Re: [PATCH v2 19/25] drm/edid: add drm_edid helper for drm_detect_hdmi_monitor()

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LGTM.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>

Regards,

Ankit

On 5/9/2022 5:33 PM, Jani Nikula wrote:
We'll need to propagate drm_edid everywhere.

v2: Handle NULL EDID pointer (Ville, CI)

Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
  drivers/gpu/drm/drm_edid.c | 33 ++++++++++++++++++++-------------
  1 file changed, 20 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 5cc851f6d3b3..fc74159cd426 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5113,18 +5113,7 @@ int drm_av_sync_delay(struct drm_connector *connector,
  }
  EXPORT_SYMBOL(drm_av_sync_delay);
-/**
- * drm_detect_hdmi_monitor - detect whether monitor is HDMI
- * @edid: monitor EDID information
- *
- * Parse the CEA extension according to CEA-861-B.
- *
- * Drivers that have added the modes parsed from EDID to drm_display_info
- * should use &drm_display_info.is_hdmi instead of calling this function.
- *
- * Return: True if the monitor is HDMI, false if not or unknown.
- */
-bool drm_detect_hdmi_monitor(const struct edid *edid)
+static bool _drm_detect_hdmi_monitor(const struct drm_edid *drm_edid)
  {
  	const struct cea_db *db;
  	struct cea_db_iter iter;
@@ -5134,7 +5123,7 @@ bool drm_detect_hdmi_monitor(const struct edid *edid)
  	 * Because HDMI identifier is in Vendor Specific Block,
  	 * search it from all data blocks of CEA extension.
  	 */
-	cea_db_iter_edid_begin(edid, &iter);
+	cea_db_iter_edid_begin(drm_edid ? drm_edid->edid : NULL, &iter);
  	cea_db_iter_for_each(db, &iter) {
  		if (cea_db_is_hdmi_vsdb(db)) {
  			hdmi = true;
@@ -5145,6 +5134,24 @@ bool drm_detect_hdmi_monitor(const struct edid *edid)
return hdmi;
  }
+
+/**
+ * drm_detect_hdmi_monitor - detect whether monitor is HDMI
+ * @edid: monitor EDID information
+ *
+ * Parse the CEA extension according to CEA-861-B.
+ *
+ * Drivers that have added the modes parsed from EDID to drm_display_info
+ * should use &drm_display_info.is_hdmi instead of calling this function.
+ *
+ * Return: True if the monitor is HDMI, false if not or unknown.
+ */
+bool drm_detect_hdmi_monitor(const struct edid *edid)
+{
+	struct drm_edid drm_edid;
+
+	return _drm_detect_hdmi_monitor(drm_edid_legacy_init(&drm_edid, edid));
+}
  EXPORT_SYMBOL(drm_detect_hdmi_monitor);
/**



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