[PATCH v3 4/8] MFD: ti_am335x_tscadc: add device tree binding information
Lars-Peter Clausen
lars at metafoo.de
Sat Jan 19 17:28:14 EST 2013
Hi,
On 01/18/2013 11:48 AM, Patil, Rachna wrote:
> From: "Patil, Rachna" <rachna at ti.com>
>
> Signed-off-by: Patil, Rachna <rachna at ti.com>
> ---
> .../devicetree/bindings/mfd/ti_am335x_tscadc.txt | 35 ++++++++++++++++++++
> 1 file changed, 35 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt b/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt
> new file mode 100644
> index 0000000..c13c492
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/ti_am335x_tscadc.txt
> @@ -0,0 +1,35 @@
> +Texas Instruments - TSC / ADC multi-functional device
> +
> +ti_tscadc is a multi-function device with touchscreen and ADC on chip.
> +This document describes the binding for mfd device.
> +
> +Required properties:
> +- compatible: "ti,ti-tscadc"
> +- reg: Specifies the address of MFD block
> +- interrupts: IRQ line connected to the main SoC
> +- interrupt-parent: The parent interrupt controller
The subnodes and their properties also need documentation.
> +
> +Optional properties:
> +- ti,hwmods: Hardware information related to TSC/ADC MFD device
> +
> +Example:
> +
> + tscadc: tscadc at 44e0d000 {
> + compatible = "ti,ti-tscadc";
> + reg = <0x44e0d000 0x1000>;
> +
> + interrupt-parent = <&intc>;
> + interrupts = <16>;
> + ti,hwmods = "adc_tsc";
> +
> + tsc {
> + wires = <4>;
> + x-plate-resistance = <200>;
> + steps-to-configure = <5>;
> + wire-config = <0x00 0x11 0x22 0x33>;
Non-standard properties should have a vendor prefix.
> + };
> +
> + adc {
> + adc-channels = <4>;
> + };
> + };
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