drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver

Add driver for TI SN65DSI83 Single-link DSI to Single-link LVDS bridge and TI SN65DSI84 Single-link DSI to Dual-link or 2x Single-link LVDS bridge. TI SN65DSI85 is unsupported due to lack of hardware to test on, but easy to add.

The driver operates the chip via I2C bus. Currently the LVDS clock are always derived from DSI clock lane, which is the usual mode of operation. Support for clock from external oscillator is not implemented, but it is easy to add if ever needed. Only RGB888 pixel format is implemented, the LVDS666 is not supported, but could be added if needed.

Reviewed-by: Linus Walleij linus.walleij@linaro.org Reviewed-by: Frieder Schrempf frieder.schrempf@kontron.de Tested-by: Frieder Schrempf frieder.schrempf@kontron.de Tested-by: Adam Ford aford173@gmail.com Signed-off-by: Marek Vasut marex@denx.de Cc: Douglas Anderson dianders@chromium.org Cc: Jagan Teki jagan@amarulasolutions.com Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: Linus Walleij linus.walleij@linaro.org Cc: Loic Poulain loic.poulain@linaro.org Cc: Philippe Schenker philippe.schenker@toradex.com Cc: Sam Ravnborg sam@ravnborg.org Cc: Stephen Boyd swboyd@chromium.org Cc: Valentin Raevsky valentin@compulab.co.il To: dri-devel@lists.freedesktop.org Signed-off-by: Robert Foss robert.foss@linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20210607174258.16300-2-marex@denx.de