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authorVic Yang <victoryang@chromium.org>2014-10-08 08:57:24 -0700
committerchrome-internal-fetch <chrome-internal-fetch@google.com>2014-10-10 18:48:25 +0000
commit70b657b81646728d5204ad3ac044697b6571a603 (patch)
tree31c3defb6e216613641e807c0655eb71373f0318
parent430eea334a2ad2050ebfd3348f91d760b171a6b3 (diff)
downloadchrome-ec-70b657b81646728d5204ad3ac044697b6571a603.tar.gz
CHERRY-PICK: Don't hibernate on low battery if hiberante is not supported
If CONFIG_HIBERNATE is explicitly undefined for a board, the EC shouldn't hibernate when the battery is running low. Otherwise, the EC reboots because of the lack of hibernate support, and this actually burns more power. BUG=chrome-os-partner:32727, chrome-os-partner:32779 TEST=Drain the battery to 2% and verify the EC is behaving. BRANCH=None Change-Id: Ia614590a30bf27bf1a57870ffb430b909bd75ee8 Original-Change-Id: I2f9f5fd8fb4b5be4d8da113da4ef26c062869a07 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/222615 Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/222859 Reviewed-by: Mohammed Habibulla <moch@chromium.org> Commit-Queue: Mohammed Habibulla <moch@chromium.org> Tested-by: Mohammed Habibulla <moch@chromium.org>
-rw-r--r--common/charge_state_v2.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/common/charge_state_v2.c b/common/charge_state_v2.c
index 2c17a838bf..a5d421c45b 100644
--- a/common/charge_state_v2.c
+++ b/common/charge_state_v2.c
@@ -418,9 +418,11 @@ static void prevent_deep_discharge(void)
return;
if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) {
+#ifdef CONFIG_HIBERNATE
/* AP is off, so shut down the EC now */
CPRINTS("charge force EC hibernate due to low battery");
system_hibernate(0, 0);
+#endif
} else if (!shutdown_warning_time.val) {
/* Warn AP battery level is so low we'll shut down */
CPRINTS("charge warn shutdown due to low battery");