[PATCH v4 0/2] Add LT9611UXC DSI to HDMI bridge support

[Dmitry Baryshkov]

Hi,

This series adds support for Lontium LT9611UXC bridge chip which takes
MIPI DSI as input and provides HDMI signal as output.

The chip can be found in Qualcomm RB5 platform [1], [2].

[1] https://www.qualcomm.com/products/qualcomm-robotics-rb5-platform
[2] https://www.thundercomm.com/app_en/product/1590131656070623

Changes since v3:
 - Support for firmware upgrades
 - Simplified modes table to include only used fields (w, h, refresh)
 - Added more entries to display modes table, as more modes are
   supported by the firmware
 - Wait for EDID to be available from the hardware before reading it
 - Do not store EDID in the interim buffer, lowering the size of
   per-device struct

Changes since v2:
 - Squashed connector support into main patch
 - Added comment on modes table
 - Dropped display timings support, covered by EDID
 - Dropped sleep mode support
 - Dropped hpd_status reading from ISR handler
 - Added "sentinel" comments to empty table entries

Changes since v1:
 - Fix whitespaces/indentation
 - Support working without DRM_BRIDGE_ATTACH_NO_CONNECTOR