[PATCH 10/19] drm/edid: convert drm_detect_hdmi_monitor() to use cea db iter

[Jani Nikula <jani.nikula@xxxxxxxxx>]

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 164a2020f9e1..b1fac281fd85 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5155,27 +5155,24 @@ 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