Re: [PATCH] iio: mxs-lradc: Move binding document out of staging as well

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On Sun, Apr 10, 2016 at 01:03:18PM +0000, Harald Geyer wrote:
> commit f836c45922446df872250a12dd08e48978aceb2f moved mxs-lradc driver
> out of staging. However the binding document was left in the old place.

A move out of staging should probably imply a review. Though we don't 
have clear rules around that for bindings.

> 
> Signed-off-by: Harald Geyer <harald@xxxxxxxxx>
> ---
>  .../devicetree/bindings/iio/adc/mxs-lradc.txt      | 47 ++++++++++++++++++++++
>  .../bindings/staging/iio/adc/mxs-lradc.txt         | 47 ----------------------
>  2 files changed, 47 insertions(+), 47 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt
>  delete mode 100644 Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt b/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt
> new file mode 100644
> index 0000000..555fb11
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/mxs-lradc.txt
> @@ -0,0 +1,47 @@
> +* Freescale MXS LRADC device driver
> +
> +Required properties:
> +- compatible: Should be "fsl,imx23-lradc" for i.MX23 SoC and "fsl,imx28-lradc"
> +              for i.MX28 SoC
> +- reg: Address and length of the register set for the device
> +- interrupts: Should contain the LRADC interrupts
> +
> +Optional properties:
> +- fsl,lradc-touchscreen-wires: Number of wires used to connect the touchscreen
> +                               to LRADC. Valid value is either 4 or 5. If this
> +                               property is not present, then the touchscreen is
> +                               disabled. 5 wires is valid for i.MX28 SoC only.

Standard touchscreen property?

> +- fsl,ave-ctrl: number of samples per direction to calculate an average value.
> +                Allowed value is 1 ... 32, default is 4
> +- fsl,ave-delay: delay between consecutive samples. Allowed value is
> +                 2 ... 2048. It is used if 'fsl,ave-ctrl' > 1, counts at
> +                 2 kHz and its default is 2 (= 1 ms)

ditto.

If not, it should have units.

> +- fsl,settling: delay between plate switch to next sample. Allowed value is
> +                1 ... 2047. It counts at 2 kHz and its default is
> +                10 (= 5 ms)

ditto.

> +
> +Example for i.MX23 SoC:
> +
> +	lradc@80050000 {
> +		compatible = "fsl,imx23-lradc";
> +		reg = <0x80050000 0x2000>;
> +		interrupts = <36 37 38 39 40 41 42 43 44>;
> +		status = "okay";
> +		fsl,lradc-touchscreen-wires = <4>;
> +		fsl,ave-ctrl = <4>;
> +		fsl,ave-delay = <2>;
> +		fsl,settling = <10>;
> +	};
> +
> +Example for i.MX28 SoC:
> +
> +	lradc@80050000 {
> +		compatible = "fsl,imx28-lradc";
> +		reg = <0x80050000 0x2000>;
> +		interrupts = <10 14 15 16 17 18 19 20 21 22 23 24 25>;
> +		status = "okay";
> +		fsl,lradc-touchscreen-wires = <5>;
> +		fsl,ave-ctrl = <4>;
> +		fsl,ave-delay = <2>;
> +		fsl,settling = <10>;
> +	};
--
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