diff options
| -rw-r--r-- | drivers/pinctrl/pinctrl-amd.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 1d7fdcdec4c8..b6fafed79b28 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -37,6 +37,8 @@ #include "pinctrl-utils.h" #include "pinctrl-amd.h" +static struct amd_gpio *pinctrl_dev; + static int amd_gpio_get_direction(struct gpio_chip *gc, unsigned offset) { unsigned long flags; @@ -909,6 +911,31 @@ static bool amd_gpio_should_save(struct amd_gpio *gpio_dev, unsigned int pin) return false; } +#ifdef CONFIG_ACPI +static void amd_gpio_check_pending(void) +{ + struct amd_gpio *gpio_dev = pinctrl_dev; + struct pinctrl_desc *desc = gpio_dev->pctrl->desc; + int i; + + if (!pm_debug_messages_on) + return; + + for (i = 0; i < desc->npins; i++) { + int pin = desc->pins[i].number; + u32 tmp; + + tmp = readl(gpio_dev->base + pin * 4); + if (tmp & PIN_IRQ_PENDING) + pm_pr_dbg("%s: GPIO %d is active: 0x%x.\n", __func__, pin, tmp); + } +} + +static struct acpi_s2idle_dev_ops pinctrl_amd_s2idle_dev_ops = { + .check = amd_gpio_check_pending, +}; +#endif + static int amd_gpio_suspend_hibernate_common(struct device *dev, bool is_suspend) { struct amd_gpio *gpio_dev = dev_get_drvdata(dev); @@ -942,6 +969,7 @@ static int amd_gpio_suspend_hibernate_common(struct device *dev, bool is_suspend static int amd_gpio_suspend(struct device *dev) { + pinctrl_dev = dev_get_drvdata(dev); return amd_gpio_suspend_hibernate_common(dev, true); } @@ -1181,6 +1209,9 @@ static int amd_gpio_probe(struct platform_device *pdev) platform_set_drvdata(pdev, gpio_dev); acpi_register_wakeup_handler(gpio_dev->irq, amd_gpio_check_wake, gpio_dev); +#ifdef CONFIG_ACPI + acpi_register_lps0_dev(&pinctrl_amd_s2idle_dev_ops); +#endif dev_dbg(&pdev->dev, "amd gpio driver loaded\n"); return ret; @@ -1199,6 +1230,9 @@ static void amd_gpio_remove(struct platform_device *pdev) gpiochip_remove(&gpio_dev->gc); acpi_unregister_wakeup_handler(amd_gpio_check_wake, gpio_dev); +#ifdef CONFIG_ACPI + acpi_unregister_lps0_dev(&pinctrl_amd_s2idle_dev_ops); +#endif } #ifdef CONFIG_ACPI |