Re: [PATCH 1/4] drm/bridge: ti-sn65dsi86: Avoid creating multiple connectors

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Hi Rob,

Thank you for the patch.

On Wed, Aug 11, 2021 at 04:52:47PM -0700, Rob Clark wrote:
> From: Rob Clark <robdclark@xxxxxxxxxxxx>
> 
> If we created our own connector because the driver does not support the
> NO_CONNECTOR flag, we don't want the downstream bridge to *also* create
> a connector.  And if this driver did pass the NO_CONNECTOR flag (and we
> supported that mode) this would change nothing.
> 
> Fixes: 4e5763f03e10 ("drm/bridge: ti-sn65dsi86: Wrap panel with panel-bridge")
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>

Makes complete sense.

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

> ---
>  drivers/gpu/drm/bridge/ti-sn65dsi86.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> index 9bf889302bcc..5d3b30b2f547 100644
> --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
> @@ -736,6 +736,9 @@ static int ti_sn_bridge_attach(struct drm_bridge *bridge,
>  	}
>  	pdata->dsi = dsi;
>  
> +	/* We never want the next bridge to *also* create a connector: */
> +	flags |= DRM_BRIDGE_ATTACH_NO_CONNECTOR;
> +
>  	/* Attach the next bridge */
>  	ret = drm_bridge_attach(bridge->encoder, pdata->next_bridge,
>  				&pdata->bridge, flags);

-- 
Regards,

Laurent Pinchart



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