diff options
| 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 17:23:01 +0300 |
| commit | 15381bc7c7f52d56f87c56dd7c948ad78704b852 (patch) | |
| tree | 5c01f17ccd72d81802efdaf5da1751ee98d5f1ac /drivers/pinctrl/pinconf.c | |
| parent | 58957d2edfa19e9b8f80385ba042495058e5e60e (diff) | |
| download | linux-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.c')
| -rw-r--r-- | drivers/pinctrl/pinconf.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index 799048f3c8d4..c1c1ccc58267 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -200,6 +200,18 @@ int pinconf_apply_setting(struct pinctrl_setting const *setting) return 0; } +int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, + unsigned long *configs, size_t nconfigs) +{ + const struct pinconf_ops *ops; + + ops = pctldev->desc->confops; + if (!ops) + return -ENOTSUPP; + + return ops->pin_config_set(pctldev, pin, configs, nconfigs); +} + #ifdef CONFIG_DEBUG_FS static void pinconf_show_config(struct seq_file *s, struct pinctrl_dev *pctldev, |