cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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samsung-keypad.txt (2351B)

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