linux-kernel - Re: [RESEND PATCH 5/5] devicetree: mfd: max14577: Add device tree bindings document

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Date:	Thu, 3 Jul 2014 12:32:36 +0100
From:	Mark Rutland <mark.rutland@....com>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <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>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Tomasz Figa <t.figa@...sung.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [RESEND PATCH 5/5] devicetree: mfd: max14577: Add device tree
 bindings document

Hi,

On Tue, Jul 01, 2014 at 08:02:00AM +0100, Krzysztof Kozlowski wrote:
> Add document describing device tree bindings for MAX14577 MFD
> drivers: MFD core, extcon, regulator and charger.
> 
> Both MAX14577 and MAX77836 chipsets are documented.
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> Cc: Kyungmin Park <kyungmin.park@...sung.com>
> Cc: Tomasz Figa <t.figa@...sung.com>
> Cc: devicetree@...r.kernel.org
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Pawel Moll <pawel.moll@....com>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: Ian Campbell <ijc+devicetree@...lion.org.uk>
> Cc: Kumar Gala <galak@...eaurora.org>
> Reviewed-by: Tomasz Figa <t.figa@...sung.com>
> ---
>  Documentation/devicetree/bindings/mfd/max14577.txt | 152 +++++++++++++++++++++
>  1 file changed, 152 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/max14577.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/max14577.txt b/Documentation/devicetree/bindings/mfd/max14577.txt
> new file mode 100644
> index 000000000000..b235250a7b41
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/max14577.txt
> @@ -0,0 +1,152 @@
> +Maxim MAX14577/77836 Multi-Function Device
> +
> +MAX14577 is a Multi-Function Device with Micro-USB Interface Circuit, Li+
> +Battery Charger and SFOUT LDO output for powering USB devices. It is
> +interfaced to host controller using I2C.
> +
> +MAX77836 additionally contains PMIC (with two LDO regulators) and Fuel Gauge.
> +
> +
> +Required properties:
> +- compatible : Must be "maxim,max14577" or "maxim,max77836".
> +- reg : I2C slave address for the max14577 chip (0x25 for max14577/max77836)
> +- interrupts : IRQ line for the chip.
> +- interrupt-parent :  The parent interrupt controller.
> +
> +
> +Required nodes:
> + - charger :
> +	Node for configuring the charger driver.
> +	Required properties:
> +		- compatible : "maxim,max14577-charger"
> +			or "maxim,max77836-charger"
> +		- maxim,fast-charge-timer : Timer in hours to trigger the
> +			INT3/MBCCHGERR interrupt; Valid values:
> +			- 5, 6 or 7 (hours),
> +			- 0 to disable.

I'm not sure I follow what this is any why it should be in the DT.

Could you explain what this is used for?

Thanks,
Mark.
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