linux-kernel - Re: [PATCH 1/2] gpiolib: Add !CONFIG_GPIOLIB definitions of devm

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Message-Id: <20120518001108.C7AAA3E062C@localhost>
Date:	Thu, 17 May 2012 18:11:08 -0600
From:	Grant Likely <grant.likely@...retlab.ca>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Linus Walleij <linus.walleij@...ricsson.com>
Cc:	linux-kernel@...r.kernel.org,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH 1/2] gpiolib: Add !CONFIG_GPIOLIB definitions of devm_ functions

On Wed,  2 May 2012 12:46:45 +0100, Mark Brown <broonie@...nsource.wolfsonmicro.com> wrote:
> Currently the managed gpio_request() and gpio_free() are not stubbed out
> for configurations not using gpiolib - do that to aid use in drivers.
> 
> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> ---
> 
> I thought you'd applied this but it's not showing up in -next.

It was in my local tree.  I think I just forgot to push it out.

g.

> 
>  include/linux/gpio.h |   14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/include/linux/gpio.h b/include/linux/gpio.h
> index d1890d46..8e0fe1b 100644
> --- a/include/linux/gpio.h
> +++ b/include/linux/gpio.h
> @@ -66,6 +66,12 @@ static inline int devm_gpio_request(struct device *dev, unsigned gpio,
>  	return -ENOSYS;
>  }
>  
> +static inline int devm_gpio_request(struct device *dev, unsigned gpio,
> +				    const char *label)
> +{
> +	return -ENOSYS;
> +}
> +
>  static inline int gpio_request_one(unsigned gpio,
>  					unsigned long flags, const char *label)
>  {
> @@ -93,6 +99,14 @@ static inline void devm_gpio_free(struct device *dev, unsigned gpio)
>  	WARN_ON(1);
>  }
>  
> +static inline void devm_gpio_free(struct device *dev, unsigned gpio)
> +{
> +	might_sleep();
> +
> +	/* GPIO can never have been requested */
> +	WARN_ON(1);
> +}
> +
>  static inline void gpio_free_array(const struct gpio *array, size_t num)
>  {
>  	might_sleep();
> -- 
> 1.7.10
> 

-- 
Grant Likely, B.Sc, P.Eng.
Secret Lab Technologies, Ltd.
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