[PATCH 0/5] drm/bridge: lt9611c: improve HPD handling and driver robustness
From: mohit . dsor
Date: Sat Jun 27 2026 - 16:44:06 EST
From: Mohit Dsor <mohit.dsor@xxxxxxxxxxxxxxxx>
This series improves HPD handling and overall robustness of the
lt9611c bridge driver.
The HPD status read from the internal MCU may fail when the device
is not fully initialized, leading to spurious disconnect events.
This series mitigates such issues by falling back to a cached HPD
state and adds support for explicit HPD enable handling.
Additionally, it fixes DT parsing and bridge refcount handling,
corrects chip type initialization, and cleans up probe and remove
paths.
Tested on LT9611UXD platforms.
Signed-off-by: Mohit Dsor <mohit.dsor@xxxxxxxxxxxxxxxx>
Mohit Dsor (5):
drm/bridge: lt9611c: fallback to cached HPD status on read failure
drm/bridge: lt9611c: implement hpd_enable callback
drm/bridge: lt9611c: fix DT parsing and bridge refcount
drm/bridge: lt9611c: fix chip type initialization
drm/bridge: lt9611c: clean up probe error and remove paths
drivers/gpu/drm/bridge/lontium-lt9611c.c | 39 +++++++++++++++++++-----
1 file changed, 32 insertions(+), 7 deletions(-)
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2.34.1