk_mmsys_update_bits(mmsys, MT8195_VDO1_MIXER_IN1_ALPHA + (idx - 1) * 4, ~0, alpha << 16 | alpha, cmdq_pkt); + mtk_mmsys_update_bits(mmsys, MT8195_VDO1_HDR_TOP_CFG, BIT(15 + idx), 0, cmdq_pkt); mtk_mmsys_update_bits(mmsys, MT8195_VDO1_HDR_TOP_CFG, BIT(19 + idx), alpha_sel << (19 + idx), cmdq_pkt); mtk_mmsys_update_bits(mmsys, MT8195_VDO1_MIXER_IN1_PAD + (idx - 1) * 4,