ADV7511/13 implementing atomic ops and bus formats

[Jesse Van Gavere]

Hello Dmitry,

...

> The atomic_check() function verifies if the passed set of changes (in the form of drm_*_state) is valid from the driver's point of view. If you have nothing to check, it's fine to skip the function.

...

Perhaps one last question on the use of atomic_check, this function is needed for TIDSS so I got to implement something either way.
Currently I just have an empty function returning 0 there.
So I looked for something better and stumbled upon your usage of the drm_atomic_helper_connector_hdmi_check function
in this commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/bridge/lontium-lt9611.c?id=ac4627c304e7a09068d0e2dba34d21e492649f8d

Would this be a good candidate for the atomic_check in adv7511 as well if I pair it with implementing the additional necessary bridge funcs (char rate valid, infoframe R/W)?

Thank you for your help.

Best regards,
Jesse