diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-amd.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 5cf3db6d78b7..b90ef3a26ae8 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -872,7 +872,7 @@ static const struct pinconf_ops amd_pinconf_ops = { static void amd_gpio_irq_init(struct amd_gpio *gpio_dev) { - struct pinctrl_desc *desc = gpio_dev->pctrl->desc; + const struct pinctrl_desc *desc = gpio_dev->pctrl->desc; unsigned long flags; u32 pin_reg, mask; int i; @@ -901,7 +901,7 @@ static void amd_gpio_irq_init(struct amd_gpio *gpio_dev) static void amd_gpio_check_pending(void) { struct amd_gpio *gpio_dev = pinctrl_dev; - struct pinctrl_desc *desc = gpio_dev->pctrl->desc; + const struct pinctrl_desc *desc = gpio_dev->pctrl->desc; int i; if (!pm_debug_messages_on) @@ -957,7 +957,7 @@ static bool amd_gpio_should_save(struct amd_gpio *gpio_dev, unsigned int pin) static int amd_gpio_suspend_hibernate_common(struct device *dev, bool is_suspend) { struct amd_gpio *gpio_dev = dev_get_drvdata(dev); - struct pinctrl_desc *desc = gpio_dev->pctrl->desc; + const struct pinctrl_desc *desc = gpio_dev->pctrl->desc; unsigned long flags; int i; u32 wake_mask = is_suspend ? WAKE_SOURCE_SUSPEND : WAKE_SOURCE_HIBERNATE; @@ -979,6 +979,17 @@ static int amd_gpio_suspend_hibernate_common(struct device *dev, bool is_suspend pin, is_suspend ? "suspend" : "hibernate"); } + /* + * debounce enabled over suspend has shown issues with a GPIO + * being unable to wake the system, as we're only interested in + * the actual wakeup event, clear it. + */ + if (gpio_dev->saved_regs[i] & (DB_CNTRl_MASK << DB_CNTRL_OFF)) { + amd_gpio_set_debounce(gpio_dev, pin, 0); + pm_pr_dbg("Clearing debounce for GPIO #%d during %s.\n", + pin, is_suspend ? "suspend" : "hibernate"); + } + raw_spin_unlock_irqrestore(&gpio_dev->lock, flags); } @@ -1001,7 +1012,7 @@ static int amd_gpio_hibernate(struct device *dev) static int amd_gpio_resume(struct device *dev) { struct amd_gpio *gpio_dev = dev_get_drvdata(dev); - struct pinctrl_desc *desc = gpio_dev->pctrl->desc; + const struct pinctrl_desc *desc = gpio_dev->pctrl->desc; unsigned long flags; int i; |