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| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-01-23 15:34:33 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-01-26 15:23:01 +0100 |
| commit | 15381bc7c7f52d56f87c56dd7c948ad78704b852 (patch) | |
| tree | 5c01f17ccd72d81802efdaf5da1751ee98d5f1ac /drivers/pinctrl/pinconf.h | |
| parent | 58957d2edfa19e9b8f80385ba042495058e5e60e (diff) | |
| download | linux-0-day-15381bc7c7f52d56f87c56dd7c948ad78704b852.tar.gz linux-0-day-15381bc7c7f52d56f87c56dd7c948ad78704b852.tar.xz | |
pinctrl: Allow configuration of pins from gpiolib based drivers
When a GPIO driver is backed by a pinctrl driver the GPIO driver
sometimes needs to call the pinctrl driver to configure certain things,
like whether the pin is used as input or output. In addition to this
there are other configurations applicable to GPIOs such as setting
debounce time of the GPIO.
To support this we introduce a new function pinctrl_gpio_set_config()
that can be used by gpiolib based driver to pass configuration requests
to the backing pinctrl driver.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinconf.h')
| -rw-r--r-- | drivers/pinctrl/pinconf.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h index 55c75780b3b29..bf8aff9abf323 100644 --- a/drivers/pinctrl/pinconf.h +++ b/drivers/pinctrl/pinconf.h @@ -20,6 +20,9 @@ int pinconf_map_to_setting(struct pinctrl_map const *map, void pinconf_free_setting(struct pinctrl_setting const *setting); int pinconf_apply_setting(struct pinctrl_setting const *setting); +int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, + unsigned long *configs, size_t nconfigs); + /* * You will only be interested in these if you're using PINCONF * so don't supply any stubs for these. @@ -56,6 +59,12 @@ static inline int pinconf_apply_setting(struct pinctrl_setting const *setting) return 0; } +static inline int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, + unsigned long *configs, size_t nconfigs) +{ + return -ENOTSUPP; +} + #endif #if defined(CONFIG_PINCONF) && defined(CONFIG_DEBUG_FS) |