1* Texas Instruments tsc2007 touchscreen controller 2 3Required properties: 4- compatible: must be "ti,tsc2007". 5- reg: I2C address of the chip. 6- ti,x-plate-ohms: X-plate resistance in ohms. 7 8Optional properties: 9- gpios: the interrupt gpio the chip is connected to (trough the penirq pin). 10 The penirq pin goes to low when the panel is touched. 11 (see GPIO binding[1] for more details). 12- interrupts: (gpio) interrupt to which the chip is connected 13 (see interrupt binding[0]). 14- ti,max-rt: maximum pressure. 15- ti,fuzzx: specifies the absolute input fuzz x value. 16 If set, it will permit noise in the data up to +- the value given to the fuzz 17 parameter, that is used to filter noise from the event stream. 18- ti,fuzzy: specifies the absolute input fuzz y value. 19- ti,fuzzz: specifies the absolute input fuzz z value. 20- ti,poll-period: how much time to wait (in milliseconds) before reading again the 21 values from the tsc2007. 22 23[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt 24[1]: Documentation/devicetree/bindings/gpio/gpio.txt 25 26Example: 27 &i2c1 { 28 /* ... */ 29 tsc2007@49 { 30 compatible = "ti,tsc2007"; 31 reg = <0x49>; 32 interrupt-parent = <&gpio4>; 33 interrupts = <0x0 0x8>; 34 gpios = <&gpio4 0 0>; 35 ti,x-plate-ohms = <180>; 36 }; 37 38 /* ... */ 39 }; 40