diff options
| author | Ting Shen <phoenixshen@chromium.org> | 2019-09-10 17:58:16 +0000 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-10-01 12:52:59 +0000 |
| commit | 2d592c8b467b99061dad3f0b7552bc4b184f444a (patch) | |
| tree | 077c4b0d73fd187c20738e8233ca7d1cd564f211 /driver | |
| parent | 1db81be6d747c8c90ddb3f1e93dadc230506b859 (diff) | |
| download | chrome-ec-2d592c8b467b99061dad3f0b7552bc4b184f444a.tar.gz | |
battery: add precharge voltage
Add a precharge_voltage field to batt_info in case we need its value
differ from voltage_min, and set precharge_voltage = 3.4V according to
battery spec.
BUG=b:139012899
TEST=observe the charging curve (see issue link above for test result)
BRANCH=master
Change-Id: I2e4b240a12cd023ed90aaeda922e10b262508624
Signed-off-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1795491
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/charger/isl923x.c | 4 | ||||
| -rw-r--r-- | driver/charger/rt946x.c | 3 |
2 files changed, 5 insertions, 2 deletions
diff --git a/driver/charger/isl923x.c b/driver/charger/isl923x.c index 04abb042c8..7a02f62ca0 100644 --- a/driver/charger/isl923x.c +++ b/driver/charger/isl923x.c @@ -339,8 +339,10 @@ static void isl923x_init(void) #ifdef CONFIG_TRICKLE_CHARGING const struct battery_info *bi = battery_get_info(); + int precharge_voltage = bi->precharge_voltage ? + bi->precharge_voltage : bi->voltage_min; - if (raw_write16(ISL923X_REG_SYS_VOLTAGE_MIN, bi->voltage_min)) + if (raw_write16(ISL923X_REG_SYS_VOLTAGE_MIN, precharge_voltage)) goto init_fail; #endif diff --git a/driver/charger/rt946x.c b/driver/charger/rt946x.c index 2615f9ff25..244fb2f12d 100644 --- a/driver/charger/rt946x.c +++ b/driver/charger/rt946x.c @@ -457,7 +457,8 @@ static int rt946x_init_setting(void) rv = rt946x_set_ircmp_res(setting->ircmp_res); if (rv) return rv; - rv = rt946x_set_vprec(batt_info->voltage_min); + rv = rt946x_set_vprec(batt_info->precharge_voltage ? + batt_info->precharge_voltage : batt_info->voltage_min); if (rv) return rv; rv = rt946x_set_iprec(batt_info->precharge_current); |