drm/bridge: analogix_dp: Check dpcd write/read status

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We need to check the dpcd write/read return value to see whether the
write/read was successful

Cc: Kristian H. Kristensen <hoegsberg@chromium.org>
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180423105003.9004-11-enric.balletbo@collabora.com

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Lin Huang 2018-04-23 12:49:46 +02:00 • committed by Andrzej Hajda

parent 1932250df1

commit ccdc578b69

1 changed files with 127 additions and 42 deletions

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169

drivers/gpu/drm/bridge/analogix/analogix_dp_core.c

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