18c2ecf20Sopenharmony_ci* ST Microelectronics STMPE Multi-Functional Device 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciSTMPE is an MFD device which may expose the following inbuilt devices: gpio, 48c2ecf20Sopenharmony_cikeypad, touchscreen, adc, pwm, rotator. 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ciRequired properties: 78c2ecf20Sopenharmony_ci - compatible : "st,stmpe[610|801|811|1600|1601|2401|2403]" 88c2ecf20Sopenharmony_ci - reg : I2C/SPI address of the device 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ciOptional properties: 118c2ecf20Sopenharmony_ci - interrupts : The interrupt outputs from the controller 128c2ecf20Sopenharmony_ci - interrupt-controller : Marks the device node as an interrupt controller 138c2ecf20Sopenharmony_ci - wakeup-source : Marks the input device as wakable 148c2ecf20Sopenharmony_ci - st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024 158c2ecf20Sopenharmony_ci - irq-gpio : If present, which GPIO to use for event IRQ 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ciOptional properties for devices with touch and ADC (STMPE811|STMPE610): 188c2ecf20Sopenharmony_ci - st,sample-time : ADC conversion time in number of clock. 198c2ecf20Sopenharmony_ci 0 -> 36 clocks 4 -> 80 clocks (recommended) 208c2ecf20Sopenharmony_ci 1 -> 44 clocks 5 -> 96 clocks 218c2ecf20Sopenharmony_ci 2 -> 56 clocks 6 -> 124 clocks 228c2ecf20Sopenharmony_ci 3 -> 64 clocks 238c2ecf20Sopenharmony_ci - st,mod-12b : ADC Bit mode 248c2ecf20Sopenharmony_ci 0 -> 10bit ADC 1 -> 12bit ADC 258c2ecf20Sopenharmony_ci - st,ref-sel : ADC reference source 268c2ecf20Sopenharmony_ci 0 -> internal 1 -> external 278c2ecf20Sopenharmony_ci - st,adc-freq : ADC Clock speed 288c2ecf20Sopenharmony_ci 0 -> 1.625 MHz 2 || 3 -> 6.5 MHz 298c2ecf20Sopenharmony_ci 1 -> 3.25 MHz 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ciExample: 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci stmpe1601: stmpe1601@40 { 348c2ecf20Sopenharmony_ci compatible = "st,stmpe1601"; 358c2ecf20Sopenharmony_ci reg = <0x40>; 368c2ecf20Sopenharmony_ci interrupts = <26 0x4>; 378c2ecf20Sopenharmony_ci interrupt-parent = <&gpio6>; 388c2ecf20Sopenharmony_ci interrupt-controller; 398c2ecf20Sopenharmony_ci 408c2ecf20Sopenharmony_ci wakeup-source; 418c2ecf20Sopenharmony_ci st,autosleep-timeout = <1024>; 428c2ecf20Sopenharmony_ci }; 43