[PATCH v2 0/3] add alarm support for the rtc-ab-eoz9

[Liam Beguin <liambeguin@gmail.com>]

From: Liam Beguin <lvb@xiphos.com>

Add alarm support for the rtc-ab-eoz9.

The board used to test this series has the interrupt line of the RTC
connected to a circuit controlling the power of the board.

An event on the interrupt line while the board is off will power it on.
Because of these hardware limitations, the irq handler added in this
patch wasn't fully tested.

The alarm functionality was tested, with:

	$ date "2010-10-10 10:10"
	Sun Oct 10 10:10:00 UTC 2010
	$ /usr/sbin/rtcwake -u -d /dev/rtc0  -s20 --mode off
	[ ... ]
	$ # power on after 20 seconds

Changes since v1:
- drop abeoz9_reset_validity in abeoz9_rtc_set_alarm since we don't know
  for sure the time is set properly at that time.
- keep the RTC_FEATURE_ALARM change in a separate patch for easy
  backport

Liam Beguin (3):
  rtc: ab-eoz9: set regmap max_register
  rtc: ab-eoz9: add alarm support
  rtc: ab-eoz9: make use of RTC_FEATURE_ALARM

 drivers/rtc/rtc-ab-eoz9.c | 135 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 134 insertions(+), 1 deletion(-)

Range-diff against v1:
1:  7809a783807d < -:  ------------ rtc: ab-eoz9: make use of regmap local variable
2:  3b5d3fa74715 = 1:  d2c1ffa4007b rtc: ab-eoz9: set regmap max_register
3:  0a19ed90d4cc ! 2:  ac36be1f5f61 rtc: ab-eoz9: add alarm support
    @@ drivers/rtc/rtc-ab-eoz9.c: static int abeoz9_rtc_set_time(struct device *dev, st
     +	if (ret)
     +		return ret;
     +
    -+	ret = abeoz9_reset_validity(data->regmap);
    -+	if (ret)
    -+		return ret;
    -+
     +	return abeoz9_rtc_alarm_irq_enable(dev, alarm->enabled);
     +}
     +
4:  7004d40f2f36 = 3:  1987bef12ee8 rtc: ab-eoz9: make use of RTC_FEATURE_ALARM

base-commit: e49d033bddf5b565044e2abe4241353959bc9120
-- 
2.30.1.489.g328c10930387