diff options
| author | Logan_Liao <Logan_Liao@compal.corp-partner.google.com> | 2023-03-13 09:23:49 +0800 |
|---|---|---|
| committer | Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2023-03-15 01:51:38 +0000 |
| commit | b2c893485fc5017a4a440c4832e4a7fc17359af0 (patch) | |
| tree | 94f3dba4e00f47a2faf9ce43822d0a4b3b594acf /driver | |
| parent | c49b07e12b1a69c7757b68b4000478418a3b321e (diff) | |
| download | chrome-ec-b2c893485fc5017a4a440c4832e4a7fc17359af0.tar.gz | |
frostflow: Modify charger frequence for power consumption.
To avoid charger enter CCM mode, modify isl9241 frequence to 600kHz
from 1020kHz in S5.
BUG=b:271704154
BRANCH=none
TEST=power team test power consumption is lower than 1020kHz.
Change-Id: I9906f2795582c2c8e4a63a674404c0e5a5dfbc96
Signed-off-by: Logan_Liao <Logan_Liao@compal.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/4333276
Reviewed-by: SamSP Liu <samsp_liu2@compal.corp-partner.google.com>
Tested-by: Logan Liao <logan_liao@compal.corp-partner.google.com>
Reviewed-by: Chao Gui <chaogui@google.com>
Commit-Queue: Logan Liao <logan_liao@compal.corp-partner.google.com>
Reviewed-by: Logan Liao <logan_liao@compal.corp-partner.google.com>
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/charger/isl9241.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/driver/charger/isl9241.c b/driver/charger/isl9241.c index b419f1ccca..f1273fe43d 100644 --- a/driver/charger/isl9241.c +++ b/driver/charger/isl9241.c @@ -147,6 +147,53 @@ static enum ec_error_list isl9241_device_id(int chgnum, int *id) return isl9241_read(chgnum, ISL9241_REG_DEVICE_ID, id); } +static enum ec_error_list isl9241_set_frequency(int chgnum, int freq_khz) +{ + int rv; + int reg; + int freq; + + mutex_lock(&control1_mutex_isl9241); + rv = isl9241_read(chgnum, ISL9241_REG_CONTROL1, ®); + if (rv) { + CPRINTS("Could not read CONTROL1. (rv=%d)", rv); + return rv; + } + /* 000 = 1420kHz */ + /* 001 = 1180kHz */ + /* 010 = 1020kHz */ + /* 011 = 890kHz */ + /* 100 = 808kHz */ + /* 101 = 724kHz */ + /* 110 = 656kHz */ + /* 111 = 600kHz */ + if (freq_khz >= 1300) + freq = ISL9241_CONTROL1_SWITCHING_FREQ_1420KHZ; + else if (freq_khz >= 1100) + freq = ISL9241_CONTROL1_SWITCHING_FREQ_1180KHZ; + else if (freq_khz >= 955) + freq = ISL9241_CONTROL1_SWITCHING_FREQ_1020KHZ; + else if (freq_khz >= 849) + freq = ISL9241_CONTROL1_SWITCHING_FREQ_890KHZ; + else if (freq_khz >= 766) + freq = ISL9241_CONTROL1_SWITCHING_FREQ_808KHZ; + else if (freq_khz >= 690) + freq = ISL9241_CONTROL1_SWITCHING_FREQ_724KHZ; + else if (freq_khz >= 678) + freq = ISL9241_CONTROL1_SWITCHING_FREQ_656KHZ; + else + freq = ISL9241_CONTROL1_SWITCHING_FREQ_600KHZ; + + reg &= ~ISL9241_CONTROL1_SWITCHING_FREQ_MASK; + reg |= (freq << 7); + rv = isl9241_write(chgnum, ISL9241_REG_CONTROL1, reg); + if (rv) + return rv; + + mutex_unlock(&control1_mutex_isl9241); + return EC_SUCCESS; +} + static enum ec_error_list isl9241_get_option(int chgnum, int *option) { int rv; @@ -1232,6 +1279,7 @@ const struct charger_drv isl9241_drv = { .get_input_current_limit = &isl9241_get_input_current_limit, .manufacturer_id = &isl9241_manufacturer_id, .device_id = &isl9241_device_id, + .set_frequency = &isl9241_set_frequency, .get_option = &isl9241_get_option, .set_option = &isl9241_set_option, #ifdef CONFIG_CHARGE_RAMP_HW |