linux-kernel - Re: [PATCH] regulator: core: Still free GPIOs using gpio

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Date:	Tue, 1 Jul 2014 13:06:22 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Mark Brown <broonie@...nel.org>
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-kernel@...ts.linaro.org,
	Alexandre Courbot <gnurou@...il.com>,
	Mark Brown <broonie@...aro.org>
Subject: Re: [PATCH] regulator: core: Still free GPIOs using gpio_free()

On Tue, Jul 01, 2014 at 12:55:26PM +0100, Mark Brown wrote:
> From: Mark Brown <broonie@...aro.org>
> 
> Even though we mostly use GPIO descriptors internally we still use
> gpio_request_one() to request so we need to pair that with gpio_free() to
> release the GPIO.
> 
> Reported-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Mark Brown <broonie@...aro.org>

This doesn't explain the reason...  I see the current GPIO code doing this:

void gpio_free(unsigned gpio)
{
        gpiod_free(gpio_to_desc(gpio));
}
EXPORT_SYMBOL_GPL(gpio_free);

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