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- interrupt-parent: the phandle for the gpio controller 13 (see interrupt binding[0]). 14- interrupts: (gpio) interrupt to which the chip is connected 15 (see interrupt binding[0]). 16- ti,max-rt: maximum pressure. 17- ti,fuzzx: specifies the absolute input fuzz x value. 18 If set, it will permit noise in the data up to +- the value given to the fuzz 19 parameter, that is used to filter noise from the event stream. 20- ti,fuzzy: specifies the absolute input fuzz y value. 21- ti,fuzzz: specifies the absolute input fuzz z value. 22- ti,poll-period: how much time to wait (in milliseconds) before reading again the 23 values from the tsc2007. 24 25[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt 26[1]: Documentation/devicetree/bindings/gpio/gpio.txt 27 28Example: 29 &i2c1 { 30 /* ... */ 31 tsc2007@49 { 32 compatible = "ti,tsc2007"; 33 reg = <0x49>; 34 interrupt-parent = <&gpio4>; 35 interrupts = <0x0 0x8>; 36 gpios = <&gpio4 0 0>; 37 ti,x-plate-ohms = <180>; 38 }; 39 40 /* ... */ 41 }; 42