diff options
| author | Jonas Aaberg <jonas.aberg@stericsson.com> | 2011-08-17 15:58:52 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2013-02-04 08:28:44 +0000 |
| commit | 0903940dcddcaa3f567a1a2308b0c55e2ce0643b (patch) | |
| tree | aa0caeaaeb211105560edc2d23e09ec1aff3ad64 /drivers/mfd/ab8500-sysctrl.c | |
| parent | 7c34d7c2b54818078678a6507ce9a79c3d479243 (diff) | |
| download | linux-0903940dcddcaa3f567a1a2308b0c55e2ce0643b.tar.bz2 | |
mfd: ab8500-sysctrl: Only reboot into charging mode if battery type is known
When a charger is connected, we usually want AB8500 based systems to
reboot into charging-only mode. However, if the battery type cannot
be identified this would be futile, so we'll just shut the system
down instead.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Diffstat (limited to 'drivers/mfd/ab8500-sysctrl.c')
| -rw-r--r-- | drivers/mfd/ab8500-sysctrl.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c index 188d22b77a28..405ca686d9f3 100644 --- a/drivers/mfd/ab8500-sysctrl.c +++ b/drivers/mfd/ab8500-sysctrl.c @@ -23,6 +23,10 @@ void ab8500_power_off(void) sigset_t all; static char *pss[] = {"ab8500_ac", "ab8500_usb"}; int i; + bool charger_present = false; + union power_supply_propval val; + struct power_supply *psy; + int ret; /* * If we have a charger connected and we're powering off, @@ -30,23 +34,36 @@ void ab8500_power_off(void) */ for (i = 0; i < ARRAY_SIZE(pss); i++) { - union power_supply_propval val; - struct power_supply *psy; - int ret; - psy = power_supply_get_by_name(pss[i]); if (!psy) continue; + ret = psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &val); if (!ret && val.intval) { + charger_present = true; + break; + } + } + + if (!charger_present) + goto shutdown; + + /* Check if battery is known */ + psy = power_supply_get_by_name("ab8500_btemp"); + if (psy) { + ret = psy->get_property(psy, POWER_SUPPLY_PROP_TECHNOLOGY, + &val); + if (!ret && val.intval != POWER_SUPPLY_TECHNOLOGY_UNKNOWN) { printk(KERN_INFO - "Charger \"%s\" is connected. Rebooting.\n", + "Charger \"%s\" is connected with known battery." + " Rebooting.\n", pss[i]); machine_restart(NULL); } } +shutdown: sigfillset(&all); if (!sigprocmask(SIG_BLOCK, &all, &old)) { |