linux-kernel - Re: [PATCH 1/2] regulator: userspace-consumer: add DT binding details

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Message-ID: <20140730155302.GE20162@leverpostej>
Date:	Wed, 30 Jul 2014 16:53:03 +0100
From:	Mark Rutland <mark.rutland@....com>
To:	Laxman Dewangan <ldewangan@...dia.com>
Cc:	"broonie@...nel.org" <broonie@...nel.org>,
	"lgirdwood@...il.com" <lgirdwood@...il.com>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	Pawel Moll <Pawel.Moll@....com>,
	"ijc+devicetree@...lion.org.uk" <ijc+devicetree@...lion.org.uk>,
	"galak@...eaurora.org" <galak@...eaurora.org>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] regulator: userspace-consumer: add DT binding details

On Wed, Jul 30, 2014 at 02:54:00PM +0100, Laxman Dewangan wrote:
> Add DT binding document and details DT binding for the driver
> regulator/userspace-consumer.
> 
> Signed-off-by: Laxman Dewangan <ldewangan@...dia.com>
> ---
>  .../bindings/regulator/userspace-consumer.txt      | 26 ++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/regulator/userspace-consumer.txt
> 
> diff --git a/Documentation/devicetree/bindings/regulator/userspace-consumer.txt b/Documentation/devicetree/bindings/regulator/userspace-consumer.txt
> new file mode 100644
> index 0000000..73c651c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/userspace-consumer.txt
> @@ -0,0 +1,26 @@
> +Userspace consumer regulators
> +
> +Required properties:
> +- compatible		: Must be "reg-userspace-consumer".

I would never expect to see "userspace" in a DT beinding string; this is
entirely a software abstraction description and has nothing to do with
the interaction of HW components.

Why do you think we need this in the DT?

Thanks,
Mark.

> +- regulator-supplies: Supply names for this regulator. This can be
> +	multiple strings.
> +
> +Optional properties:
> +- regulator-name: Name of the consumer line.
> +- regulator-boot-on: Enable regulator on booting.
> +
> +With all supply names, there should be <supply-name>-supply to pass regulators
> +handle as defined in regulator.txt.
> +
> +Example:
> +
> +	userspace-consumer {
> +		compatible = "reg-userspace-consumer";
> +
> +		regulator-name = "gps-consumer";
> +		regulator-boot-on;
> +		regulator-supplies = "vdd", "vcc", "vdd-3v3";
> +		vdd-supply = <&reg1>;
> +		vcc-supply = <&reg2>;
> +		vdd-3v3-supply = <&reg3>;
> +	};
> -- 
> 1.8.1.5
> 
> 
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