diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.c | 7 | ||||
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.h | 1 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index f279b360c20d..94cab8aa2bcc 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -125,6 +125,12 @@ static int amd_gpio_set_debounce(struct gpio_chip *gc, unsigned offset, struct amd_gpio *gpio_dev = gpiochip_get_data(gc); raw_spin_lock_irqsave(&gpio_dev->lock, flags); + + /* Use special handling for Pin0 debounce */ + pin_reg = readl(gpio_dev->base + WAKE_INT_MASTER_REG); + if (pin_reg & INTERNAL_GPIO0_DEBOUNCE) + debounce = 0; + pin_reg = readl(gpio_dev->base + offset * 4); if (debounce) { @@ -219,6 +225,7 @@ static void amd_gpio_dbg_show(struct seq_file *s, struct gpio_chip *gc) char *debounce_enable; char *wake_cntrlz; + seq_printf(s, "WAKE_INT_MASTER_REG: 0x%08x\n", readl(gpio_dev->base + WAKE_INT_MASTER_REG)); for (bank = 0; bank < gpio_dev->hwbank_num; bank++) { unsigned int time = 0; unsigned int unit = 0; diff --git a/drivers/pinctrl/pinctrl-amd.h b/drivers/pinctrl/pinctrl-amd.h index 81ae8319a1f0..1cf2d06bbd8c 100644 --- a/drivers/pinctrl/pinctrl-amd.h +++ b/drivers/pinctrl/pinctrl-amd.h @@ -17,6 +17,7 @@ #define AMD_GPIO_PINS_BANK3 32 #define WAKE_INT_MASTER_REG 0xfc +#define INTERNAL_GPIO0_DEBOUNCE (1 << 15) #define EOI_MASK (1 << 29) #define WAKE_INT_STATUS_REG0 0x2f8 |