Re: [PATCH] drm/bridge: fsl-ldb: return -EPROBE_DEFER if the panel bridge is not found

[Luca Ceresoli]

On Thu Oct 29, 2026 at 3:41 PM CET, Dario Binacchi wrote:
> of_drm_find_and_get_bridge() returns NULL if the panel has not been
> registered yet. Returning -ENODEV in this case makes the probe fail
> instead of being retried, so the LDB is never bound and the display
> pipeline never comes up:
>
>   platform 32e90000.display-controller: deferred probe pending: imx-lcdif: Failed to get bridge for endpoint0
>
> Return -EPROBE_DEFER, so that the probe is retried once the panel is
> available.
>
> Fixes: 802372cf316a ("drm/bridge: fsl-ldb: don't create a panel_bridge")
> Signed-off-by: Dario Binacchi <dario.binacchi@xxxxxxxxxxxxxxxxxxxx>

Reviewed-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>

--
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com