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authorLee Jones <lee.jones@linaro.org>2013-01-21 15:22:56 +0400
committerLee Jones <lee.jones@linaro.org>2013-01-23 18:39:16 +0400
commitc9ade0fca3f7939194677353097b16c9795df46b (patch)
treefa812c2a01be48859d9ece52462323a810af233d /drivers/power/ab8500_charger.c
parente07a56453b14b929cf01bf032cc3e3220094609c (diff)
downloadlinux-c9ade0fca3f7939194677353097b16c9795df46b.tar.xz
abx500-chargalg: Add new sysfs interface to get current charge status
Allow a user to check on AB8500 charging status from debugfs. Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/power/ab8500_charger.c')
-rw-r--r--drivers/power/ab8500_charger.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index 0483e7cb2268..d834566410bc 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -2764,6 +2764,9 @@ static int ab8500_charger_usb_notifier_call(struct notifier_block *nb,
enum ab8500_usb_state bm_usb_state;
unsigned mA = *((unsigned *)power);
+ if (!di)
+ return NOTIFY_DONE;
+
if (event != USB_EVENT_VBUS) {
dev_dbg(di->dev, "not a standard host, returning\n");
return NOTIFY_DONE;