A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-14 00:24:41 -04:00
Code Issues Projects Releases Packages Wiki Activity

power: qpnp-qg: Battery-temp based ESR enable

Browse source 
Add a logic to ignore ESR based on battery temperature.
This is useful for very-low temperature based charging where
ESR could be way off. The default threshold is set to 10degC
and configurable via  "qcom,esr-low-temp-threshold".

Change-Id: Ic5b918434c63f71c412f782564e7a7aa818da6f1
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
This commit is contained in:
Anirudh Ghayal 2020-07-23 10:00:20 +05:30 • committed by Gerrit - the friendly Code Review server
commit 8a8da4d34d
2 changed files with 21 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

1
drivers/power/supply/qcom/qg-core.h
View file

@ -64,6 +64,7 @@ struct qg_dt {
int sys_min_volt_mv;
int fvss_vbat_mv;
int tcss_entry_soc;
int esr_low_temp_threshold;
bool hold_soc_while_full;
bool linearize_soc;
bool cl_disable;

21
drivers/power/supply/qcom/qpnp-qg.c
View file

@ -1036,7 +1036,7 @@ static int qg_process_esr_data(struct qpnp_qg *chip)
static int qg_esr_estimate(struct qpnp_qg *chip)
{
int rc, i, ibat = 0;
int rc, i, ibat = 0, temp = 0;
u8 esr_done_count, reg0 = 0, reg1 = 0;
bool is_charging = false;
@ -1062,6 +1062,17 @@ static int qg_esr_estimate(struct qpnp_qg *chip)
!chip->dt.esr_discharge_enable)
return 0;
/* Ignore ESR if battery-temp is below a threshold */
rc = qg_get_battery_temp(chip, &temp);
if (rc < 0)
return rc;
if (temp < chip->dt.esr_low_temp_threshold) {
qg_dbg(chip, QG_DEBUG_ESR,
"Battery temperature(%d) below threshold(%d) for ESR\n",
temp, chip->dt.esr_low_temp_threshold);
return 0;
}
if (chip->batt_soc != INT_MIN && (chip->batt_soc <
chip->dt.esr_disable_soc)) {
qg_dbg(chip, QG_DEBUG_ESR,
@ -4171,6 +4182,7 @@ static int qg_parse_cl_dt(struct qpnp_qg *chip)
#define DEFAULT_SYS_MIN_VOLT_MV 2800
#define DEFAULT_FVSS_VBAT_MV 3500
#define DEFAULT_TCSS_ENTRY_SOC 90
#define DEFAULT_ESR_LOW_TEMP_THRESHOLD 100 /* 10 deg */
static int qg_parse_dt(struct qpnp_qg *chip)
{
int rc = 0;
@ -4358,6 +4370,13 @@ static int qg_parse_dt(struct qpnp_qg *chip)
else
chip->dt.esr_min_ibat_ua = (int)temp;
rc = of_property_read_u32(node, "qcom,esr-low-temp-threshold", &temp);
if (rc < 0)
chip->dt.esr_low_temp_threshold =
DEFAULT_ESR_LOW_TEMP_THRESHOLD;
else
chip->dt.esr_low_temp_threshold = (int)temp;
rc = of_property_read_u32(node, "qcom,shutdown_soc_threshold", &temp);
if (rc < 0)
chip->dt.shutdown_soc_threshold = -EINVAL;