Re: [PATCH v8 01/13] drm/bridge: cdns-dsi: Fix connecting to next bridge

Dmitry Baryshkov
2025-01-26T21:48:08Z

On Mon, Jan 27, 2025 at 12:45:39AM +0530, Aradhya Bhatia wrote:
> From: Aradhya Bhatia <a-bhatia1@ti.com>
>
> Fix the OF node pointer passed to the of_drm_find_bridge() call to find
> the next bridge in the display chain.
>
> The code to find the next panel (and create its panel-bridge) works
> fine, but to find the next (non-panel) bridge does not.
>
> To find the next bridge in the pipeline, we need to pass "np" - the OF
> node pointer of the next entity in the devicetree chain. Passing
> "of_node" to of_drm_find_bridge (which is what the code does currently)
> will fetch the bridge for the cdns-dsi which is not what's required.
>
> Fix that.
>
> Fixes: e19233955d9e ("drm/bridge: Add Cadence DSI driver")
> Cc: Stable List <stable@vger.kernel.org>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
> ---
> drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

--
With best wishes
Dmitry