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pinctrl: remove unused pin_is_valid() 

This function was used by pin_request() to pointlessly double-check
the pin validity, and it was the only user ever.

Since commit d2f6a1c6fb ("pinctrl: remove double pin validity
check."), no one has ever used it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Masahiro Yamada 2019-06-10 00:09:53 +09:00 committed by Linus Walleij
parent 6cadafb310
commit 78b99577b3
2 changed files with 0 additions and 33 deletions
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23
drivers/pinctrl/core.c
View File

@ -178,29 +178,6 @@ const char *pin_get_name(struct pinctrl_dev *pctldev, const unsigned pin)
return desc->name;
}
/**
* pin_is_valid() - check if pin exists on controller
* @pctldev: the pin control device to check the pin on
* @pin: pin to check, use the local pin controller index number
*
* This tells us whether a certain pin exist on a certain pin controller or
* not. Pin lists may be sparse, so some pins may not exist.
*/
bool pin_is_valid(struct pinctrl_dev *pctldev, int pin)
{
struct pin_desc *pindesc;
if (pin < 0)
return false;
mutex_lock(&pctldev->mutex);
pindesc = pin_desc_get(pctldev, pin);
mutex_unlock(&pctldev->mutex);
return pindesc != NULL;
}
EXPORT_SYMBOL_GPL(pin_is_valid);
/* Deletes a range of pin descriptors */
static void pinctrl_free_pindescs(struct pinctrl_dev *pctldev,
const struct pinctrl_pin_desc *pins,

10
include/linux/pinctrl/pinctrl.h
View File

@ -172,7 +172,6 @@ extern struct pinctrl_dev *devm_pinctrl_register(struct device *dev,
extern void devm_pinctrl_unregister(struct device *dev,
struct pinctrl_dev *pctldev);
extern bool pin_is_valid(struct pinctrl_dev *pctldev, int pin);
extern void pinctrl_add_gpio_range(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range);
extern void pinctrl_add_gpio_ranges(struct pinctrl_dev *pctldev,
@ -203,15 +202,6 @@ struct pinctrl_dev *of_pinctrl_get(struct device_node *np)
extern const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev);
extern const char *pinctrl_dev_get_devname(struct pinctrl_dev *pctldev);
extern void *pinctrl_dev_get_drvdata(struct pinctrl_dev *pctldev);
#else
struct pinctrl_dev;
/* Sufficiently stupid default functions when pinctrl is not in use */
static inline bool pin_is_valid(struct pinctrl_dev *pctldev, int pin)
{
return pin >= 0;
}
#endif /* !CONFIG_PINCTRL */