Re: [PATCH 4/4] Input: tsc2004 - Document ts2004 dt bindings

Rob Herring
2015-11-02T15:20:16Z

On Fri, Oct 30, 2015 at 7:41 PM, Michael Welling <mwelling@ieee.org> wrote:
> Adds documentation for the devicetree bindings of the new tsc2004 driver.
>
> Signed-off-by: Michael Welling <mwelling@ieee.org>
> ---
> .../bindings/input/touchscreen/tsc2005.txt | 39 ++++++++++++++++++++++
> 1 file changed, 39 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
> index 09089a6..27c6082 100644
> --- a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
> +++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
> @@ -1,3 +1,42 @@
> +* Texas Instruments tsc2004 touchscreen controller
> +
> +Required properties:
> + - compatible : "ti,tsc2004"
> + - interrupts : IRQ specifier
> + - vio-supply : Regulator specifier

reg property?

> +
> +Optional properties:
> + - reset-gpios : GPIO specifier
> + - ti,x-plate-ohms : integer, resistance of the touchscreen's X plates
> + in ohm (defaults to 280)
> + - ti,esd-recovery-timeout-ms : integer, if the touchscreen does not respond after
> + the configured time (in milli seconds), the driver
> + will reset it. This is disabled by default.
> + - properties defined in touchscreen.txt
> +
> +Example:
> +
> +&i2c3 {
> + tsc2004@48 {
> + compatible = "ti,tsc2004";
> + reg = <0x48>;
> + vio-supply = <&vio>;
> +
> + reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
> + interrupts-extended = <&gpio1 27 IRQ_TYPE_EDGE_RISING>;
> +
> + touchscreen-fuzz-x = <4>;
> + touchscreen-fuzz-y = <7>;
> + touchscreen-fuzz-pressure = <2>;
> + touchscreen-size-x = <4096>;
> + touchscreen-size-y = <4096>;
> + touchscreen-max-pressure = <2048>;
> +
> + ti,x-plate-ohms = <280>;
> + ti,esd-recovery-timeout-ms = <8000>;
> + };
> +}
> +
> * Texas Instruments tsc2005 touchscreen controller
>
> Required properties:
> --
> 2.1.4
>
> --
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