We are currently restricted when it comes to supporting DSI on devices
that have a non-DSI control bus. For example, DSI encoder chips are
available in the market that are configured via i2c. Configuring their
registers via DSI bus is either optional or not available at all.
These devices still
We can have devices where the data bus is MIPI DSI, but the control bus
is something else (i2c, spi etc). A typical example is i2c controlled
encoder bridge chips.
Such devices too require passing DSI specific parameters (number of data
lanes, DSI mode flags, color format etc) to their DSI host.
mipi_dsi_devices are inherently aware of their host because they
share a parent-child hierarchy in the device tree.
Non-dsi drivers that create a dummy dsi device don't have this data.
In order to get this information, they require to a phandle to the dsi
host in the device tree.
Maintain a list
