diff options
| author | Duncan Laurie <dlaurie@google.com> | 2017-10-10 09:43:47 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2017-10-10 22:45:19 +0000 |
| commit | 763a3d869ff6c8ccbfd7ec0264e1e2180f4317ed (patch) | |
| tree | 1967a63ddbed3db8d3ce9c2872c048938c9abaf9 | |
| parent | 0c9cfeb7c043d8b5f1eee1495daf51f78e219513 (diff) | |
| download | chrome-ec-763a3d869ff6c8ccbfd7ec0264e1e2180f4317ed.tar.gz | |
charge_manager: Delay power on if battery is not present
If the battery is not physically present in the system then delay
power-on until the charger is providing at least 15W of power.
(currently defined as LIKELY_PD_USBC_POWER_MW)
This will allow a board without a battery to boot without browning
out the system.
BUG=b:66977532
BRANCH=eve
TEST=successfully boot on the first attempt without a battery
Change-Id: Ia362b55962d15aa9c72eb4b0742989e3cac0b5d4
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/709473
Reviewed-by: Scott Collyer <scollyer@chromium.org>
| -rw-r--r-- | common/charge_state_v2.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/common/charge_state_v2.c b/common/charge_state_v2.c index f7ad95bb29..fe35a26851 100644 --- a/common/charge_state_v2.c +++ b/common/charge_state_v2.c @@ -1027,6 +1027,17 @@ int charge_prevent_power_on(int power_button_pressed) (charge_manager_get_charger_current() == CHARGE_CURRENT_UNINITIALIZED)) prevent_power_on = 1; + +#ifdef CONFIG_BATTERY_HW_PRESENT_CUSTOM + /* + * If battery is NOT physically present then prevent power on until + * charge manager provides at least LIKELY_PD_USBC_POWER_MW. + */ + if (extpower_is_present() && battery_hw_present() == BP_NO && + charge_manager_get_power_limit_uw() < + (LIKELY_PD_USBC_POWER_MW * 1000)) + prevent_power_on = 1; +#endif #endif return prevent_power_on; |