Hi, On Monday 07 December 2015 14:45:46 Rob Herring wrote: > On Sun, Dec 06, 2015 at 08:52:16PM +0100, Markus Pargmann wrote: > > This is the touchscreen conversion queue binding documentation. It uses > > the shared imx25 ADC. > > > > Signed-off-by: Markus Pargmann <mpa@xxxxxxxxxxxxxx> > > --- > > > > Notes: > > Changes in v9: > > - Updated binding descriptions > > > > Changes in v5: > > - Fix signed/unsigned comparison > > - Fix unused variable settling_time by putting it in the correct argument list > > - Use continous conversion queue with the repeat feature and a proper > > repeat-wait. Previously the touchscreen caused massive number of interrupts. > > > > .../bindings/input/touchscreen/fsl-mx25-tcq.txt | 35 ++++++++++++++++++++++ > > 1 file changed, 35 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt > > > > diff --git a/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt > > new file mode 100644 > > index 000000000000..d45e50872114 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/input/touchscreen/fsl-mx25-tcq.txt > > @@ -0,0 +1,35 @@ > > +Freescale mx25 TS conversion queue module > > + > > +mx25 touchscreen conversion queue module which controls the ADC unit of the > > +mx25 for attached touchscreens. > > + > > +Required properties: > > + - compatible: Should be "fsl,imx25-tcq". > > + - reg: Memory range of the device. > > + - interrupts: Should be the interrupt number associated with this module within > > + the tscadc unit (<0>). > > + - interrupt-parent: Should be a phandle to the tscadc unit. > > + - fsl,wires: Should be '<4>' or '<5>' > > + > > +Optional properties: > > + - fsl,pen-debounce: Pen debounce time in nanoseconds. > > This and ... > > > + - fsl,pen-threshold: Pen-down threshold for the touchscreen. This is a value > > + between 1 and 4096. It is the ratio between the internal reference voltage > > + and the measured voltage after the plate was precharged. Resistence between > > + plates and therefore the voltage decreases with pressure so that a smaller > > + value is equivalent to a higher pressure. > > + - fsl,settling-time: Settling time in nanoseconds. The settling time is before > > + the actual touch detection to wait for an even charge distribution in the > > + plate. > > ... this still need units (-ns) appended to the property name. Thanks. I wasn't aware that the property names itself should include the units. Will fix that. Best Regards, Markus -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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