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| author | Yilun Lin <yllin@google.com> | 2019-01-15 14:05:14 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-01-16 05:26:13 -0800 |
| commit | c5d961bd3d17cfe6d6764533d532661dc617967c (patch) | |
| tree | 63762cc4c85fbda724cad513f2ad3eeaa2eb062d /board | |
| parent | e3b446951d6001b5c6cb0e3019e908205d75f31a (diff) | |
| download | chrome-ec-c5d961bd3d17cfe6d6764533d532661dc617967c.tar.gz | |
kukui: Take scarlet charger workaround CLs.
This CL squashed several scarlet charger fixes.
https://crrev.com/c/1055194 scarlet: Clamp reported battery SOC when charge terminates
https://crrev.com/c/1200416 scarlet: Limit PD max voltage in a special case
https://crrev.com/c/1311753 scarlet: Throttle PD voltage based on battery level
https://crrev.com/c/1338601 scarlet: Consider power state transition when throttling PD
https://crrev.com/c/1344799 scarlet: Limit PD voltage when battery SOC > 85%
https://crrev.com/c/1378765 scarlet: Throttle PD voltage regardless of power state
In general, it reduces the PD charging voltage to 5.5V when the
battery percent is over 85 percent.
TEST=Charge kukui with PD charger <= 85%, and see it switches to 5V
when battery > 85%.
BUG=b:78792296
BRANCH=None
Change-Id: Ibdd496085f25b715ab2efb1b284f1aa5e3246653
Signed-off-by: Yilun Lin <yllin@google.com>
Reviewed-on: https://chromium-review.googlesource.com/1411436
Commit-Ready: Yilun Lin <yllin@chromium.org>
Tested-by: Yilun Lin <yllin@chromium.org>
Reviewed-by: Philip Chen <philipchen@chromium.org>
Diffstat (limited to 'board')
| -rw-r--r-- | board/kukui/battery.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/board/kukui/battery.c b/board/kukui/battery.c index ff5764ff97..5a3e27b844 100644 --- a/board/kukui/battery.c +++ b/board/kukui/battery.c @@ -16,6 +16,7 @@ #include "extpower.h" #include "gpio.h" #include "hooks.h" +#include "usb_pd.h" #include "util.h" #define TEMP_OUT_OF_RANGE TEMP_ZONE_COUNT @@ -23,6 +24,8 @@ /* We have only one battery now. */ #define BATT_ID 0 +#define BAT_LEVEL_PD_LIMIT 85 + #define BATTERY_SIMPLO_CHARGE_MIN_TEMP 0 #define BATTERY_SIMPLO_CHARGE_MAX_TEMP 60 @@ -166,6 +169,17 @@ int charger_profile_override(struct charge_state_data *curr) break; } + /* + * When the charger says it's done charging, even if fuel gauge says + * SOC < BATTERY_LEVEL_NEAR_FULL, we'll overwrite SOC with + * BATTERY_LEVEL_NEAR_FULL. So we can ensure both Chrome OS UI + * and battery LED indicate full charge. + */ + if (rt946x_is_charge_done()) { + curr->batt.state_of_charge = MAX(BATTERY_LEVEL_NEAR_FULL, + curr->batt.state_of_charge); + } + return 0; } @@ -182,6 +196,23 @@ DECLARE_HOOK(HOOK_BATTERY_SOC_CHANGE, board_charge_termination, HOOK_PRIO_DEFAULT); +static void pd_limit_5v(uint8_t en) +{ + int wanted_pd_voltage; + + wanted_pd_voltage = en ? 5500 : PD_MAX_VOLTAGE_MV; + + if (pd_get_max_voltage() != wanted_pd_voltage) + pd_set_external_voltage_limit(0, wanted_pd_voltage); +} + +/* When battery level > BAT_LEVEL_PD_LIMIT, we limit PD voltage to 5V. */ +static void board_pd_voltage(void) +{ + pd_limit_5v(charge_get_percent() > BAT_LEVEL_PD_LIMIT); +} +DECLARE_HOOK(HOOK_BATTERY_SOC_CHANGE, board_pd_voltage, HOOK_PRIO_DEFAULT); + /* Customs options controllable by host command. */ #define PARAM_FASTCHARGE (CS_PARAM_CUSTOM_PROFILE_MIN + 0) |