[mirror_ubuntu-jammy-kernel.git] / Documentation / devicetree / bindings / fsi / fsi-master-gpio.txt

Device-tree bindings for gpio-based FSI master driver
-----------------------------------------------------

Required properties:
 - compatible = "fsi-master-gpio";
 - clock-gpios = <gpio-descriptor>;	: GPIO for FSI clock
 - data-gpios = <gpio-descriptor>;	: GPIO for FSI data signal

Optional properties:
 - enable-gpios = <gpio-descriptor>;	: GPIO for enable signal
 - trans-gpios = <gpio-descriptor>;	: GPIO for voltage translator enable
 - mux-gpios = <gpio-descriptor>;	: GPIO for pin multiplexing with other
                                          functions (eg, external FSI masters)
 - no-gpio-delays;			: Don't add extra delays between GPIO
                                          accesses. This is useful when the HW
					  GPIO block is running at a low enough
					  frequency.

Examples:

    fsi-master {
        compatible = "fsi-master-gpio", "fsi-master";
        clock-gpios = <&gpio 0>;
        data-gpios = <&gpio 1>;
        enable-gpios = <&gpio 2>;
        trans-gpios = <&gpio 3>;
        mux-gpios = <&gpio 4>;
    }
Commit	Line	Data
777dcf73 CB	1	Device-tree bindings for gpio-based FSI master driver
	2	-----------------------------------------------------
	3
	4	Required properties:
	5	- compatible = "fsi-master-gpio";
	6	- clock-gpios = <gpio-descriptor>; : GPIO for FSI clock
	7	- data-gpios = <gpio-descriptor>; : GPIO for FSI data signal
	8
	9	Optional properties:
	10	- enable-gpios = <gpio-descriptor>; : GPIO for enable signal
	11	- trans-gpios = <gpio-descriptor>; : GPIO for voltage translator enable
	12	- mux-gpios = <gpio-descriptor>; : GPIO for pin multiplexing with other
	13	functions (eg, external FSI masters)
b4fb3aa5 BH	14	- no-gpio-delays; : Don't add extra delays between GPIO
	15	accesses. This is useful when the HW
	16	GPIO block is running at a low enough
	17	frequency.
777dcf73 CB	18
	19	Examples:
	20
	21	fsi-master {
	22	compatible = "fsi-master-gpio", "fsi-master";
	23	clock-gpios = <&gpio 0>;
	24	data-gpios = <&gpio 1>;
	25	enable-gpios = <&gpio 2>;
	26	trans-gpios = <&gpio 3>;
	27	mux-gpios = <&gpio 4>;
	28	}