0001 Device-tree bindings for gpio-based FSI master driver
0002 -----------------------------------------------------
0003
0004 Required properties:
0005 - compatible = "fsi-master-gpio";
0006 - clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
0007 - data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
0008
0009 Optional properties:
0010 - enable-gpios = <gpio-descriptor>; : GPIO for enable signal
0011 - trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
0012 - mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
0013 functions (eg, external FSI masters)
0014 - no-gpio-delays; : Don't add extra delays between GPIO
0015 accesses. This is useful when the HW
0016 GPIO block is running at a low enough
0017 frequency.
0018
0019 Examples:
0020
0021 fsi-master {
0022 compatible = "fsi-master-gpio", "fsi-master";
0023 clock-gpios = <&gpio 0>;
0024 data-gpios = <&gpio 1>;
0025 enable-gpios = <&gpio 2>;
0026 trans-gpios = <&gpio 3>;
0027 mux-gpios = <&gpio 4>;
0028 }
