xref: /freebsd/sys/contrib/device-tree/Bindings/spi/spi-st-ssc.txt (revision 2e3507c25e42292b45a5482e116d278f5515d04d)
1STMicroelectronics SSC (SPI) Controller
2---------------------------------------
3
4Required properties:
5- compatible	: "st,comms-ssc4-spi"
6- reg		: Offset and length of the device's register set
7- interrupts	: The interrupt specifier
8- clock-names	: Must contain "ssc"
9- clocks	: Must contain an entry for each name in clock-names
10		    See ../clk/*
11- pinctrl-names	: Uses "default", can use "sleep" if provided
12		    See ../pinctrl/pinctrl-bindings.txt
13
14Optional properties:
15- cs-gpios	: List of GPIO chip selects
16		    See ../spi/spi-bus.txt
17
18Child nodes represent devices on the SPI bus
19  See ../spi/spi-bus.txt
20
21Example:
22	spi@9840000 {
23		compatible	= "st,comms-ssc4-spi";
24		reg		= <0x9840000 0x110>;
25		interrupts	= <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
26		clocks		= <&clk_s_c0_flexgen CLK_EXT2F_A9>;
27		clock-names	= "ssc";
28		pinctrl-0	= <&pinctrl_spi0_default>;
29		pinctrl-names	= "default";
30		cs-gpios	= <&pio17 5 0>;
31		#address-cells	= <1>;
32		#size-cells	= <0>;
33
34		st95hf@0{
35			compatible		= "st,st95hf";
36			reg			= <0>;
37			spi-max-frequency	= <1000000>;
38			interrupts		= <2 IRQ_TYPE_EDGE_FALLING>;
39		};
40	};
41