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Commit 7c23396b authored by Jani Nikula's avatar Jani Nikula Committed by Daniel Vetter
Browse files

drm/i915: return actual brightness to .get_brightness callback 



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: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent b6b3ba5b

drivers/gpu/drm/i915/intel_panel.c

+1 −2
Original line number Diff line number Diff line
@@ -415,8 +415,7 @@ static int intel_panel_update_status(struct backlight_device *bd) 
static int intel_panel_get_brightness(struct backlight_device *bd)

{

	struct drm_device *dev = bl_get_data(bd);

	struct drm_i915_private *dev_priv = dev->dev_private;

	return dev_priv->backlight_level;

	return intel_panel_get_backlight(dev);

}



static const struct backlight_ops intel_panel_bl_ops = {