On Mon, 26 Dec 2016, Bjorn Andersson wrote: > From: Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxx> > > Add the binding for the Texas Instruments LM3533 lighting power > solution. > > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxxxxxx> > Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> For my own reference: Acked-for-MFD-by: Lee Jones <lee.jones@xxxxxxxxxx> > --- > > I had Acks from Jonathan and Rob on v3, but dropped these due to the added > compatible properties. > > Changes since v3: > - Added compatible to sub-nodes, per Lee's requested to treat them as separate > pieces. > > Documentation/devicetree/bindings/mfd/lm3533.txt | 205 +++++++++++++++++++++++ > 1 file changed, 205 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/lm3533.txt > > diff --git a/Documentation/devicetree/bindings/mfd/lm3533.txt b/Documentation/devicetree/bindings/mfd/lm3533.txt > new file mode 100644 > index 000000000000..909281096ba2 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mfd/lm3533.txt > @@ -0,0 +1,205 @@ > +Texas Instruments LM3533 binding > + > +This binding describes the Texas Instruments LM3533, a lighting power solution > +for smartphone handsets. The common properties are described directly in the > +node, while each individual component are described in an optional subnode. > + > +- compatible: > + Usage: required > + Value type: <stringlist> > + Definition: must be: > + "ti,lm3533" > + > +- reg: > + Usage: required > + Value type: <u32> > + Definition: i2c address of the LM3533 chip > + > +- als-supply: > + Usage: optional > + Value type: <prop-encoded-array> > + Definition: reference to regulator powering the V_als input; as > + specified in "../regulator/regulator.txt" > + > +- hwen-gpios: > + Usage: required > + Value type: <prop-encoded-array> > + Definition: reference to gpio pin connected to the HWEN input; as > + specified in "../gpio/gpio.txt" > + > +- ti,boost-freq-hz: > + Usage: required > + Value type: <u32> > + Definition: switch-frequency of the boost converter, must be either: > + 500000 or 1000000 > + > +- ti,boost-ovp-mv: > + Usage: required > + Value type: <u32> > + Definition: over-voltage protection limit, in mV. Must be one of: > + 16000, 24000, 32000 or 40000 > + > +- #address-cells: > + Usage: required > + Value type: <u32> > + Definition: must be 1 > + > +- #size-cells: > + Usage: required > + Value type: <u32> > + Definition: must be 0 > + > += ALS SUBNODE > +The ambient light sensor subnode carrying the light sensor related properties. > + > +- compatible: > + Usage: required > + Value type: <stringlist> > + Definition: must be: > + "ti,lm3533-als" > + > +- ti,als-resistance-ohm: > + Usage: required (unless ti,pwm-mode is specified) > + Value type: <u32> > + Definition: specifies the resistor value (R_als), in Ohm. Valid values > + ranges from 200000 to 1574 Ohm. > + > +- ti,pwm-mode: > + Usage: optional > + Value type: <empty> > + Definition: specifies, if present, that the als should operate in PWM > + mode - rather than analog mode > + > += BACKLIGHT NODES > +Backlight subnodes carrying the backlight related properties. > + > +- compatible: > + Usage: required > + Value type: <stringlist> > + Definition: must be: > + "ti,lm3533-backlight" > + > +- reg: > + Usage: required > + Value type: <u32> > + Definition: specifies which of the two backlights this node corresponds > + to > + > +- default-brightness: > + Usage: optional > + Value type: <32> > + Definition: specifies the default brightness for the backlight, in > + units of brightness [0-255] > + > +- label: > + Usage: required > + Value type: <string> > + Definition: specifies a name of this backlight > + > +- led-max-microamp: > + Usage: required > + Value type: <u32> > + Definition: specifies the max current for this backlight, in uA, as > + described in "../leds/common.txt" > + > +- ti,pwm-zones: > + Usage: optional > + Value type: <u32 list> > + Definition: lists the ALS zones to be PWM controlled for this backlight, > + the values in the list are in the range [0 - 4] > + > += LED NODES > +LED subnodes carrying the LED related properties. > + > +- compatible: > + Usage: required > + Value type: <stringlist> > + Definition: must be: > + "ti,lm3533-led" > + > +- reg: > + Usage: required > + Value type: <u32> > + Definition: specifies which of the four LEDs this node corresponds to > + > +- linux,default-trigger: > + Usage: optional > + Value type: <string> > + Definition: specifies the default trigger for the LED, as described in > + "../leds/common.txt" > + > +- label: > + Usage: required > + Value type: <string> > + Definition: specifies a name of this LED, as described in > + "../leds/common.txt" > + > +- led-max-microamp: > + Usage: required > + Value type: <u32> > + Definition: specifies the max current for this LED, in uA, as described > + in "../leds/common.txt" > + > +- ti,pwm-zones: > + Usage: optional > + Value type: <u32 list> > + Definition: lists the ALS zones to be PWM controlled for this LED, the > + values in the list are in the range [0 - 4] > + > += EXAMPLE > + > +i2c@12460000 { > + compatible = "qcom,i2c-qup-v1.1.1"; > + ... > + > + lm3533@36 { > + compatible = "ti,lm3533"; > + reg = <0x36>; > + > + als-supply = <&pm8921_l11>; > + hwen-gpios = <&pm8921_gpio 26 GPIO_ACTIVE_HIGH>; > + > + ti,boost-freq-hz = <500000>; > + ti,boost-ovp-mv = <24000>; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + als { > + compatible = "ti,lm3533-als"; > + ti,als-resistance-ohm = <200000>; > + }; > + > + backlight@0 { > + compatible = "ti,lm3533-backlight"; > + reg = <0>; > + label = "backlight"; > + > + led-max-microamp = <20200>; > + }; > + > + led@0 { > + compatible = "ti,lm3533-led"; > + reg = <0>; > + label = "red"; > + > + led-max-microamp = <5000>; > + }; > + > + led@1 { > + compatible = "ti,lm3533-led"; > + reg = <1>; > + label = "green"; > + > + led-max-microamp = <5000>; > + }; > + > + led@2 { > + compatible = "ti,lm3533-led"; > + reg = <2>; > + label = "blue"; > + > + led-max-microamp = <5000>; > + }; > + }; > + -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html