linux-kernel - Re: [PATCH v4 2/2] dt-bindings: add devicetree bindings for st-pwm regulator

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Message-ID: <20140922104042.GG3290@leverpostej>
Date:	Mon, 22 Sep 2014 11:40:42 +0100
From:	Mark Rutland <mark.rutland@....com>
To:	Chris Zhong <zyw@...k-chips.com>
Cc:	"dianders@...omium.org" <dianders@...omium.org>,
	"heiko@...ech.de" <heiko@...ech.de>,
	"linux-rockchip@...ts.infradead.org" 
	<linux-rockchip@...ts.infradead.org>,
	"lee.jones@...aro.org" <lee.jones@...aro.org>,
	"broonie@...nel.org" <broonie@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <Pawel.Moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 2/2] dt-bindings: add devicetree bindings for st-pwm
 regulator

On Mon, Sep 22, 2014 at 03:53:00AM +0100, Chris Zhong wrote:
> Document the st-pwm regulator
> 
> Signed-off-by: Chris Zhong <zyw@...k-chips.com>
> 
> Adviced by Doug Anderson
> - remove regulator-always-on and regulator-boot-on from the Example
> 
> Reviewed-by: Doug Anderson <dianders@...omium.org>
> ---
> 
> Changes in v4: None
> Changes in v3:
> Adviced by Doug Anderson
> - update the Example
> 
> Changes in v2:
> Adviced by Lee Jones
> - rename the documentation
> Adviced by Doug Anderson
> - update the example
> Adviced by Mark Rutland
> - remove pwm-reg-period
> 
>  .../bindings/regulator/pwm-regulator.txt           |   27 ++++++++++++++++++++
>  1 file changed, 27 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/regulator/pwm-regulator.txt
> 
> diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
> new file mode 100644
> index 0000000..c6756a9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
> @@ -0,0 +1,27 @@
> +pwm regulator bindings
> +
> +Required properties:
> +- compatible: Should be "pwm-regulator"
> +- pwms: OF device-tree PWM specification (see PWM binding pwm.txt)
> +- voltage-table: voltage and duty table, include 2 merbers in each set of

Typo: s/merbers/members/ (I guess)

Otherwise this looks fine.

Mark.

> +  brackets, first one is voltage(unit: uv), the next is duty(unit: percent)
> +
> +Any property defined as part of the core regulator binding defined in
> +regulator.txt can also be used.
> +
> +Example:
> +	pwm_regulator {
> +		compatible = "pwm-regulator;
> +		pwms = <&pwm1 0 8448 0>;
> +
> +		voltage-table = <1114000 0>,
> +				<1095000 10>,
> +				<1076000 20>,
> +				<1056000 30>,
> +				<1036000 40>,
> +				<1016000 50>;
> +
> +		regulator-min-microvolt = <1016000>;
> +		regulator-max-microvolt = <1114000>;
> +		regulator-name = "vdd_logic";
> +	};
> -- 
> 1.7.9.5
> 
> 
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