linux-kernel - Re: [PATCH/RFC v8 11/14] DT: Add documentation for the mfd Maxim max77693

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Message-ID: <20141129192607.GB17355@amd>
Date:	Sat, 29 Nov 2014 20:26:07 +0100
From:	Pavel Machek <pavel@....cz>
To:	Jacek Anaszewski <j.anaszewski@...sung.com>
Cc:	linux-leds@...r.kernel.org, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org, kyungmin.park@...sung.com,
	b.zolnierkie@...sung.com, cooloney@...il.com, rpurdie@...ys.net,
	sakari.ailus@....fi, s.nawrocki@...sung.com,
	Andrzej Hajda <a.hajda@...sung.com>,
	Lee Jones <lee.jones@...aro.org>,
	SangYoung Son <hello.son@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org
Subject: Re: [PATCH/RFC v8 11/14] DT: Add documentation for the mfd Maxim
 max77693

Hi!

> diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt
> index 01e9f30..50a8dad 100644
> --- a/Documentation/devicetree/bindings/mfd/max77693.txt
> +++ b/Documentation/devicetree/bindings/mfd/max77693.txt
> @@ -41,6 +41,62 @@ Optional properties:
>  	 To get more informations, please refer to documentaion.
>  	[*] refer Documentation/devicetree/bindings/pwm/pwm.txt
>  
> +- led-flash : the LED submodule device node
> +
> +There are two led outputs available - fled1 and fled2. Each of them can
> +control a separate led or they can be connected together to double
> +the maximum current for a single connected led. One led is represented
> +by one child node.
> +
> +Required properties:
> +- compatible : must be "maxim,max77693-flash"
> +
> +Optional properties:
> +- maxim,fleds : array of current outputs in order: fled1, fled2
> +	Note: both current outputs can be connected to a single led
> +	Possible values:
> +		0 - the output is left disconnected,
> +		1 - a diode is connected to the output.

Is this one needed? Just ommit child note if it is not there.

> +- maxim,trigger-type : Array of trigger types in order: flash, torch
> +	Possible trigger types:
> +		0 - Rising edge of the signal triggers the flash/torch,
> +		1 - Signal level controls duration of the flash/torch.
> +- maxim,trigger : Array of flags indicating which trigger can activate given led
> +	in order: fled1, fled2
> +	Possible flag values (can be combined):
> +		1 - FLASH pin of the chip,
> +		2 - TORCH pin of the chip,
> +		4 - software via I2C command.

Is it good idea to have bitfields like this?

Make these required properties of the subnode?
     									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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