From: Marc Pignat Wakeup support implementation. Signed-off-by: Marc Pignat Cc: David Brownell Cc: Alessandro Zummo Signed-off-by: Andrew Morton --- drivers/rtc/rtc-ds1374.c | 28 ++++++++++++++++++++++++++-- 1 file changed, 26 insertions(+), 2 deletions(-) diff -puN drivers/rtc/rtc-ds1374.c~rtc-ds1374-wakup-support drivers/rtc/rtc-ds1374.c --- a/drivers/rtc/rtc-ds1374.c~rtc-ds1374-wakup-support +++ a/drivers/rtc/rtc-ds1374.c @@ -388,6 +388,7 @@ static int ds1374_probe(struct i2c_clien dev_err(&client->dev, "unable to request IRQ\n"); goto out_free; } + device_init_wakeup(&client->dev, 1); } ds1374->rtc = rtc_device_register(client->name, &client->dev, @@ -401,9 +402,10 @@ static int ds1374_probe(struct i2c_clien return 0; out_irq: - if (client->irq > 0) + if (client->irq > 0) { + device_init_wakeup(&client->dev, 0); free_irq(client->irq, client); - + } out_free: i2c_set_clientdata(client, NULL); kfree(ds1374); @@ -419,6 +421,7 @@ static int __devexit ds1374_remove(struc ds1374->exiting = 1; mutex_unlock(&ds1374->mutex); + device_init_wakeup(&client->dev, 0); free_irq(client->irq, client); flush_scheduled_work(); } @@ -429,12 +432,33 @@ static int __devexit ds1374_remove(struc return 0; } +#ifdef CONFIG_PM +static int ds1374_suspend(struct i2c_client *client, pm_message_t state) +{ + if (client->irq >= 0 && device_may_wakeup(&client->dev)) + enable_irq_wake(client->irq); + return 0; +} + +static int ds1374_resume(struct i2c_client *client) +{ + if (client->irq >= 0 && device_may_wakeup(&client->dev)) + disable_irq_wake(client->irq); + return 0; +} +#else +#define ds1374_suspend NULL +#define ds1374_resume NULL +#endif + static struct i2c_driver ds1374_driver = { .driver = { .name = "rtc-ds1374", .owner = THIS_MODULE, }, .probe = ds1374_probe, + .suspend = ds1374_suspend, + .resume = ds1374_resume, .remove = __devexit_p(ds1374_remove), .id_table = ds1374_id, }; _