Hi, This patchset introduces support for SPI controllers found in the Ingenic JZ47xx family of SoCs. Of particular note, this allows to replace GPIO backed SPI on the MIPS Creator CI20 board. Mark: Checkpatch generates a `need consistent spacing around '*'` error on this patchset, however I believe this is a false positive due to it confusing a pointer with multiplication operator inside a macro. Rob: I refrained from adding SPI pin groups into the bindings, as I felt that would be enforcing a policy (SPI signals can be multiplexed on multiple pin groups on the board, per use case). Instead, I included an example pin configuration into the relevant commit description. Other controllers already present in ci20.dts do specify their pin groups, but I think this is bad practice. Do you have particular guidelines on this? Pavel: Feel free to add your Tested-by, if you still have your CI20 setup around :) I tested this driver with two SPI mode MMC/SD card readers and also with the spi-loopback test driver. Cheers, Artur Artur Rojek (2): SPI: add Ingenic JZ47xx driver. MIPS: JZ4780: CI20: DTS: add SPI controller config Paul Cercueil (1): dt-bindings: spi: Document Ingenic SPI controller bindings .../devicetree/bindings/spi/ingenic,spi.yaml | 72 +++ arch/mips/boot/dts/ingenic/ci20.dts | 9 +- arch/mips/boot/dts/ingenic/jz4780.dtsi | 44 +- drivers/spi/Kconfig | 9 + drivers/spi/Makefile | 1 + drivers/spi/spi-ingenic.c | 482 ++++++++++++++++++ 6 files changed, 602 insertions(+), 15 deletions(-) create mode 100644 Documentation/devicetree/bindings/spi/ingenic,spi.yaml create mode 100644 drivers/spi/spi-ingenic.c -- 2.33.0
