[PATCH v2 0/3] xtensa xtfpga SPI controller driver

Hello, this series adds driver for SPI controller used on xtfpga xtensa platform, device tree binding documentation and an entry to MAINTAINERS. Changes v1 -> v2: - support 8 bit transfers; - busy-wait for maximum 100 usec (instead of 100 msec) polling BUSY register; - use chipselect callback to

[PATCH v2 0/3] xtensa xtfpga SPI controller driver

Hello, this series adds driver for SPI controller used on xtfpga xtensa platform, device tree binding documentation and an entry to MAINTAINERS. Changes v1 - v2: - support 8 bit transfers; - busy-wait for maximum 100 usec (instead of 100 msec) polling BUSY register; - use chipselect callback to