Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "A bunch of i915 fixes, one revert a VBT fix that was a bit premature,
  and some braswell feature removal that the hw actually didn't support.

  One radeon race fix at boot, and one hlcdc build fix, one fix from
  Russell that fixes build as well with new audio features.

  This is hopefully all I have until -next"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: fix hotplug race at startup
  drm/edid: add function to help find SADs
  drm/i915: Avoid TP3 on CHV
  drm/i915: remove HBR2 from chv supported list
  Revert "drm/i915: Add eDP intermediate frequencies for CHV"
  Revert "drm/i915: Allow parsing of variable size child device entries from VBT"
  drm/atmel-hlcdc: Compile suspend/resume for PM_SLEEP only
  drm/i915: Flag the execlists context object as dirty after every use

1 files changed, 19 insertions, 0 deletions

diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 799050198323..53c53c459b15 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -348,6 +348,25 @@ static inline int drm_eld_mnl(const uint8_t *eld)
 }
 
 /**
+ * drm_eld_sad - Get ELD SAD structures.
+ * @eld: pointer to an eld memory structure with sad_count set
+ */
+static inline const uint8_t *drm_eld_sad(const uint8_t *eld)
+{
+	unsigned int ver, mnl;
+
+	ver = (eld[DRM_ELD_VER] & DRM_ELD_VER_MASK) >> DRM_ELD_VER_SHIFT;
+	if (ver != 2 && ver != 31)
+		return NULL;
+
+	mnl = drm_eld_mnl(eld);
+	if (mnl > 16)
+		return NULL;
+
+	return eld + DRM_ELD_CEA_SAD(mnl, 0);
+}
+
+/**
  * drm_eld_sad_count - Get ELD SAD count.
  * @eld: pointer to an eld memory structure with sad_count set
  */