drm/mediatek: Fix YCbCr422 color format issue for DP

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[ Upstream commit ef24fbd8f1 ]

Setting up misc0 for Pixel Encoding Format.

According to the definition of YCbCr in spec 1.2a Table 2-96,
0x1 << 1 should be written to the register.

Use switch case to distinguish RGB, YCbCr422,
and unsupported color formats.

Fixes: f70ac097a2 ("drm/mediatek: Add MT8195 Embedded DisplayPort driver")
Signed-off-by: Liankun Yang <liankun.yang@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20241025083036.8829-2-liankun.yang@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Liankun Yang 2024-10-25 16:28:27 +08:00 • committed by Greg Kroah-Hartman

parent cc4bd32888

commit c06dda11c5

1 changed files with 8 additions and 5 deletions

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drivers/gpu/drm/mediatek/mtk_dp.c

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