Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) GPIO Driver for XRA1403 16-BIT GPIO Expander With Reset Input from EXAR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) The XRA1403 is an 16-bit GPIO expander with an SPI interface. Features available:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 	- Individually programmable inputs:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 		- Internal pull-up resistors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 		- Polarity inversion
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 		- Individual interrupt enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 		- Rising edge and/or Falling edge interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 		- Input filter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	- Individually programmable outputs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 		- Output Level Control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		- Output Three-State Control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) Properties
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) ----------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) Check documentation for SPI and GPIO controllers regarding properties needed to configure the node.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	- compatible = "exar,xra1403".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	- reg - SPI id of the device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	- gpio-controller - marks the node as gpio.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	- #gpio-cells - should be two where the first cell is the pin number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		and the second one is used for optional parameters.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) Optional properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) -------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	- reset-gpios: in case available used to control the device reset line.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	- interrupt-controller - marks the node as interrupt controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	- #interrupt-cells - should be two and represents the number of cells
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		needed to encode interrupt source.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) Example
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) --------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	gpioxra0: gpio@2 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		compatible = "exar,xra1403";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		reg = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		gpio-controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 		#gpio-cells = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		interrupt-controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		#interrupt-cells = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		spi-max-frequency = <1000000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	};