diff options
| author | Mattias Wallin <mattias.wallin@stericsson.com> | 2011-03-01 11:41:55 +0100 |
|---|---|---|
| committer | Jonas ABERG <jonas.aberg@stericsson.com> | 2011-03-02 09:13:57 +0100 |
| commit | 5d1e7b4dfda080ea731dbd40e9a50d08b74e0ab0 (patch) | |
| tree | 5b4cfefade69fb922e13cb1a095e8fb9c871d46e /drivers/mfd | |
| parent | 5bae6b6626407b956e28cb6bc6aad49fb728176c (diff) | |
MFD: ab8500-core switch off status added
This patch adds switch off status file to sysfs and
as a print during boot.
ST-Ericsson ID: na
ST-Ericsson FOSS-OUT ID: Trivial
Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Change-Id: Ied62518da338f504e8e7e322ca903b2a2a0774ab
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/17254
Reviewed-by: Mattias NILSSON <mattias.i.nilsson@stericsson.com>
Reviewed-by: Martin PERSSON <martin.persson@stericsson.com>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/ab8500-core.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 6f44bfdf360..cb64aadb9e8 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -80,6 +80,7 @@ #define AB8500_IT_MASK22_REG 0x55 #define AB8500_REV_REG 0x80 +#define AB8500_SWITCH_OFF_STATUS 0x00 /* * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt @@ -764,10 +765,38 @@ static ssize_t show_chip_id(struct device *dev, return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL); } +/* + * ab8500 has switched off due to (SWITCH_OFF_STATUS): + * 0x01 Swoff bit programming + * 0x02 Thermal protection activation + * 0x04 Vbat lower then BattOk falling threshold + * 0x08 Watchdog expired + * 0x10 Non presence of 32kHz clock + * 0x20 Battery level lower than power on reset threshold + * 0x40 Power on key 1 pressed longer than 10 seconds + * 0x80 DB8500 thermal shutdown + */ +static ssize_t show_switch_off_status(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int ret; + u8 value; + struct ab8500 *ab8500; + + ab8500 = dev_get_drvdata(dev); + ret = get_register_interruptible(ab8500, AB8500_RTC, + AB8500_SWITCH_OFF_STATUS, &value); + if (ret < 0) + return ret; + return sprintf(buf, "%#x\n", value); +} + static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL); +static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL); static struct attribute *ab8500_sysfs_entries[] = { &dev_attr_chip_id.attr, + &dev_attr_switch_off_status.attr, NULL, }; @@ -809,6 +838,24 @@ int __devinit ab8500_init(struct ab8500 *ab8500) } ab8500->chip_id = value; + /* + * ab8500 has switched off due to (SWITCH_OFF_STATUS): + * 0x01 Swoff bit programming + * 0x02 Thermal protection activation + * 0x04 Vbat lower then BattOk falling threshold + * 0x08 Watchdog expired + * 0x10 Non presence of 32kHz clock + * 0x20 Battery level lower than power on reset threshold + * 0x40 Power on key 1 pressed longer than 10 seconds + * 0x80 DB8500 thermal shutdown + */ + + ret = get_register_interruptible(ab8500, AB8500_RTC, + AB8500_SWITCH_OFF_STATUS, &value); + if (ret < 0) + return ret; + dev_info(ab8500->dev, "switch off status: %#x", value); + if (plat && plat->init) plat->init(ab8500); |