Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) * Samsung's Keypad Controller device tree bindings
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) Samsung's Keypad controller is used to interface a SoC with a matrix-type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) keypad device. The keypad controller supports multiple row and column lines.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) A key can be placed at each intersection of a unique row and a unique column.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) The keypad controller can sense a key-press and key-release and report the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) event using a interrupt to the cpu.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) Required SoC Specific Properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) - compatible: should be one of the following
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)   - "samsung,s3c6410-keypad": For controllers compatible with s3c6410 keypad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)     controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)   - "samsung,s5pv210-keypad": For controllers compatible with s5pv210 keypad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)     controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) - reg: physical base address of the controller and length of memory mapped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)   region.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) - interrupts: The interrupt number to the cpu.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) Required Board Specific Properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) - samsung,keypad-num-rows: Number of row lines connected to the keypad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)   controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) - samsung,keypad-num-columns: Number of column lines connected to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)   keypad controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) - Keys represented as child nodes: Each key connected to the keypad
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)   controller is represented as a child node to the keypad controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)   device node and should include the following properties.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)   - keypad,row: the row number to which the key is connected.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)   - keypad,column: the column number to which the key is connected.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)   - linux,code: the key-code to be reported when the key is pressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)     and released.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) - pinctrl-0: Should specify pin control groups used for this controller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) - pinctrl-names: Should contain only one value - "default".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) Optional Properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) - wakeup-source: use any event on keypad as wakeup event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		 (Legacy property supported: "linux,input-wakeup")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) Optional Properties specific to linux:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) - linux,keypad-no-autorepeat: do no enable autorepeat feature.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) Example:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	keypad@100a0000 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 		compatible = "samsung,s5pv210-keypad";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		reg = <0x100A0000 0x100>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		interrupts = <173>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 		samsung,keypad-num-rows = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		samsung,keypad-num-columns = <8>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		linux,input-no-autorepeat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 		wakeup-source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 		pinctrl-names = "default";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		pinctrl-0 = <&keypad_rows &keypad_columns>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		key_1 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 			keypad,row = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 			keypad,column = <3>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 			linux,code = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 		};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 		key_2 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 			keypad,row = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 			keypad,column = <4>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 			linux,code = <3>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 		};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 		key_3 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 			keypad,row = <0>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 			keypad,column = <5>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 			linux,code = <4>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 		};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 	};