linux-kernel - Re: [PATCH v3 1/3] leds: rt5033: Add DT binding for RT5033

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Message-id: <562DFC47.6050904@samsung.com>
Date:	Mon, 26 Oct 2015 11:11:19 +0100
From:	Jacek Anaszewski <j.anaszewski@...sung.com>
To:	Ingi Kim <ingi2.kim@...sung.com>
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	sameo@...ux.intel.com, lee.jones@...aro.org, rpurdie@...ys.net,
	inki.dae@...sung.com, sw0312.kim@...sung.com,
	beomho.seo@...sung.com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-leds@...r.kernel.org
Subject: Re: [PATCH v3 1/3] leds: rt5033: Add DT binding for RT5033

Hi Ingi,

On 10/23/2015 07:48 AM, Ingi Kim wrote:
> This patch adds the device tree bindings for RT5033 flash LEDs.
>
> Signed-off-by: Ingi Kim <ingi2.kim@...sung.com>
> Acked-by: Rob Herring <robh@...nel.org>
> ---
>   .../devicetree/bindings/leds/leds-rt5033.txt       | 38 ++++++++++++++++++++++
>   1 file changed, 38 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/leds/leds-rt5033.txt
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-rt5033.txt b/Documentation/devicetree/bindings/leds/leds-rt5033.txt
> new file mode 100644
> index 0000000..2ef7bdc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-rt5033.txt
> @@ -0,0 +1,38 @@
> +* Richtek Technology Corporation - RT5033 Flash LED Driver
> +
> +The RT5033 Flash LED Circuit is designed for one or two LEDs driving

These bindings don't say how to handle two LEDs case.

> +for torch and strobe applications, it provides an I2C software command
> +to trigger the torch and strobe operation.
> +
> +Required properties:
> +- compatible : Must be "richtek,rt5033-led".
> +
> +A discrete LED element connected to the device must be represented by a child
> +node - see Documentation/devicetree/bindings/leds/common.txt.
> +
> +Required properties of the LED child node:
> +  See Documentation/devicetree/bindings/leds/common.txt
> +- led-max-microamp : Minimum Threshold for Timer protection
> +  is defined internally (Maximum 200mA).
> +- flash-max-microamp : Flash LED maximum current
> +- flash-max-timeout-us : Flash LED maximum timeout
> +
> +Optional properties of the LED child node:
> +- label : see Documentation/devicetree/bindings/leds/common.txt
> +
> +Example:
> +
> +rt5033 {
> +	compatible = "richtek,rt5033";
> +
> +	led {
> +		compatible = "richtek,rt5033-led";
> +
> +		flash-led {
> +			label = "rt5033-flash";
> +			led-max-microamp = <200000>;
> +			flash-max-microamp = <800000>;
> +			flash-max-timeout-us = <1216000>;
> +		};
> +	};
> +}
>


-- 
Best Regards,
Jacek Anaszewski
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