linuxdebug/Documentation/devicetree/bindings/spi/brcm,bcm2835-spi.txt

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Broadcom BCM2835 SPI0 controller
The BCM2835 contains two forms of SPI master controller, one known simply as
SPI0, and the other known as the "Universal SPI Master"; part of the
auxiliary block. This binding applies to the SPI0 controller.
Required properties:
- compatible: Should be one of "brcm,bcm2835-spi" for BCM2835/2836/2837 or
"brcm,bcm2711-spi" for BCM2711 or "brcm,bcm7211-spi" for BCM7211.
- reg: Should contain register location and length.
- interrupts: Should contain interrupt.
- clocks: The clock feeding the SPI controller.
Example:
spi@20204000 {
compatible = "brcm,bcm2835-spi";
reg = <0x7e204000 0x1000>;
interrupts = <2 22>;
clocks = <&clk_spi>;
#address-cells = <1>;
#size-cells = <0>;
};