1*4882a593Smuzhiyun* ST Microelectronics STMPE Multi-Functional Device 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunSTMPE is an MFD device which may expose the following inbuilt devices: gpio, 4*4882a593Smuzhiyunkeypad, touchscreen, adc, pwm, rotator. 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunRequired properties: 7*4882a593Smuzhiyun - compatible : "st,stmpe[610|801|811|1600|1601|2401|2403]" 8*4882a593Smuzhiyun - reg : I2C/SPI address of the device 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunOptional properties: 11*4882a593Smuzhiyun - interrupts : The interrupt outputs from the controller 12*4882a593Smuzhiyun - interrupt-controller : Marks the device node as an interrupt controller 13*4882a593Smuzhiyun - wakeup-source : Marks the input device as wakable 14*4882a593Smuzhiyun - st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024 15*4882a593Smuzhiyun - irq-gpio : If present, which GPIO to use for event IRQ 16*4882a593Smuzhiyun 17*4882a593SmuzhiyunOptional properties for devices with touch and ADC (STMPE811|STMPE610): 18*4882a593Smuzhiyun - st,sample-time : ADC conversion time in number of clock. 19*4882a593Smuzhiyun 0 -> 36 clocks 4 -> 80 clocks (recommended) 20*4882a593Smuzhiyun 1 -> 44 clocks 5 -> 96 clocks 21*4882a593Smuzhiyun 2 -> 56 clocks 6 -> 124 clocks 22*4882a593Smuzhiyun 3 -> 64 clocks 23*4882a593Smuzhiyun - st,mod-12b : ADC Bit mode 24*4882a593Smuzhiyun 0 -> 10bit ADC 1 -> 12bit ADC 25*4882a593Smuzhiyun - st,ref-sel : ADC reference source 26*4882a593Smuzhiyun 0 -> internal 1 -> external 27*4882a593Smuzhiyun - st,adc-freq : ADC Clock speed 28*4882a593Smuzhiyun 0 -> 1.625 MHz 2 || 3 -> 6.5 MHz 29*4882a593Smuzhiyun 1 -> 3.25 MHz 30*4882a593Smuzhiyun 31*4882a593SmuzhiyunExample: 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun stmpe1601: stmpe1601@40 { 34*4882a593Smuzhiyun compatible = "st,stmpe1601"; 35*4882a593Smuzhiyun reg = <0x40>; 36*4882a593Smuzhiyun interrupts = <26 0x4>; 37*4882a593Smuzhiyun interrupt-parent = <&gpio6>; 38*4882a593Smuzhiyun interrupt-controller; 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun wakeup-source; 41*4882a593Smuzhiyun st,autosleep-timeout = <1024>; 42*4882a593Smuzhiyun }; 43