Commit 49629304 authored by Yongqiang Niu's avatar Yongqiang Niu Committed by Chun-Kuang Hu
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drm/mediatek: Enable dither function 



Enable dither function to improve the display quality.

Signed-off-by: default avatarYongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: default avatarHsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: default avatarChun-Kuang Hu <chunkuang.hu@kernel.org>
parent d41ff4dc

drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c

+3 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ 
#define DITHER_EN				BIT(0)

#define DISP_DITHER_CFG				0x0020

#define DITHER_RELAY_MODE			BIT(0)

#define DITHER_ENGINE_EN			BIT(1)

#define DISP_DITHER_SIZE			0x0030



#define LUT_10BIT_MASK				0x03ff
@@ -317,6 +318,8 @@ static void mtk_dither_config(struct device *dev, unsigned int w, 


	mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, DISP_DITHER_SIZE);

	mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, &priv->cmdq_reg, priv->regs, DISP_DITHER_CFG);

	mtk_dither_set_common(priv->regs, &priv->cmdq_reg, bpc, DISP_DITHER_CFG,

			      DITHER_ENGINE_EN, cmdq_pkt);

}



static void mtk_dither_start(struct device *dev)