Re: [PATCH 1/2] gpiolib: Add !CONFIG_GPIOLIB definitions of devm_ functions

From: Grant Likely
Date: Thu May 17 2012 - 20:11:07 EST


On Wed, 2 May 2012 12:46:45 +0100, Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> ---
>
> 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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