drm/bridge: ti-sn65dsi86: Check the regmap return value when setting a GPIO

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The ti_sn_bridge_gpio_set() got the return value of
regmap_update_bits() but didn't check it.  The function can't return
an error value, but we should at least print a warning if it didn't
work.

This fixes a compiler warning about setting "ret" but not using it.

Fixes: 27ed2b3f22 ("drm/bridge: ti-sn65dsi86: Export bridge GPIOs to Linux")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200612123003.v2.4.Ia4376fd88cdc6e8f8b43c65548458305f82f1d61@changeid

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Douglas Anderson 2020-06-12 12:30:50 -07:00 • committed by Neil Armstrong

parent c42fb724cd

commit c8fa5b7c7a

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/bridge/ti-sn65dsi86.c

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