Re: [PATCH 14/14] drm/bridge_connector: Convert to atomic_create_state

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

On Tue, Mar 10, 2026 at 05:07:06PM +0100, Maxime Ripard wrote:
> The connector created by drm_bridge_connector only initializes a
> pristine state in reset, which is equivalent to that atomic_create_state
> would expect. Let's convert to it.
> 
> Signed-off-by: Maxime Ripard <mripard@kernel.org>
> ---
>  drivers/gpu/drm/display/drm_bridge_connector.c | 15 +++++++++++----
>  1 file changed, 11 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c
> index f686aa5c0ed9b84dbe5e0957df22d08aff2f1945..2f73576783f5f69ebce277a7537accefc94645a9 100644
> --- a/drivers/gpu/drm/display/drm_bridge_connector.c
> +++ b/drivers/gpu/drm/display/drm_bridge_connector.c
> @@ -263,26 +263,33 @@ static void drm_bridge_connector_debugfs_init(struct drm_connector *connector,
>  		if (bridge->funcs->debugfs_init)
>  			bridge->funcs->debugfs_init(bridge, root);
>  	}
>  }
>  
> -static void drm_bridge_connector_reset(struct drm_connector *connector)
> +static struct drm_connector_state *
> +drm_bridge_connector_create_state(struct drm_connector *connector)
>  {
>  	struct drm_bridge_connector *bridge_connector =
>  		to_drm_bridge_connector(connector);
> +	struct drm_connector_state *conn_state;
> +
> +	conn_state = drm_atomic_helper_connector_create_state(connector);
> +	if (IS_ERR(conn_state))
> +		return conn_state;
>  
> -	drm_atomic_helper_connector_reset(connector);
>  	if (bridge_connector->bridge_hdmi)
>  		__drm_atomic_helper_connector_hdmi_reset(connector,

It would be good to rename this function too, to avoid using "reset".

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

> -							 connector->state);
> +							 conn_state);
> +
> +	return conn_state;
>  }
>  
>  static const struct drm_connector_funcs drm_bridge_connector_funcs = {
> -	.reset = drm_bridge_connector_reset,
>  	.detect = drm_bridge_connector_detect,
>  	.force = drm_bridge_connector_force,
>  	.fill_modes = drm_helper_probe_single_connector_modes,
> +	.atomic_create_state = drm_bridge_connector_create_state,
>  	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
>  	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
>  	.debugfs_init = drm_bridge_connector_debugfs_init,
>  	.oob_hotplug_event = drm_bridge_connector_oob_hotplug_event,
>  };
> 

-- 
Regards,

Laurent Pinchart