Re: [PATCH 04/16] Documentation: dt-bindings: leds: add LM3633 LED binding information

From: Rob Herring
Date: Mon Nov 02 2015 - 09:53:47 EST


On Sun, Nov 1, 2015 at 11:01 PM, Milo Kim <milo.kim@xxxxxx> wrote:
> LM3633 LED device is one of TI LMU device list.
>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx>
> Cc: Lee Jones <lee.jones@xxxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: linux-leds@xxxxxxxxxxxxxxx
> Signed-off-by: Milo Kim <milo.kim@xxxxxx>
> ---
> .../devicetree/bindings/leds/leds-lm3633.txt | 28 ++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/leds-lm3633.txt
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-lm3633.txt b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
> new file mode 100644
> index 0000000..bb7f213
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-lm3633.txt
> @@ -0,0 +1,28 @@
> +TI LMU LM3633 LED device tree bindings
> +
> +Required properties:
> + - compatible: "ti,lm3633-leds"
> +
> +Child nodes:
> + Each node matches with LED control bank.
> + Please refer to the datasheet [1].
> +
> + Required properties of a child node:
> + - lvled1-used, lvled2-used, lvled3-used,
> + lvled4-used, lvled5-used, lvled6-used:
> + Low voltage LED string configuration. Type is <boolean>.
> + Please describe which output LED string is used.

What is "LED string"?

We have properties for which LED driver/channel of the parent to use
and "status" can be used to disable child nodes.

> +
> + Optional properties of a child node:
> + - channel-name: Name string for LED channel identification
> + It is used for creating LED sysfs,
> + /sys/class/leds/<channel-name>/.
> + If this property is empty, then default name is set to
> + "indicator:<id>" by the driver.

I believe "label" already provides this function.

> + - led-max-microamp: Max current setting. Type is <u32>.
> + Unit is microampere. Range is from 5000 to 30000.
> +
> +Examples: Please refer to ti-lmu dt-bindings [2].
> +
> +[1] http://www.ti.com/product/LM3633/datasheet
> +[2] Documentation/devicetree/bindings/mfd/ti-lmu.txt
> --
> 1.9.1
>
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