drm/panel: st7701: Add support for SPI for configuration
The ST7701 supports not only MIPI DSI, but also SPI as an interface for configuration. To support a panel connected via SPI with an RGB parallel interface, add support for SPI using MIPI DBI helpers. Signed-off-by:Hironori KIKUCHI <kikuchan98@gmail.com> Reviewed-by:
Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by:
Jessica Zhang <quic_jesszhan@quicinc.com> Reviewed-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20240804061503.881283-5-kikuchan98@gmail.com Signed-off-by:
Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240804061503.881283-5-kikuchan98@gmail.com