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

Dmitry Baryshkov dmitry.baryshkov at linaro.org
Sun Jan 26 21:48:03 UTC 2025


On Mon, Jan 27, 2025 at 12:45:39AM +0530, Aradhya Bhatia wrote:
> From: Aradhya Bhatia <a-bhatia1 at 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 at vger.kernel.org>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> Reviewed-by: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
> Signed-off-by: Aradhya Bhatia <a-bhatia1 at 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 at linaro.org>

-- 
With best wishes
Dmitry


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