drm/edid: add a helper function to extract the speaker allocation data block (v3)
This adds a helper function to extract the speaker allocation
data block from the EDID. This data block describes what speakers
are present on the display device.
v2: update per Ville Syrjälä's comments
v3: fix copy/paste typo in memory allocation
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Tested-by: Rafał Miłecki <zajec5@gmail.com>
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index fc481fc..c76a129 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -259,6 +259,7 @@
void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid);
int drm_edid_to_sad(struct edid *edid, struct cea_sad **sads);
+int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb);
int drm_av_sync_delay(struct drm_connector *connector,
struct drm_display_mode *mode);
struct drm_connector *drm_select_eld(struct drm_encoder *encoder,