Commit 749052fb authored Oct 01, 2012 by Jani Nikula Committed by Daniel Vetter Oct 01, 2012

drm/i915: add debug logging to ASLE backlight set requests

Make it easier to track backlight set requests coming through ASLE instead
of the driver's own backlight sysfs interface. We've had enough of
backlight issues to warrant some extra debug logs in the area.

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

parent 17dc9257

drivers/gpu/drm/i915/intel_opregion.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -154,6 +154,8 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
	struct opregion_asle __iomem *asle = dev_priv->opregion.asle;		struct opregion_asle __iomem *asle = dev_priv->opregion.asle;
	u32 max;		u32 max;

			DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp);

	if (!(bclp & ASLE_BCLP_VALID))		if (!(bclp & ASLE_BCLP_VALID))
	return ASLE_BACKLIGHT_FAILED;		return ASLE_BACKLIGHT_FAILED;