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Documentation / devicetree / bindings / spi / spi-gpio.txt




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Based on kernel version 4.0. Page generated on 2015-04-14 21:22 EST.

1	SPI-GPIO devicetree bindings
2	
3	Required properties:
4	
5	 - compatible: should be set to "spi-gpio"
6	 - #address-cells: should be set to <0x1>
7	 - ranges
8	 - gpio-sck: GPIO spec for the SCK line to use
9	 - gpio-miso: GPIO spec for the MISO line to use
10	 - gpio-mosi: GPIO spec for the MOSI line to use
11	 - cs-gpios: GPIOs to use for chipselect lines.
12	             Not needed if num-chipselects = <0>.
13	 - num-chipselects: Number of chipselect lines. Should be <0> if a single device
14	                    with no chip select is connected.
15	
16	Example:
17	
18		spi {
19			compatible = "spi-gpio";
20			#address-cells = <0x1>;
21			ranges;
22	
23			gpio-sck = <&gpio 95 0>;
24			gpio-miso = <&gpio 98 0>;
25			gpio-mosi = <&gpio 97 0>;
26			cs-gpios = <&gpio 125 0>;
27			num-chipselects = <1>;
28	
29			/* clients */
30		};
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