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| author | Louis Yung-Chieh Lo <yjlou@chromium.org> | 2014-05-06 10:50:22 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-05-09 08:26:13 +0000 |
| commit | 863f661c6f6235525bcffc2b4b50a270128922fa (patch) | |
| tree | 0e4458bb5e44b4d30d3d8ca3927f3083256ca33d /power | |
| parent | 73b8292d76612263b0666606357609483b435f42 (diff) | |
| download | chrome-ec-863f661c6f6235525bcffc2b4b50a270128922fa.tar.gz | |
tegra: waits for battery stable before booting AP.
This is a follow-up for CL 197990 and 197991. See issue tracker for
more details.
BUG=chrome-os-partner:28289
BRANCH=tot,nyan
TEST=Copy from https://chromium-review.googlesource.com/#/c/197990
Going battery shipmode and plug-in AC, See booting and expect EC log:
"[... battery initialized]"
Disconnect battery, and plug-in and see booting and expect EC log:
"[... battery not responding]"
Change-Id: Ic218414c21057a971b478ec60e406f1eb69dd379
Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/198412
Diffstat (limited to 'power')
| -rw-r--r-- | power/tegra.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/power/tegra.c b/power/tegra.c index cbf6f13ff0..1d7b24cb28 100644 --- a/power/tegra.c +++ b/power/tegra.c @@ -25,6 +25,7 @@ * */ +#include "battery.h" #include "charge_state.h" #include "chipset.h" /* This module implements chipset functions too */ #include "clock.h" @@ -263,6 +264,12 @@ enum power_state power_chipset_init(void) auto_power_on = 1; } + /* + * Some batteries use clock stretching feature, which requires + * more time to be stable. See http://crosbug.com/p/28289 + */ + battery_wait_for_stable(); + return init_power_state; } |