Hello, The Solomon single-chip CMOS OLED/PLED driver with controller can be connected to I2C or SPI. The driver already supports I2C. This series adds support for SPI connected displays to the driver. The bindings for the SPI connected display are still not documented. The driver uses the (undocumented) solomon,ssd1306 compatible of the staging driver in Linux, but uses properties defined for the solomon,ssd1306fb-i2c compatible of the I2C driver. I moved the warning about the compatible from the commit message into the driver to have it in the same place as the use of the compatible and to allow to eventually remove it. The driver still allows to use SPI and I2C with its own hand-rolled abstraction, because the controller does not actually expose registers, but simply accepts commands or data. I followed Ahmad's suggestions how to remove the ugly #ifdefs and the driver looks a lot nicer now. Patches 1-3 adjust the SPI and I2C frameworks to make them nicer to use for drivers that support devices that may be connected via SPI or I2C. Patches 4-7 refactor the driver to have fewer locations that refer to I2C to simplify disabling the I2C support. Patch 8 actually adds the SPI support and makes I2C optional. Michael --- Changelog: v2: - add new Patches 1-3 for the SPI and I2C frameworks - use new SPI and I2C helpers to get rid of use of config macros - move warning about undocumented compatible into driver Michael Tretter (8): spi: stub device_spi_driver if SPI is disabled spi: add to_spi_device helper i2c: stub device_i2c_driver if I2C is disabled video: ssd1307fb: pass par instead of i2c client to write video: ssd1307fb: don't use i2c client for logging video: ssd1307fb: move i2c setup to single place video: ssd1307fb: use function pointer for write video: ssd1307fb: add spi support drivers/video/Kconfig | 2 +- drivers/video/ssd1307fb.c | 170 +++++++++++++++++++++++++------------- include/i2c/i2c.h | 5 ++ include/spi/spi.h | 10 +++ 4 files changed, 130 insertions(+), 57 deletions(-) -- 2.30.2 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
