[PATCH 01/15] gpu/drm: make drm_add_edid_modes() consistent when updating connector->display_info

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According to the documentation, drm_add_edid_modes
"... Also fills out the &drm_display_info structure and ELD in @connector
with any information which can be derived from the edid."

drm_add_edid_modes accepts a struct edid *edid parameter which may have a
value or may be null. When it is not null, connector->display_info and
connector->eld are updated according to the edid. When edid=NULL, only
connector->eld is reset. Reset connector->display_info to be consistent
and accurate.

Signed-off-by: Claudio Suarez <cssk@xxxxxxxx>
---
 drivers/gpu/drm/drm_edid.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 6325877c5fd6..6cbe09b2357c 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -5358,10 +5358,12 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
 
 	if (edid == NULL) {
 		clear_eld(connector);
+		drm_reset_display_info(connector);
 		return 0;
 	}
 	if (!drm_edid_is_valid(edid)) {
 		clear_eld(connector);
+		drm_reset_display_info(connector);
 		drm_warn(connector->dev, "%s: EDID invalid.\n",
 			 connector->name);
 		return 0;
-- 
2.33.0






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