diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2012-11-20 17:25:07 +0400 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-11-21 11:55:12 +0400 |
| commit | 9afbefb227792a3c195085d662050dcca748f521 (patch) | |
| tree | 6ca22f39a4d97a73b2fb37472af596c159210ea7 /include/linux | |
| parent | 8f23ca1a73a096f21e6618d8e23df613daa5e532 (diff) | |
| download | linux-9afbefb227792a3c195085d662050dcca748f521.tar.xz | |
pinctrl: add function to retrieve range from pin
This adds a function to the pinctrl core to retrieve the GPIO
range associated with a certain pin for a certain controller.
This is needed when a pinctrl driver want to look up the
corresponding struct gpio_chip for a certain pin. As the
GPIO drivers can now create these ranges themselves, the
pinctrl driver no longer knows about all its associated GPIO
chips.
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pinctrl/pinctrl.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h index 7dee9acbd271..04d6700d99af 100644 --- a/include/linux/pinctrl/pinctrl.h +++ b/include/linux/pinctrl/pinctrl.h @@ -139,6 +139,9 @@ extern void pinctrl_remove_gpio_range(struct pinctrl_dev *pctldev, extern struct pinctrl_dev *pinctrl_find_and_add_gpio_range(const char *devname, struct pinctrl_gpio_range *range); +extern struct pinctrl_gpio_range * +pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev, + unsigned int pin); #ifdef CONFIG_OF extern struct pinctrl_dev *of_pinctrl_get(struct device_node *np); |