[PATCH 0/10] drm/i2c: tda998x: add DT support and some extensions

This patch set contains various extensions to the tda998x driver.
While these extensions may not be related, each one is based on the
previous one.

The patches are:

 1- simplify the i2c read/write
 2- fix some small errors
 3- use HDMI constants
 4- don't read write-only registers
 5- add DT support
 6- use irq for connexion status and EDID read
 7- get a better status of the connexion
 8- use the tda998x video format if cea mode
 9- fix some video errors
10- fix some audio errors

This patch set does not fix:

- the random black screen at startup time.
  This problem seems due to a bad audio input (the image appears after
  streaming an audio file).

- the need to have the audio input port also declared in the audio
  subsystem (I use a DTized version of the simple-card).

- how the TDA998x audio registers must be updated when the audio
  streaming parameters change.

- how the EDID audio capabilities act on the audio subsystem.

The resulting driver has been tested on a SolidRun Cubox with my own
Dove DRM driver.

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