drm/i2c: tda998x: add DT support and other improvements

This patch set contains various extensions to the tda998x driver:

- simplify the i2c read/write
- code cleanup and fix some small errors
- use global constants
- don't read write-only registers
- add DT support
- use irq for connection status and EDID read

- v4
- remarks from Russell King (thank you, Russell)
- more comments about the patches
- remove 'fix a NULL pointer dereference'
- get the IRQ number from the i2c client
- remove 'get a better status of the connection'
- split the previous 'fix the ENABLE_SPACE register'
- add asounddef.h variables in 'change the frequence in the audio channel'
- add 'always enable EDID read IRQ'
- remove audio changes which will be in a next patch set about information exchanges with the audio subsystem
- v3
- remarks from Russell King
- more comments about the patches
- change variable name instead of copy (patch 7)
- add 'fix bad value in the AIF' (patch 8)
- add 'fix a NULL pointer dereference' (patch 13)
- add 'add DT documentation' (patch 16)
- remove 'use the tda998x video format when cea mode'
- remove 'change the video quantization
- remove 'fix the value of the TBG_CNTRL_1 register'
- remove 'tda998x: move the TBG_CNTRL_0 register setting'
- change fields of the register AIP_CLKSEL (patch 19)
- remove 'adjust the audio CTS to the mode clock'
- don't put a comment between field definition (patch 23)
- some more remarks may be found in the patches 10, 14, 15
- removal of the tda codec interface which will be the subject
of an other patch series
- v2
- decompose patches with different topics
- fix some bad i2c register values
- add audio codec interface

Jean-Francois Moine (24):
drm/i2c: tda998x: simplify the i2c read/write functions drm/i2c: tda998x: check more I/O errors
drm/i2c: tda998x: code cleanup
drm/i2c: tda998x: change probe message origin drm/i2c: tda998x: don't freeze the system at audio startup time drm/i2c: tda998x: force the page register at startup time drm/i2c: tda998x: set the video mode from the adjusted value drm/i2c: tda998x: fix bad value in the AIF
drm/i2c: tda998x: use HDMI constants
drm/i2c: tda998x: don't read write-only registers drm/i2c: tda998x: free the CEC device on encoder_destroy drm/i2c: tda998x: check the CEC device creation drm/i2c: tda998x: add DT support
drm/i2c: tda998x: always enable EDID read IRQ drm/i2c: tda998x: use irq for connection status and EDID read drm/i2c: tda998x: add DT documentation
drm/i2c: tda998x: fix the ENABLE_SPACE register drm/i2c: tda998x: set the PLL division factor in range 0..3 drm/i2c: tda998x: make the audio code more readable drm/i2c: tda998x: remove the unused variable ca_i2s drm/i2c: tda998x: add the active aspect in HDMI AVI frame drm/i2c: tda998x: change the frequence in the audio channel drm/i2c: tda998x: code optimization
drm/i2c: tda998x: adjust the audio clock divider for S/PDIF

 .../devicetree/bindings/drm/i2c/tda998x.txt        |  26 +
 drivers/gpu/drm/i2c/tda998x_drv.c                  | 660 +++++++++++++--------
 2 files changed, 435 insertions(+), 251 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/drm/i2c/tda998x.txt

1.8.5.3