From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Cameron Subject: Re: [PATCH 1/2 v2] iio: light: add DT bindings for Capella CM3605 Date: Fri, 30 Dec 2016 17:18:39 +0000 Message-ID: <2d176f85-f5ee-69b1-55a1-404b6eb86a66@kernel.org> References: <1482098155-16148-1-git-send-email-linus.walleij@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1482098155-16148-1-git-send-email-linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> Sender: linux-iio-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Linus Walleij , linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Capella Microsystems , Kevin Tsai List-Id: devicetree@vger.kernel.org On 18/12/16 21:55, Linus Walleij wrote: > This adds device tree bindings for the Capella Microsystems CM3605 > ambient light sensor and short range proximity sensor. > > Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > Cc: Capella Microsystems > Cc: Kevin Tsai > Acked-by: Rob Herring > Signed-off-by: Linus Walleij Applied > --- > ChangeLog v1->v2: > - Rename aset-resistance to aset-resistance-ohms > --- > .../devicetree/bindings/iio/light/cm3605.txt | 41 ++++++++++++++++++++++ > 1 file changed, 41 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/light/cm3605.txt > > diff --git a/Documentation/devicetree/bindings/iio/light/cm3605.txt b/Documentation/devicetree/bindings/iio/light/cm3605.txt > new file mode 100644 > index 000000000000..56331a79f9ab > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/light/cm3605.txt > @@ -0,0 +1,41 @@ > +Capella Microsystems CM3605 > +Ambient Light and Short Distance Proximity Sensor > + > +The CM3605 is an entirely analog part which however require quite a bit of > +software logic to interface a host operating system. > + > +This ALS and proximity sensor was one of the very first deployed in mobile > +handsets, notably it is used in the very first Nexus One Android phone from > +2010. > + > +Required properties: > +- compatible: must be: "capella,cm3605" > +- aset-gpios: GPIO line controlling the ASET line (drive low > + to activate the ALS, should be flagged GPIO_ACTIVE_LOW) > +- interrupts: the IRQ line (such as a GPIO) that is connected to > + the POUT (proximity sensor out) line. The edge detection must > + be set to IRQ_TYPE_EDGE_BOTH so as to detect movements toward > + and away from the proximity sensor. > +- io-channels: the ADC channel used for converting the voltage from > + AOUT to a digital representation. > +- io-channel-names: must be "aout" > + > +Optional properties: > +- vdd-supply: regulator supplying VDD power to the component. > +- capella,aset-resistance-ohms: the sensitivity calibration resistance, > + in Ohms. Valid values are: 50000, 100000, 300000 and 600000, > + as these are the resistance values that we are supplied with > + calibration curves for. If not supplied, 100 kOhm will be assumed > + but it is strongly recommended to supply this. > + > +Example: > + > +cm3605 { > + compatible = "capella,cm3605"; > + vdd-supply = <&foo_reg>; > + aset-gpios = <&foo_gpio 1 GPIO_ACTIVE_LOW>; > + capella,aset-resistance-ohms = <100000>; > + interrupts = <1 IRQ_TYPE_EDGE_BOTH>; > + io-channels = <&adc 0x01>; > + io-channel-names = "aout"; > +}; >