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    SubjectRe: [PATCH 1/2] leds: ncp5623: Add device tree binding documentation
    On Tue, Jun 21, 2016 at 09:29:13AM +0200, Florian Vaussard wrote:
    > Add device tree binding documentation for On Semiconductor NCP5623 I2C
    > LED driver. The driver can independently control the PWM of the 3
    > channels with 32 levels of intensity.
    >
    > The current delivered by the current source can be controlled using the
    > led-max-microamp property. In order to control this value, it is also
    > necessary to know the current on the Iref pin, hence the
    > onnn,led-iref-microamp property. It is usually set using an external
    > bias resistor, following Iref = Vref/Rbias with Vref=0.6V.
    >
    > Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
    > ---
    > .../devicetree/bindings/leds/leds-ncp5623.txt | 44 ++++++++++++++++++++++
    > 1 file changed, 44 insertions(+)
    > create mode 100644 Documentation/devicetree/bindings/leds/leds-ncp5623.txt
    >
    > diff --git a/Documentation/devicetree/bindings/leds/leds-ncp5623.txt b/Documentation/devicetree/bindings/leds/leds-ncp5623.txt
    > new file mode 100644
    > index 0000000..0dc8345
    > --- /dev/null
    > +++ b/Documentation/devicetree/bindings/leds/leds-ncp5623.txt
    > @@ -0,0 +1,44 @@
    > +* ON Semiconductor - NCP5623 3-Channel LED Driver
    > +
    > +The NCP5623 is a 3-channel I2C LED driver. The brightness of each
    > +channel can be independently set using 32 levels. Each LED is represented
    > +as a sub-node of the device.
    > +
    > +Required properties:
    > + - compatible: Should be "onnn,ncp5623"
    > + - reg: I2C slave address (fixed to 0x38)
    > + - #address-cells: must be 1
    > + - #size-cells: must be 0
    > + - onnn,led-iref-microamp: Current on the Iref pin in microampere
    > + - led-max-microamp: Desired maximum current for each LED in microampere
    > + (maximum 30000uA)
    > +
    > +LED sub-node properties:
    > + - reg : LED channel number (0..2)
    > + - For other LED properties see:
    > + Documentation/devicetree/bindings/leds/common.txt
    > +
    > +Example:
    > +
    > +led1: ncp5623@38 {
    > + #address-cells = <1>;
    > + #size-cells = <0>;
    > + compatible = "onnn,ncp5623";
    > + reg = <0x38>;
    > +
    > + led1_r@0 {

    Don't use underscores in node names.

    > + label = "ncp:power:red";
    > + reg = <0>;
    > + linux,default-trigger = "default-on";
    > + };
    > +
    > + led1_b@1 {
    > + label = "ncp:power:blue";
    > + reg = <1>;
    > + };
    > +
    > + led1_g@2 {
    > + label = "ncp:power:green";
    > + reg = <2>;
    > + };
    > +};
    > --
    > 2.5.0
    >

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