| * Texas Instruments tsc2007 touchscreen controller |
| |
| Required properties: |
| - compatible: must be "ti,tsc2007". |
| - reg: I2C address of the chip. |
| - ti,x-plate-ohms: X-plate resistance in ohms. |
| |
| Optional properties: |
| - gpios: the interrupt gpio the chip is connected to (through the penirq pin). |
| The penirq pin goes to low when the panel is touched. |
| (see GPIO binding[1] for more details). |
| - interrupts: (gpio) interrupt to which the chip is connected |
| (see interrupt binding[0]). |
| - ti,max-rt: maximum pressure. |
| - ti,fuzzx: specifies the absolute input fuzz x value. |
| If set, it will permit noise in the data up to +- the value given to the fuzz |
| parameter, that is used to filter noise from the event stream. |
| - ti,fuzzy: specifies the absolute input fuzz y value. |
| - ti,fuzzz: specifies the absolute input fuzz z value. |
| - ti,poll-period: how much time to wait (in milliseconds) before reading again the |
| values from the tsc2007. |
| |
| [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt |
| [1]: Documentation/devicetree/bindings/gpio/gpio.txt |
| |
| Example: |
| &i2c1 { |
| /* ... */ |
| tsc2007@49 { |
| compatible = "ti,tsc2007"; |
| reg = <0x49>; |
| interrupt-parent = <&gpio4>; |
| interrupts = <0x0 0x8>; |
| gpios = <&gpio4 0 0>; |
| ti,x-plate-ohms = <180>; |
| }; |
| |
| /* ... */ |
| }; |
