1 Device-tree bindings for gpio-based FSI master 1 Device-tree bindings for gpio-based FSI master driver
2 ---------------------------------------------- 2 -----------------------------------------------------
3 3
4 Required properties: 4 Required properties:
5 - compatible = "fsi-master-gpio"; 5 - compatible = "fsi-master-gpio";
6 - clock-gpios = <gpio-descriptor>; : GPIO 6 - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
7 - data-gpios = <gpio-descriptor>; : GPIO 7 - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
8 8
9 Optional properties: 9 Optional properties:
10 - enable-gpios = <gpio-descriptor>; : GPIO 10 - enable-gpios = <gpio-descriptor>; : GPIO for enable signal
11 - trans-gpios = <gpio-descriptor>; : GPIO 11 - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
12 - mux-gpios = <gpio-descriptor>; : GPIO 12 - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
13 func 13 functions (eg, external FSI masters)
14 - no-gpio-delays; : Don' 14 - no-gpio-delays; : Don't add extra delays between GPIO
15 acce 15 accesses. This is useful when the HW
16 GPIO 16 GPIO block is running at a low enough
17 freq 17 frequency.
18 18
19 Examples: 19 Examples:
20 20
21 fsi-master { 21 fsi-master {
22 compatible = "fsi-master-gpio", "fsi-m 22 compatible = "fsi-master-gpio", "fsi-master";
23 clock-gpios = <&gpio 0>; 23 clock-gpios = <&gpio 0>;
24 data-gpios = <&gpio 1>; 24 data-gpios = <&gpio 1>;
25 enable-gpios = <&gpio 2>; 25 enable-gpios = <&gpio 2>;
26 trans-gpios = <&gpio 3>; 26 trans-gpios = <&gpio 3>;
27 mux-gpios = <&gpio 4>; 27 mux-gpios = <&gpio 4>;
28 } 28 }
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