drm/i915: return actual brightness to .get_brightness callback

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The backlight device .get_brightness callback is supposed to return the
actual brightness by querying the hardware, not the cached value. See
Documentation/ABI/stable/sysfs-class-backlight. The callback is there to
support the actual_brightness sysfs file.

With the backlight_level and backlight device brightness now in sync, one
can reliably get the cached value through the brightness sysfs file.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Jani Nikula 2013-03-12 11:44:16 +02:00 • committed by Daniel Vetter

parent b6b3ba5b22

commit 7c23396b40

1 changed files with 1 additions and 2 deletions

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drivers/gpu/drm/i915/intel_panel.c

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