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| author | Wonjoon Lee <woojoo.lee@samsung.com> | 2014-05-02 19:24:04 +0900 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-05-07 21:43:04 +0000 |
| commit | 0a166c0467c45d5df90263d00b359b6a2cae8bc6 (patch) | |
| tree | 6bd62348dce16f943e6a4fafb73b8a5ae00e4302 /include/battery.h | |
| parent | 372317af34b2def08bd22e7be1552402dd6e456f (diff) | |
| download | chrome-ec-0a166c0467c45d5df90263d00b359b6a2cae8bc6.tar.gz | |
Adding waiting function when battery boot-up
Some battery uses clock stretching feature, and this could disturb
PMU communication before battery going stable.
AP does not know and will attempt PMU setting, and could get fail
For various battery indicates usually 1s for stable
(even if it is much less in real world 200ms~700ms)
Let's checking 'battery is ready' when first pump-up power.
BRANCH=ToT
BUG=chrome-os-partner:28289
TEST=Going battery shipmode and plug-in AC, See booting and EC log
Disconnect battery, and plug-in and see booting and EC log
Change-Id: Idd8ae2ab4ec164b11fe67413bbf647cad18bc481
Signed-off-by: Wonjoon Lee <woojoo.lee@samsung.com>
Reviewed-on: https://chromium-review.googlesource.com/197990
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Diffstat (limited to 'include/battery.h')
| -rw-r--r-- | include/battery.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/battery.h b/include/battery.h index cfc358bf4e..e395839546 100644 --- a/include/battery.h +++ b/include/battery.h @@ -302,4 +302,11 @@ int battery_get_vendor_param(uint32_t param, uint32_t *value); */ int battery_set_vendor_param(uint32_t param, uint32_t value); +/** + * Wait for battery stable. + * + * @return non-zero if error. + */ +int battery_wait_for_stable(void); + #endif /* __CROS_EC_BATTERY_H */ |