Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) Generic Parallel-in/Serial-out Shift Register GPIO Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) This binding describes generic parallel-in/serial-out shift register
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) devices that can be used for GPI (General Purpose Input). This includes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) SN74165 serial-out shift registers and the SN65HVS88x series of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) industrial serializers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) Required properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  - compatible		: Should be "pisosr-gpio".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  - gpio-controller	: Marks the device node as a GPIO controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  - #gpio-cells		: Should be two. For consumer use see gpio.txt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) Optional properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  - ngpios		: Number of used GPIO lines (0..n-1), default is 8.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  - load-gpios		: GPIO pin specifier attached to load enable, this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 			  pin is pulsed before reading from the device to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 			  load input pin values into the the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) For other required and optional properties of SPI slave
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) nodes please refer to ../spi/spi-bus.txt.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) Example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	gpio@0 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		compatible = "ti,sn65hvs882", "pisosr-gpio";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		gpio-controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		#gpio-cells = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		load-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		reg = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		spi-max-frequency = <1000000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		spi-cpol;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	};