Hi,
[added Fabio, Marek and linux-arm-kernel]
> 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?
There is a similiar one in input/touchscreen/ti-tsc-adc.txt with the name ti,wires.
But i'm not sure about the others.
Stefan
>
> > +- 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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