Convert drm_find_cea_extension() to EDID block iterator in basic audio detection. Detect basic audio in all CEA extensions.
Cc: Ville Syrjälä ville.syrjala@linux.intel.com Signed-off-by: Jani Nikula jani.nikula@intel.com --- drivers/gpu/drm/drm_edid.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index bc12ede8694c..3b18a6e501df 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -5112,17 +5112,21 @@ EXPORT_SYMBOL(drm_detect_hdmi_monitor); */ bool drm_detect_monitor_audio(const struct edid *edid) { + struct drm_edid_iter edid_iter; const struct cea_db *db; struct cea_db_iter iter; const u8 *edid_ext; bool has_audio = false;
- edid_ext = drm_find_cea_extension(edid); - if (!edid_ext) - goto end; - - has_audio = (edid_ext[0] == CEA_EXT && - (edid_ext[3] & EDID_BASIC_AUDIO) != 0); + drm_edid_iter_begin(edid, &edid_iter); + drm_edid_iter_for_each(edid_ext, &edid_iter) { + if (edid_ext[0] == CEA_EXT) { + has_audio = edid_ext[3] & EDID_BASIC_AUDIO; + if (has_audio) + break; + } + } + drm_edid_iter_end(&edid_iter);
if (has_audio) { DRM_DEBUG_KMS("Monitor has basic audio support\n");