kernel/linux.git/drivers/gpu/drm/solomon/Makefile, branch v6.12.80

drm/solomon: Add SSD130x OLED displays SPI support

2022-04-20T16:48:17+00:00

The ssd130x driver only provides the core support for these devices but it does not have any bus transport logic. Add a driver to interface over SPI. There is a difference in the communication protocol when using 4-wire SPI instead of I2C. For the latter, a control byte that contains a D/C# field has to be sent. This field tells the controller whether the data has to be written to the command register or to the graphics display data memory. But for 4-wire SPI that control byte is not used, instead a real D/C# line must be pulled HIGH for commands data and LOW for graphics display data. For this reason the standard SPI regmap can't be used and a custom .write bus handler is needed. Signed-off-by: Javier Martinez Canillas Acked-by: Mark Brown Reviewed-by: Geert Uytterhoeven Link: https://patchwork.freedesktop.org/patch/msgid/20220419214824.335075-6-javierm@redhat.com

drm/solomon: Add SSD130x OLED displays I2C support

2022-02-16T12:29:04+00:00

The ssd130x driver only provides the core support for these devices but it does not have any bus transport logic. Add a driver to interface over I2C. Signed-off-by: Javier Martinez Canillas Reviewed-by: Andy Shevchenko Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20220214133710.3278506-5-javierm@redhat.com

drm: Add driver for Solomon SSD130x OLED displays

2022-02-16T12:29:04+00:00

This adds a DRM driver for SSD1305, SSD1306, SSD1307 and SSD1309 Solomon OLED display controllers. It's only the core part of the driver and a bus specific driver is needed for each transport interface supported by the display controllers. Signed-off-by: Javier Martinez Canillas Reviewed-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20220214133710.3278506-4-javierm@redhat.com