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2f1495fac8
Components further up in the chain might ask us for supported formats. Without this MEDIA_BUS_FMT_FIXED is assumed which then breaks display output with mxsfb since it can't determine a proper bus format. We handle the bus formats that correspond to the DSI formats the bridge can potentially output (see chapter 13.6 of the i.MX 8MQ reference manual) - which matches what xsfb can input. Fixes: b776b0f00f24 ("drm: mxsfb: Use bus_format from the nearest bridge if present") Signed-off-by: Guido Günther <agx@sigxcpu.org> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1712f2b952694fd4484dfd8576fbc5b4d7adf042.1633959458.git.agx@sigxcpu.org