| Message ID | 20190318174040.17899-4-brgl@bgdev.pl |
|---|---|
| State | New |
| Headers | show |
| Series | mfd: add support for max77650 PMIC | expand |
On Mon 2019-03-18 18:40:32, Bartosz Golaszewski wrote: > From: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > Add the DT binding document for the LEDs module of max77650. > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> > Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Pavel Machek <pavel@ucw.cz> > + led@0 { > + reg = <0>; > + label = "blue:usr0"; > + }; I'd rather not see these "usrX" things... Does it have some kind of real function? Pavel
pt., 22 mar 2019 o 10:02 Pavel Machek <pavel@ucw.cz> napisał(a): > > On Mon 2019-03-18 18:40:32, Bartosz Golaszewski wrote: > > From: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > > > Add the DT binding document for the LEDs module of max77650. > > > > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > Reviewed-by: Rob Herring <robh@kernel.org> > > Acked-by: Pavel Machek <pavel@ucw.cz> > > > + led@0 { > > + reg = <0>; > > + label = "blue:usr0"; > > + }; > > I'd rather not see these "usrX" things... Does it have some kind of > real function? Not really. In the design we're using it for, it's unused and on the development kit from MAXIM it's simple three colored leds. Bart > Pavel > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
diff --git a/Documentation/devicetree/bindings/leds/leds-max77650.txt b/Documentation/devicetree/bindings/leds/leds-max77650.txt new file mode 100644 index 000000000000..3a67115cc1da --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-max77650.txt @@ -0,0 +1,57 @@ +LED driver for MAX77650 PMIC from Maxim Integrated. + +This module is part of the MAX77650 MFD device. For more details +see Documentation/devicetree/bindings/mfd/max77650.txt. + +The LED controller is represented as a sub-node of the PMIC node on +the device tree. + +This device has three current sinks. + +Required properties: +-------------------- +- compatible: Must be "maxim,max77650-led" +- #address-cells: Must be <1>. +- #size-cells: Must be <0>. + +Each LED is represented as a sub-node of the LED-controller node. Up to +three sub-nodes can be defined. + +Required properties of the sub-node: +------------------------------------ + +- reg: Must be <0>, <1> or <2>. + +Optional properties of the sub-node: +------------------------------------ + +- label: See Documentation/devicetree/bindings/leds/common.txt +- linux,default-trigger: See Documentation/devicetree/bindings/leds/common.txt + +For more details, please refer to the generic GPIO DT binding document +<devicetree/bindings/gpio/gpio.txt>. + +Example: +-------- + + leds { + compatible = "maxim,max77650-led"; + #address-cells = <1>; + #size-cells = <0>; + + led@0 { + reg = <0>; + label = "blue:usr0"; + }; + + led@1 { + reg = <1>; + label = "red:usr1"; + linux,default-trigger = "heartbeat"; + }; + + led@2 { + reg = <2>; + label = "green:usr2"; + }; + };