dw_hdmi is showing wrong colour after commit 7cd70656d1285b79("drm/bridge: display-connector: implement bus fmts callbacks")

From: Biju Das
Date: Thu Jan 13 2022 - 12:45:09 EST


Hi All,

RZ/G2{H, M, N} SoC has dw_hdmi IP and it was working ok(colour) till the commit
7cd70656d1285b79("drm/bridge: display-connector: implement bus fmts callbacks").

After this patch, the screen becomes greenish(may be it is setting it into YUV format??).

By checking the code, previously it used to call get_input_fmt callback and set colour as RGB24.

After this commit, it calls get_output_fmt_callbck and returns 3 outputformats(YUV16, YUV24 and RGB24)
And get_input_fmt callback, I see the outputformat as YUV16 instead of RGB24.

Not sure, I am the only one seeing this issue with dw_HDMI driver.

Regards,
Biju