> The DPHY timings are currently hard coded. Since the input > clock can be variable, the phy timings need to be variable > too. Add an additional variable to the driver data to enable > this feature to prevent breaking boards that don't support it. > > The phy_mipi_dphy_get_default_config function configures the > DPHY timings in pico-seconds, and a small macro converts those > timings into clock cycles based on the pixel clock rate.
This actually fixes a bug with the DSI84 bridge on our boards. The hardcoded settings will violate the D-PHY spec timings for lower frequencies, esp. the Ths_prepare+Ths_zero timing. Thus, the bridge will read a wrong HS sync sequence and set it's internal SoT error bit (and don't generate any RGB signals on the LVDS side). Tested-by: Michael Walle <mich...@walle.cc> Thanks! -michael
