diff options
Diffstat (limited to 'drivers/acpi/button.c')
| -rw-r--r-- | drivers/acpi/button.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index db35594d4df7..6d5d1832a588 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -79,11 +79,13 @@ static int acpi_button_remove(struct acpi_device *device); static void acpi_button_notify(struct acpi_device *device, u32 event); #ifdef CONFIG_PM_SLEEP +static int acpi_button_suspend(struct device *dev); static int acpi_button_resume(struct device *dev); #else +#define acpi_button_suspend NULL #define acpi_button_resume NULL #endif -static SIMPLE_DEV_PM_OPS(acpi_button_pm, NULL, acpi_button_resume); +static SIMPLE_DEV_PM_OPS(acpi_button_pm, acpi_button_suspend, acpi_button_resume); static struct acpi_driver acpi_button_driver = { .name = "button", @@ -102,6 +104,7 @@ struct acpi_button { struct input_dev *input; char phys[32]; /* for input device */ unsigned long pushed; + bool suspended; }; static BLOCKING_NOTIFIER_HEAD(acpi_lid_notifier); @@ -293,15 +296,19 @@ static void acpi_button_notify(struct acpi_device *device, u32 event) if (button->type == ACPI_BUTTON_TYPE_LID) { acpi_lid_send_state(device); } else { - int keycode = test_bit(KEY_SLEEP, input->keybit) ? - KEY_SLEEP : KEY_POWER; + int keycode; + + pm_wakeup_event(&device->dev, 0); + if (button->suspended) + break; + keycode = test_bit(KEY_SLEEP, input->keybit) ? + KEY_SLEEP : KEY_POWER; input_report_key(input, keycode, 1); input_sync(input); input_report_key(input, keycode, 0); input_sync(input); - pm_wakeup_event(&device->dev, 0); acpi_bus_generate_netlink_event( device->pnp.device_class, dev_name(&device->dev), @@ -316,11 +323,21 @@ static void acpi_button_notify(struct acpi_device *device, u32 event) } #ifdef CONFIG_PM_SLEEP +static int acpi_button_suspend(struct device *dev) +{ + struct acpi_device *device = to_acpi_device(dev); + struct acpi_button *button = acpi_driver_data(device); + + button->suspended = true; + return 0; +} + static int acpi_button_resume(struct device *dev) { struct acpi_device *device = to_acpi_device(dev); struct acpi_button *button = acpi_driver_data(device); + button->suspended = false; if (button->type == ACPI_BUTTON_TYPE_LID) return acpi_lid_send_state(device); return 0; |