linux-kernel - [PATCH v2 1/1] drm/sti: hdmi: call drm_edid_connector

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Message-ID: <20251020013039.1800-2-chuguangqing@inspur.com>
Date: Mon, 20 Oct 2025 09:30:39 +0800
From: Chu Guangqing <chuguangqing@...pur.com>
To: <alain.volmat@...s.st.com>, <rgallaispou@...il.com>,
	<maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
	<tzimmermann@...e.de>, <airlied@...il.com>, <simona@...ll.ch>
CC: <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>, Chu
 Guangqing <chuguangqing@...pur.com>
Subject: [PATCH v2 1/1] drm/sti: hdmi: call drm_edid_connector_update when edid is NULL

call drm_edid_connector_update to reset the information when edid is NULL.
We can see the following comments in drm_edid.c
If EDID is NULL, reset the information.

Signed-off-by: Chu Guangqing <chuguangqing@...pur.com>
---
 drivers/gpu/drm/sti/sti_hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 4e7c3d78b2b9..e0be1be8bcdd 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -1008,7 +1008,7 @@ static int sti_hdmi_connector_get_modes(struct drm_connector *connector)
 	return count;
 
 fail:
-	DRM_ERROR("Can't read HDMI EDID\n");
+	drm_edid_connector_update(connector, NULL);
 	return 0;
 }
 
-- 
2.43.7