drm/bridge: it6505: Check power state with it6505->powered in IRQ handler

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commit e9d699af3f upstream.

On system resume, the driver might call it6505_poweron directly if the
runtime PM hasn't been enabled. In such case, pm_runtime_get_if_in_use
will always return 0 because dev->power.runtime_status stays at
RPM_SUSPENDED, and the IRQ will never be handled.

Use it6505->powered from the driver struct fixes this because it always
gets updated when it6505_poweron is called.

Fixes: 5eb9a43140 ("drm/bridge: it6505: Guard bridge power in IRQ handler")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230727100131.2338127-1-treapking@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Pin-yen Lin 2023-07-27 18:01:10 +08:00 • committed by Greg Kroah-Hartman

parent 059412083c

commit 7eacde7fb9

1 changed files with 3 additions and 1 deletions

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drivers/gpu/drm/bridge/ite-it6505.c

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