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drm/mediatek: Enable dither function

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Enable dither function to improve the display quality.

Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
This commit is contained in:
Yongqiang Niu 2021-01-31 13:10:58 +08:00 committed by Chun-Kuang Hu
parent d41ff4dcf0
commit 49629304b9
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
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@ -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)