Hi, This patch series aims to add DPI color encoder support as a simple DRM bridge. A DPI color encoder simply converts input DPI color coding to output DPI color coding, like Adafruit Kippah DPI hat[1] which converts input 18-bit pixel data to 24-bit pixel data(with 2 low padding bits in every color component though). A real use case is that NXP i.MX93 11x11 EVK[2] and i.MX93 9x9 QSB[3] boards may connect a 24-bit DPI panel through the Adafruit Kippah DPI hat. The display pipeline is i.MX93 LCDIF display controller(RGB888) -> i.MX93 parallel display format configuration(RGB666) -> on-board Raspiberry Pi compatible interface(RPi)(RGB666) -> Adafruit Kippah DPI hat(RGB888 with 2 low padding bits in color components) -> 24-bit "ontat,kd50g21-40nt-a1" DPI panel [1] https://learn.adafruit.com/adafruit-dpi-display-kippah-ttl-tft/downloads [2] https://www.nxp.com/design/design-center/development-boards-and-designs/i.MX93EVK [3] https://www.nxp.com/design/design-center/development-boards-and-designs/IMX93QSB Liu Ying (5): dt-bindings: display: Document DPI color codings drm/of: Add drm_of_dpi_get_color_coding() dt-bindings: display: simple-bridge: Document DPI color encoder drm/bridge: simple-bridge: Add DPI color encoder support drm/bridge: simple-bridge: Add next panel support .../display/bridge/simple-bridge.yaml | 89 +++++++++++- .../bindings/display/dpi-color-coding.yaml | 90 ++++++++++++ drivers/gpu/drm/bridge/Kconfig | 1 + drivers/gpu/drm/bridge/simple-bridge.c | 132 ++++++++++++++++-- drivers/gpu/drm/drm_of.c | 43 ++++++ include/drm/drm_of.h | 7 + 6 files changed, 348 insertions(+), 14 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/dpi-color-coding.yaml -- 2.34.1
