From: Jonas Aaberg <jonas.ab...@stericsson.com>
If a changer is attached on power off, reboot the system
into charging mode instead of powering it off.
Signed-off-by: Lee Jones <lee.jo...@linaro.org>
Signed-off-by: Jonas Aaberg <jonas.ab...@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierow...@stericsson.com>
---
drivers/mfd/ab8500-sysctrl.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index 799fb5e..01b0669 100644
--- a/drivers/mfd/ab8500-sysctrl.c
+++ b/drivers/mfd/ab8500-sysctrl.c
@@ -8,7 +8,9 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
+#include <linux/reboot.h>
#include <linux/signal.h>
+#include <linux/power_supply.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
#include <linux/mfd/abx500/ab8500-sysctrl.h>
@@ -19,6 +21,31 @@ void ab8500_power_off(void)
{
sigset_t old;
sigset_t all;
+ static char *pss[] = {"ab8500_ac", "ab8500_usb"};
+ int i;
+
+ /*
+ * If we have a charger connected and we're powering off,
+ * reboot into charge-only mode.
+ */
+
+ 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) {
+ printk(KERN_INFO
+ "Charger \"%s\" is connected. Rebooting.\n",
+ pss[i]);
+ machine_restart(NULL);
+ }
+ }
sigfillset(&all);
--
1.7.9.5
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