[PATCH V2] drm: mxsfb: Use bus_format from the nearest bridge if present

[Sam Ravnborg]

On Mon, Jul 26, 2021 at 09:44:57PM +0200, Marek Vasut wrote:
> In case there is a bridge connected to the LCDIF, use bus_format
> from the bridge, otherwise behave as before and use bus_format
> from the connector. This way, even if there are multiple bridges
> in the display pipeline, the LCDIF will use the correct format.
> 
> Reviewed-by: Lucas Stach <l.stach at pengutronix.de>
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Daniel Abrecht <public at danielabrecht.ch>
> Cc: Emil Velikov <emil.l.velikov at gmail.com>
> Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> Cc: Lucas Stach <l.stach at pengutronix.de>
> Cc: Stefan Agner <stefan at agner.ch>
> ---
> V2: Drop null checks for variables which must always be non-null,
>     state and bridge_state

Applied this and 3 other pending mxsfb patches from Marek to
drm-misc-fixes.

	Sam