drm/mediatek: mtk-dpi: Set out_fmt from config if not the last bridge

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atomic_get_output_bus_fmts() is only called when the bridge is the last
element in the bridge chain.

If mtk-dpi is not the last bridge, the format of output_bus_cfg is
MEDIA_BUS_FMT_FIXED, and mtk_dpi_dual_edge() will fail to write correct
value to regs.

Fixes: ec8747c524 ("drm/mediatek: dpi: Add bus format negotiation")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

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Hsin-Yi Wang 2021-07-12 17:46:57 +08:00 • committed by Chun-Kuang Hu

parent e062233c0e

commit 6b57ba3243

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/mediatek/mtk_dpi.c

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