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-* ST Microelectronics STMPE Multi-Functional Device
-
-STMPE is an MFD device which may expose the following inbuilt devices: gpio,
-keypad, touchscreen, adc, pwm, rotator.
-
-Required properties:
- - compatible : "st,stmpe[610|801|811|1600|1601|2401|2403]"
- - reg : I2C/SPI address of the device
-
-Optional properties:
- - interrupts : The interrupt outputs from the controller
- - interrupt-controller : Marks the device node as an interrupt controller
- - wakeup-source : Marks the input device as wakable
- - st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024
- - irq-gpio : If present, which GPIO to use for event IRQ
-
-Optional properties for devices with touch and ADC (STMPE811|STMPE610):
- - st,sample-time : ADC conversion time in number of clock.
- 0 -> 36 clocks 4 -> 80 clocks (recommended)
- 1 -> 44 clocks 5 -> 96 clocks
- 2 -> 56 clocks 6 -> 124 clocks
- 3 -> 64 clocks
- - st,mod-12b : ADC Bit mode
- 0 -> 10bit ADC 1 -> 12bit ADC
- - st,ref-sel : ADC reference source
- 0 -> internal 1 -> external
- - st,adc-freq : ADC Clock speed
- 0 -> 1.625 MHz 2 || 3 -> 6.5 MHz
- 1 -> 3.25 MHz
-
-Example:
-
- stmpe1601: stmpe1601@40 {
- compatible = "st,stmpe1601";
- reg = <0x40>;
- interrupts = <26 0x4>;
- interrupt-parent = <&gpio6>;
- interrupt-controller;
-
- wakeup-source;
- st,autosleep-timeout = <1024>;
- };