Iterate through all CTA data blocks, not just the first CTA extension.
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 25 +++++++++++--------------
1 file changed, 11 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 1ea27278652b..ca594d502941 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5131,27 +5131,24 @@ EXPORT_SYMBOL(drm_av_sync_delay);
*/
bool drm_detect_hdmi_monitor(const struct edid *edid)
{
- const u8 *edid_ext;
- int i;
- int start_offset, end_offset;
-
- edid_ext = drm_find_cea_extension(edid);
- if (!edid_ext)
- return false;
-
- if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
- return false;
+ const struct cea_db *db;
+ struct cea_db_iter iter;
+ bool hdmi = false;
/*
* Because HDMI identifier is in Vendor Specific Block,
* search it from all data blocks of CEA extension.
*/
- for_each_cea_db(edid_ext, i, start_offset, end_offset) {
- if (cea_db_is_hdmi_vsdb(&edid_ext[i]))
- return true;
+ cea_db_iter_edid_begin(edid, &iter);
+ cea_db_iter_for_each(db, &iter) {
+ if (cea_db_is_hdmi_vsdb(db)) {
+ hdmi = true;
+ break;
+ }
}
+ cea_db_iter_end(&iter);
- return false;
+ return hdmi;
}
EXPORT_SYMBOL(drm_detect_hdmi_monitor);
--
2.30.2
