linux-kernel - Re: [PATCH V1] regulator: fixed: dt: add property for gpio open drain flag

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Message-ID: <4FA7E4A3.6050004@wwwdotorg.org>
Date:	Mon, 07 May 2012 09:05:07 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Laxman Dewangan <ldewangan@...dia.com>
CC:	broonie@...nsource.wolfsonmicro.com, lrg@...com,
	grant.likely@...retlab.ca, devicetree-discuss@...ts.ozlabs.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V1] regulator: fixed: dt: add property for gpio open drain
 flag

On 05/07/2012 04:28 AM, Laxman Dewangan wrote:
> Add property for the gpio flag open drain when registering
> fixed regulator.

> diff --git a/Documentation/devicetree/bindings/regulator/fixed-regulator.txt ...

> +- gpio-open-drain: GPIO is open drain type.
> +  If this property is missing then default assumption is false.

Given that there's a GPIOF_OPEN_DRAIN, isn't the GPIO specifier in the
gpio property meant to encode this somehow (the format is up to the GPIO
controller's binding) - the flags are returned by of_get_named_gpio_flags().

(especially given you asked me off-list about updating the GPIO binding
documentation with information about the flags that Tegra's binding
documented for this)
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