Microchip PIC32 SPI Master controller Required properties: - compatible: Should be "microchip,pic32mzda-spi". - reg: Address and length of register space for the device. - interrupts: Should contain all three spi interrupts in sequence of , , . - interrupt-names: Should be "fault", "rx", "tx" in order. - clocks: Phandle of the clock generating SPI clock on the bus. - clock-names: Should be "mck0". - cs-gpios: Specifies the gpio pins to be used for chipselects. See: Documentation/devicetree/bindings/spi/spi-bus.txt Optional properties: - dmas: Two or more DMA channel specifiers following the convention outlined in Documentation/devicetree/bindings/dma/dma.txt - dma-names: Names for the dma channels. There must be at least one channel named "spi-tx" for transmit and named "spi-rx" for receive. Example: spi1: spi@1f821000 { compatible = "microchip,pic32mzda-spi"; reg = <0x1f821000 0x200>; interrupts = <109 IRQ_TYPE_LEVEL_HIGH>, <110 IRQ_TYPE_LEVEL_HIGH>, <111 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "fault", "rx", "tx"; clocks = <&PBCLK2>; clock-names = "mck0"; cs-gpios = <&gpio3 4 GPIO_ACTIVE_LOW>; dmas = <&dma 134>, <&dma 135>; dma-names = "spi-rx", "spi-tx"; };