diff options
Diffstat (limited to 'drivers/gpio/gpio-omap.c')
| -rw-r--r-- | drivers/gpio/gpio-omap.c | 45 |
1 files changed, 41 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index b8e2ecc3eade..7fbe0c9e1fc1 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -60,6 +60,7 @@ struct gpio_bank { struct clk *dbck; struct notifier_block nb; unsigned int is_suspended:1; + unsigned int needs_resume:1; u32 mod_usage; u32 irq_usage; u32 dbck_enable_mask; @@ -896,12 +897,23 @@ static int omap_gpio_set_config(struct gpio_chip *chip, unsigned offset, unsigned long config) { u32 debounce; + int ret = -ENOTSUPP; - if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE) - return -ENOTSUPP; + switch (pinconf_to_config_param(config)) { + case PIN_CONFIG_BIAS_DISABLE: + case PIN_CONFIG_BIAS_PULL_UP: + case PIN_CONFIG_BIAS_PULL_DOWN: + ret = gpiochip_generic_config(chip, offset, config); + break; + case PIN_CONFIG_INPUT_DEBOUNCE: + debounce = pinconf_to_config_argument(config); + ret = omap_gpio_debounce(chip, offset, debounce); + break; + default: + break; + } - debounce = pinconf_to_config_argument(config); - return omap_gpio_debounce(chip, offset, debounce); + return ret; } static void omap_gpio_set(struct gpio_chip *chip, unsigned offset, int value) @@ -1504,9 +1516,34 @@ static int __maybe_unused omap_gpio_runtime_resume(struct device *dev) return 0; } +static int omap_gpio_suspend(struct device *dev) +{ + struct gpio_bank *bank = dev_get_drvdata(dev); + + if (bank->is_suspended) + return 0; + + bank->needs_resume = 1; + + return omap_gpio_runtime_suspend(dev); +} + +static int omap_gpio_resume(struct device *dev) +{ + struct gpio_bank *bank = dev_get_drvdata(dev); + + if (!bank->needs_resume) + return 0; + + bank->needs_resume = 0; + + return omap_gpio_runtime_resume(dev); +} + static const struct dev_pm_ops gpio_pm_ops = { SET_RUNTIME_PM_OPS(omap_gpio_runtime_suspend, omap_gpio_runtime_resume, NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(omap_gpio_suspend, omap_gpio_resume) }; static struct platform_driver omap_gpio_driver = { |