[PATCH 4/4] drm/bridge: tc358767: Add DSI-to-DPI mode support

[Marek Vasut]

On 11/27/21 04:24, Marek Vasut wrote:
> The TC358767/TC358867/TC9595 are all capable of operating in multiple
> modes, DPI-to-(e)DP, DSI-to-(e)DP, DSI-to-DPI. Add support for the
> DSI-to-DPI mode.
> 
> This requires skipping most of the (e)DP initialization code, which is
> currently a large part of this driver, hence it is better to have far
> simpler separate tc_dpi_bridge_funcs and their implementation.
> 
> The configuration of DPI output is also much simpler. The configuration
> of the DSI input is rather similar to the other TC bridge chips.
> 
> The Pixel PLL in DPI output mode does not have the 65..150 MHz limitation
> imposed on the (e)DP output mode, so this limitation is skipped to permit
> operating panels with far slower pixel clock, even below 9 MHz. This mode
> of operation of the PLL is valid and tested.
> 
> The detection of bridge mode is now added into tc_probe_bridge_mode(),
> where in case a DPI panel is found on port at 1 endpoint at 1, the mode is
> assumed to be DSI-to-DPI. If (e)DP is detected on port at 2, the mode is
> assumed to be DPI-to-(e)DP.
> 
> The DSI-to-(e)DP mode is not supported due to lack of proper hardware,
> but this would be some sort of mix between the two aforementioned modes.

[...]

Would it be possible to get some feedback on this patchset ?