[PATCH v3 0/3] Add bus format negotiation support for Cadence MHDP8546 driver

[Yuti Amonkar <yamonkar@cadence.com>]

This patch series add bus format negotiation support for Cadence MHDP8546 bridge driver.

The patch series has four patches in the below sequence:
1. drm: bridge: cdns-mhdp8546: Modify atomic_get_input_bus_format bridge function.
   Return all the input formats supported.
2. drm: bridge: cdns-mhdp8546: Remove setting of bus format using connector info 
   Remove the bus format configuration using connector info structure.
3. drm: bridge: cdns-mhdp8546: Retrieve the pixel format and bpc based on bus format 
   Get the pixel format and bpc based on negotiated output bus format.

This patch series is dependent on tidss series [1] for the new connector model support.

[1]
https://patchwork.kernel.org/project/dri-devel/cover/20201201121830.29704-1-nikhil.nd@ti.com/

Version History:

v3:
 - Modify the atomic_get_input_bus_fmts to return the MEDIA_BUS_FMT_RGB121212_1X36
   as default format.along as tidss currently supports only this format.

v2:
 - Remove the Add output bus format negotiation patch from the series, 
   as we use ouput format as MEDIA_BUS_FMT_FIXED and that is  the 
   default value if atomic_get_output_bus_fmts function is not implemented.
 - Return NULL if output format is not MEDIA_BUS_FMT_FIXED.
 - Return the supported color formats based on the display info structure.


Yuti Amonkar (3):
  drm: bridge: cdns-mhdp8546: Modify atomic_get_input_bus_format bridge
    function
  drm: bridge: cdns-mhdp8546: Remove setting of bus format using
    connector info
  drm: bridge: cdns-mhdp8546: Retrieve the pixel format and bpc based on
    bus format

 .../drm/bridge/cadence/cdns-mhdp8546-core.c   | 171 ++++++++++++++----
 1 file changed, 138 insertions(+), 33 deletions(-)

-- 
2.17.1