[Intel-gfx] [PATCH 19/25] drm/edid: add drm_edid helper for drm_detect_hdmi_monitor()

[Jani Nikula]

We'll need to propagate drm_edid everywhere.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
 drivers/gpu/drm/drm_edid.c | 36 +++++++++++++++++++++++-------------
 1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 51aee048bcff..3277b4fd33ce 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5100,18 +5100,7 @@ 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;
@@ -5121,7 +5110,7 @@ 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->edid, &iter);
        cea_db_iter_for_each(db, &iter) {
                if (cea_db_is_hdmi_vsdb(db)) {
                        hdmi = true;
@@ -5132,6 +5121,27 @@ 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 = {
+               .edid = edid,
+               .size = edid_size(edid),
+       };
+
+       return _drm_detect_hdmi_monitor(&drm_edid);
+}
 EXPORT_SYMBOL(drm_detect_hdmi_monitor);
 
 /**
-- 
2.30.2