This patch-series adds support for the Sitronix ST7567 Controller, which is a monochrome Dot Matrix LCD Controller that has SPI, I2C and parallel interfaces.
The st7571-i2c driver only has support for I2C so displays using other transport interfaces are currently not supported. The DRM_FORMAT_R1 pixel format and data commands are the same than what is used by the ST7571 controller, so only is needed a different callback that implements the expected initialization sequence for the ST7567 chip and a different callback to parse the sub-set of DT properties needed by the ST7567. Patches #1 and #2 are some trivial cleanups for the driver. Patch #3 is a preparatory change that adds the level of indirection for the DT parsing logic. Patch #4 adds a Device Tree binding schema for the ST7567 Controller. Patch #5 finally extends the st7571-i2c driver to also support the ST7567 device. Changes in v2: - Use a different parse DT function (Thomas Zimmermann). Javier Martinez Canillas (5): drm/sitronix/st7571-i2c: Fix encoder callbacks function names drm/sitronix/st7571-i2c: Log probe deferral cause for GPIO get failure drm/sitronix/st7571-i2c: Add an indirection level to parse DT dt-bindings: display: Add Sitronix ST7567 LCD Controller drm/sitronix/st7571-i2c: Add support for the ST7567 Controller .../bindings/display/sitronix,st7567.yaml | 63 +++++++++++++ MAINTAINERS | 1 + drivers/gpu/drm/sitronix/st7571-i2c.c | 94 +++++++++++++++++-- 3 files changed, 150 insertions(+), 8 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/sitronix,st7567.yaml -- 2.49.0 base-commit: 8f80b1d66f927e818e5205fccf572b2adc5e318b branch: drm-st7567-v2
