| Message ID | 1481118558-8016-1-git-send-email-linus.walleij@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
On Wed, Dec 07, 2016 at 02:49:18PM +0100, Linus Walleij wrote: > This adds device tree bindings for the Capella Microsystems CM3605 > ambient light sensor and short range proximity sensor. > > Cc: devicetree@vger.kernel.org > Cc: Capella Microsystems <capellamicro@gmail.com> > Cc: Kevin Tsai <ktsai@capellamicro.com> > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > .../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..f0152559bdb9 > --- /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: the sensitivity calibration resistance, Add a '-ohms' suffix. With that, Acked-by: Rob Herring <robh@kernel.org> > + 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 = <100000>; // Ohms > + interrupts = <1 IRQ_TYPE_EDGE_BOTH>; > + io-channels = <&adc 0x01>; > + io-channel-names = "aout"; > +}; > -- > 2.7.4 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/iio/light/cm3605.txt b/Documentation/devicetree/bindings/iio/light/cm3605.txt new file mode 100644 index 000000000000..f0152559bdb9 --- /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: 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 = <100000>; // Ohms + interrupts = <1 IRQ_TYPE_EDGE_BOTH>; + io-channels = <&adc 0x01>; + io-channel-names = "aout"; +};
This adds device tree bindings for the Capella Microsystems CM3605 ambient light sensor and short range proximity sensor. Cc: devicetree@vger.kernel.org Cc: Capella Microsystems <capellamicro@gmail.com> Cc: Kevin Tsai <ktsai@capellamicro.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- .../devicetree/bindings/iio/light/cm3605.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/light/cm3605.txt -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html