diff options
Diffstat (limited to 'drivers/rtc/rtc-rs5c372.c')
| -rw-r--r-- | drivers/rtc/rtc-rs5c372.c | 48 |
1 files changed, 34 insertions, 14 deletions
diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c index dd14e20..6aaa155 100644 --- a/drivers/rtc/rtc-rs5c372.c +++ b/drivers/rtc/rtc-rs5c372.c @@ -299,14 +299,6 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) if (rs5c->type == rtc_rs5c372a && (buf & RS5C372A_CTRL1_SL1)) return -ENOIOCTLCMD; - case RTC_AIE_OFF: - case RTC_AIE_ON: - /* these irq management calls only make sense for chips - * which are wired up to an IRQ. - */ - if (!rs5c->has_irq) - return -ENOIOCTLCMD; - break; default: return -ENOIOCTLCMD; } @@ -317,12 +309,6 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) addr = RS5C_ADDR(RS5C_REG_CTRL1); switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - buf &= ~RS5C_CTRL1_AALE; - break; - case RTC_AIE_ON: /* alarm on */ - buf |= RS5C_CTRL1_AALE; - break; case RTC_UIE_OFF: /* update off */ buf &= ~RS5C_CTRL1_CT_MASK; break; @@ -347,6 +333,39 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) #endif +static int rs5c_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + struct i2c_client *client = to_i2c_client(dev); + struct rs5c372 *rs5c = i2c_get_clientdata(client); + unsigned char buf; + int status, addr; + + buf = rs5c->regs[RS5C_REG_CTRL1]; + + if (!rs5c->has_irq) + return -EINVAL; + + status = rs5c_get_regs(rs5c); + if (status < 0) + return status; + + addr = RS5C_ADDR(RS5C_REG_CTRL1); + if (enabled) + buf |= RS5C_CTRL1_AALE; + else + buf &= ~RS5C_CTRL1_AALE; + + if (i2c_smbus_write_byte_data(client, addr, buf) < 0) { + printk(KERN_WARNING "%s: can't update alarm\n", + rs5c->rtc->name); + status = -EIO; + } else + rs5c->regs[RS5C_REG_CTRL1] = buf; + + return status; +} + + /* NOTE: Since RTC_WKALM_{RD,SET} were originally defined for EFI, * which only exposes a polled programming interface; and since * these calls map directly to those EFI requests; we don't demand @@ -466,6 +485,7 @@ static const struct rtc_class_ops rs5c372_rtc_ops = { .set_time = rs5c372_rtc_set_time, .read_alarm = rs5c_read_alarm, .set_alarm = rs5c_set_alarm, + .alarm_irq_enable = rs5c_rtc_alarm_irq_enable, }; #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) |