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WLC: Add vbus check before power supply read ops

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If vbus is absent, CPS4019 could not be accessed duel to loss of power.
So before power supply read operations, we should check vbus status.
If it is not exist, we should not access CPS4019.

Change-Id: I32bcdec8dd7aa9829a727ffb0205adaa04e185ba
Reviewed-on: https://gerrit.mot.com/2334726
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
weiweij 2022-07-15 14:59:02 +08:00 • committed by Wei Wei
commit c77ace836f
1 changed files with 16 additions and 2 deletions
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18
drivers/power/cps4019_wls_charger/cps4019_wls_charger.c
View file

@ -640,8 +640,6 @@ static int cps_check_power(bool *en)
power_supply_get_property(chg_psy, POWER_SUPPLY_PROP_VOLTAGE_NOW, &data);
if (data.intval > CPS4019_WORK_VOL) {
cps_wls_log(CPS_LOG_ERR,"%s chg vol %d. Do not need to set power\n",
__func__, data.intval);
*en = false;
} else {
*en = true;
@ -1255,6 +1253,7 @@ static int cps_wls_charger_notify_full(void)
{
mmi_cmd_s* mmi_cmd_p;
union power_supply_propval data;
bool low_power_flag;
if (cps_get_power_supply_prop("battery", POWER_SUPPLY_PROP_CAPACITY, &data)) {
return CPS_WLS_FAIL;
@ -1264,6 +1263,12 @@ static int cps_wls_charger_notify_full(void)
if (data.intval != 100)
return CPS_WLS_FAIL;
/*get vbus status first*/
cps_check_power(&low_power_flag);
if (low_power_flag) {
return CPS_WLS_FAIL;
}
if (!cps_wls_get_vout_state()) {
return CPS_WLS_FAIL;
}
@ -1377,7 +1382,16 @@ static int cps_wls_chrg_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
bool low_power_flag;
int ret = 0;
/*get vbus status first*/
cps_check_power(&low_power_flag);
if (low_power_flag) {
val->intval = -1;
return ret;
}
switch(psp) {
case POWER_SUPPLY_PROP_ONLINE:
case POWER_SUPPLY_PROP_PRESENT: