1*4882a593Smuzhiyun* ST Keyscan controller Device Tree bindings 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunThe ST keyscan controller Device Tree binding is based on the 4*4882a593Smuzhiyunmatrix-keymap. 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunRequired properties: 7*4882a593Smuzhiyun- compatible: "st,sti-keyscan" 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun- reg: Register base address and size of st-keyscan controller. 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun- interrupts: Interrupt number for the st-keyscan controller. 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun- clocks: Must contain one entry, for the module clock. 14*4882a593Smuzhiyun See ../clocks/clock-bindings.txt for details. 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun- pinctrl: Should specify pin control groups used for this controller. 17*4882a593Smuzhiyun See ../pinctrl/pinctrl-bindings.txt for details. 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun- linux,keymap: The keymap for keys as described in the binding document 20*4882a593Smuzhiyun devicetree/bindings/input/matrix-keymap.txt. 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun- keypad,num-rows: Number of row lines connected to the keypad controller. 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun- keypad,num-columns: Number of column lines connected to the keypad 25*4882a593Smuzhiyun controller. 26*4882a593Smuzhiyun 27*4882a593SmuzhiyunOptional property: 28*4882a593Smuzhiyun- st,debounce_us: Debouncing interval time in microseconds 29*4882a593Smuzhiyun 30*4882a593SmuzhiyunExample: 31*4882a593Smuzhiyun 32*4882a593Smuzhiyunkeyscan: keyscan@fe4b0000 { 33*4882a593Smuzhiyun compatible = "st,sti-keyscan"; 34*4882a593Smuzhiyun reg = <0xfe4b0000 0x2000>; 35*4882a593Smuzhiyun interrupts = <GIC_SPI 212 IRQ_TYPE_NONE>; 36*4882a593Smuzhiyun clocks = <&CLK_SYSIN>; 37*4882a593Smuzhiyun pinctrl-names = "default"; 38*4882a593Smuzhiyun pinctrl-0 = <&pinctrl_keyscan>; 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun keypad,num-rows = <4>; 41*4882a593Smuzhiyun keypad,num-columns = <4>; 42*4882a593Smuzhiyun st,debounce_us = <5000>; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun linux,keymap = < MATRIX_KEY(0x00, 0x00, KEY_F13) 45*4882a593Smuzhiyun MATRIX_KEY(0x00, 0x01, KEY_F9) 46*4882a593Smuzhiyun MATRIX_KEY(0x00, 0x02, KEY_F5) 47*4882a593Smuzhiyun MATRIX_KEY(0x00, 0x03, KEY_F1) 48*4882a593Smuzhiyun MATRIX_KEY(0x01, 0x00, KEY_F14) 49*4882a593Smuzhiyun MATRIX_KEY(0x01, 0x01, KEY_F10) 50*4882a593Smuzhiyun MATRIX_KEY(0x01, 0x02, KEY_F6) 51*4882a593Smuzhiyun MATRIX_KEY(0x01, 0x03, KEY_F2) 52*4882a593Smuzhiyun MATRIX_KEY(0x02, 0x00, KEY_F15) 53*4882a593Smuzhiyun MATRIX_KEY(0x02, 0x01, KEY_F11) 54*4882a593Smuzhiyun MATRIX_KEY(0x02, 0x02, KEY_F7) 55*4882a593Smuzhiyun MATRIX_KEY(0x02, 0x03, KEY_F3) 56*4882a593Smuzhiyun MATRIX_KEY(0x03, 0x00, KEY_F16) 57*4882a593Smuzhiyun MATRIX_KEY(0x03, 0x01, KEY_F12) 58*4882a593Smuzhiyun MATRIX_KEY(0x03, 0x02, KEY_F8) 59*4882a593Smuzhiyun MATRIX_KEY(0x03, 0x03, KEY_F4) >; 60*4882a593Smuzhiyun }; 61