diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index 0667b6022c3b..81169b396770 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -112,7 +113,6 @@ struct i2c_hid { wait_queue_head_t wait; /* For waiting the interrupt */ - bool irq_wake_enabled; struct mutex reset_lock; struct i2chid_ops *ops; @@ -1018,6 +1018,15 @@ int i2c_hid_core_probe(struct i2c_client *client, struct i2chid_ops *ops, if (ret < 0) goto err_powered; + /* + * The wake IRQ should be declared via device tree instead of assuming + * the IRQ can wake the system. This is here for legacy reasons and + * will be removed once the i2c-core supports querying ACPI for wake + * capabilities. + */ + if (!client->dev.power.wakeirq) + dev_pm_set_wake_irq(&client->dev, client->irq); + hid = hid_allocate_device(); if (IS_ERR(hid)) { ret = PTR_ERR(hid); @@ -1099,7 +1108,6 @@ static int i2c_hid_core_suspend(struct device *dev) struct i2c_hid *ihid = i2c_get_clientdata(client); struct hid_device *hid = ihid->hid; int ret; - int wake_status; ret = hid_driver_suspend(hid, PMSG_SUSPEND); if (ret < 0) @@ -1110,16 +1118,8 @@ static int i2c_hid_core_suspend(struct device *dev) disable_irq(client->irq); - if (device_may_wakeup(&client->dev)) { - wake_status = enable_irq_wake(client->irq); - if (!wake_status) - ihid->irq_wake_enabled = true; - else - hid_warn(hid, "Failed to enable irq wake: %d\n", - wake_status); - } else { + if (!device_may_wakeup(&client->dev)) i2c_hid_core_power_down(ihid); - } return 0; } @@ -1130,18 +1130,9 @@ static int i2c_hid_core_resume(struct device *dev) struct i2c_client *client = to_i2c_client(dev); struct i2c_hid *ihid = i2c_get_clientdata(client); struct hid_device *hid = ihid->hid; - int wake_status; - if (!device_may_wakeup(&client->dev)) { + if (!device_may_wakeup(&client->dev)) i2c_hid_core_power_up(ihid); - } else if (ihid->irq_wake_enabled) { - wake_status = disable_irq_wake(client->irq); - if (!wake_status) - ihid->irq_wake_enabled = false; - else - hid_warn(hid, "Failed to disable irq wake: %d\n", - wake_status); - } enable_irq(client->irq);