The patch below does not apply to the 6.12-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <[email protected]>.

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

>From 1d5362145de96b5d00d590605cc94cdfa572b405 Mon Sep 17 00:00:00 2001
From: Loic Poulain <[email protected]>
Date: Thu, 18 Dec 2025 16:13:07 +0100
Subject: [PATCH] drm/bridge: anx7625: Fix invalid EDID size

DRM checks EDID block count against allocated size in drm_edid_valid
function. We have to allocate the right EDID size instead of the max
size to prevent the EDID to be reported as invalid.

Cc: [email protected]
Fixes: 7c585f9a71aa ("drm/bridge: anx7625: use struct drm_edid more")
Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Loic Poulain <[email protected]>
Link: 
https://patch.msgid.link/[email protected]
Signed-off-by: Dmitry Baryshkov <[email protected]>
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c 
b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 6f3fdcb6afdb9..4e49e4f28d552 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1801,7 +1801,7 @@ static const struct drm_edid *anx7625_edid_read(struct 
anx7625_data *ctx)
                return NULL;
        }
 
-       ctx->cached_drm_edid = drm_edid_alloc(edid_buf, FOUR_BLOCK_SIZE);
+       ctx->cached_drm_edid = drm_edid_alloc(edid_buf, edid_num * 
ONE_BLOCK_SIZE);
        kfree(edid_buf);
 
 out:
-- 
2.51.0




Reply via email to