On Mon, 14 Dec 2015, Markus Pargmann wrote:
> This documentation describes the devicetree bindings for the
> ADC/Touchscreen unit of the i.MX25 SoC.
>
> Signed-off-by: Markus Pargmann <mpa@xxxxxxxxxxxxxx>
> Acked-by: Jonathan Cameron <jic23@xxxxxxxxxx>
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
> ---
>
> Notes:
> Changes in v9:
> - Fixed some style things.
>
> Changes in v6:
> - Removed adc-ref property and replaced it with refp and refn for positive and
> negative references. The properties are optional now as the default
> behaviour is a positive internal reference voltage and ADC GND as negative
> reference.
>
> .../devicetree/bindings/mfd/fsl-imx25-tsadc.txt | 47 ++++++++++++++++++++++
> 1 file changed, 47 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt
Binding looks fine, but you need to change the subject line of the
patch, for is it not an ARM, but MFD patch.
> diff --git a/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt b/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt
> new file mode 100644
> index 000000000000..b03505286997
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/fsl-imx25-tsadc.txt
> @@ -0,0 +1,47 @@
> +Freescale MX25 ADC/TSC MultiFunction Device (MFD)
> +
> +This device combines two general purpose conversion queues one used for general
> +ADC and the other used for touchscreens.
> +
> +Required properties:
> + - compatible: Should be "fsl,imx25-tsadc".
> + - reg: Start address and size of the memory area of
> + the device
> + - interrupts: Interrupt for this device
> + (See: ../interrupt-controller/interrupts.txt)
> + - clocks: An 'ipg' clock (See: ../clock/clock-bindings.txt)
> + - interrupt-controller: This device is an interrupt controller. It
> + controls the interrupts of both
> + conversion queues.
> + - #interrupt-cells: Should be '<1>'.
> + - #address-cells: Should be '<1>'.
> + - #size-cells: Should be '<1>'.
> +
> +This device includes two conversion queues which can be added as subnodes.
> +The first queue is for the touchscreen, the second for general purpose ADC.
> +
> +Example:
> + tscadc: tscadc@50030000 {
> + compatible = "fsl,imx25-tsadc";
> + reg = <0x50030000 0xc>;
> + interrupts = <46>;
> + clocks = <&clks 119>;
> + clock-names = "ipg";
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + tsc: tcq@50030400 {
> + compatible = "fsl,imx25-tcq";
> + reg = <0x50030400 0x60>;
> + ...
> + };
> +
> + adc: gcq@50030800 {
> + compatible = "fsl,imx25-gcq";
> + reg = <0x50030800 0x60>;
> + ...
> + };
> + };
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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