diff options
Diffstat (limited to 'drivers/rtc/rtc-m41t80.c')
| -rw-r--r-- | drivers/rtc/rtc-m41t80.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index d1bf93a87..58698d21c 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -244,7 +244,7 @@ static int m41t80_alarm_irq_enable(struct device *dev, unsigned int enabled) retval = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, flags); if (retval < 0) { - dev_info(dev, "Unable to enable alarm IRQ %d\n", retval); + dev_err(dev, "Unable to enable alarm IRQ %d\n", retval); return retval; } return 0; @@ -320,10 +320,8 @@ static int m41t80_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) alrm->time.tm_sec = bcd2bin(alarmvals[4] & 0x7f); alrm->time.tm_min = bcd2bin(alarmvals[3] & 0x7f); alrm->time.tm_hour = bcd2bin(alarmvals[2] & 0x3f); - alrm->time.tm_wday = -1; alrm->time.tm_mday = bcd2bin(alarmvals[1] & 0x3f); alrm->time.tm_mon = bcd2bin(alarmvals[0] & 0x3f); - alrm->time.tm_year = -1; alrm->enabled = !!(alarmvals[0] & M41T80_ALMON_AFE); alrm->pending = (flags & M41T80_FLAGS_AF) && alrm->enabled; @@ -337,6 +335,30 @@ static struct rtc_class_ops m41t80_rtc_ops = { .proc = m41t80_rtc_proc, }; +#ifdef CONFIG_PM_SLEEP +static int m41t80_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + if (client->irq >= 0 && device_may_wakeup(dev)) + enable_irq_wake(client->irq); + + return 0; +} + +static int m41t80_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + if (client->irq >= 0 && device_may_wakeup(dev)) + disable_irq_wake(client->irq); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(m41t80_pm, m41t80_suspend, m41t80_resume); + static ssize_t flags_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -831,10 +853,9 @@ static int m41t80_probe(struct i2c_client *client, return rc; } - rc = devm_add_action(&client->dev, m41t80_remove_sysfs_group, - &client->dev); + rc = devm_add_action_or_reset(&client->dev, m41t80_remove_sysfs_group, + &client->dev); if (rc) { - m41t80_remove_sysfs_group(&client->dev); dev_err(&client->dev, "Failed to add sysfs cleanup action: %d\n", rc); return rc; @@ -873,6 +894,7 @@ static int m41t80_remove(struct i2c_client *client) static struct i2c_driver m41t80_driver = { .driver = { .name = "rtc-m41t80", + .pm = &m41t80_pm, }, .probe = m41t80_probe, .remove = m41t80_remove, |