Re: [PATCH v2 1/2] leds: add DT binding for Qualcomm PM8941 WLED block

Bryan Wu
2015-02-12T19:11:32Z

On Fri, Jan 23, 2015 at 4:54 PM, Bjorn Andersson
<bjorn.andersson@sonymobile.com> wrote:
> From: Courtney Cavin <courtney.cavin@sonymobile.com>
>
> This adds device tree binding documentation for the WLED ('White' LED)
> block on Qualcomm's PM8941 PMICs.
>
> Signed-off-by: Courtney Cavin <courtney.cavin@sonymobile.com>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>

I will merge this into my branch for next 3.20 release.

Thanks,
-Bryan

> ---
> .../devicetree/bindings/leds/leds-pm8941-wled.txt | 43 ++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt b/Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt
> new file mode 100644
> index 0000000..a85a964
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt
> @@ -0,0 +1,43 @@
> +Binding for Qualcomm PM8941 WLED driver
> +
> +Required properties:
> +- compatible: should be "qcom,pm8941-wled"
> +- reg: slave address
> +
> +Optional properties:
> +- label: The label for this led
> + See Documentation/devicetree/bindings/leds/common.txt
> +- linux,default-trigger: Default trigger assigned to the LED
> + See Documentation/devicetree/bindings/leds/common.txt
> +- qcom,cs-out: bool; enable current sink output
> +- qcom,cabc: bool; enable content adaptive backlight control
> +- qcom,ext-gen: bool; use externally generated modulator signal to dim
> +- qcom,current-limit: mA; per-string current limit; value from 0 to 25
> + default: 20mA
> +- qcom,current-boost-limit: mA; boost current limit; one of:
> + 105, 385, 525, 805, 980, 1260, 1400, 1680
> + default: 805mA
> +- qcom,switching-freq: kHz; switching frequency; one of:
> + 600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371,
> + 1600, 1920, 2400, 3200, 4800, 9600,
> + default: 1600kHz
> +- qcom,ovp: V; Over-voltage protection limit; one of:
> + 27, 29, 32, 35
> + default: 29V
> +- qcom,num-strings: #; number of led strings attached; value from 1 to 3
> + default: 2
> +
> +Example:
> +
> +pm8941-wled@d800 {
> + compatible = "qcom,pm8941-wled";
> + reg = <0xd800>;
> + label = "backlight";
> +
> + qcom,cs-out;
> + qcom,current-limit = <20>;
> + qcom,current-boost-limit = <805>;
> + qcom,switching-freq = <1600>;
> + qcom,ovp = <29>;
> + qcom,num-strings = <2>;
> +};
> --
> 1.9.1
>