diff options
Diffstat (limited to 'driver/charger/bq25710.c')
| -rw-r--r-- | driver/charger/bq25710.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/driver/charger/bq25710.c b/driver/charger/bq25710.c index 9e78432628..b56fa89bba 100644 --- a/driver/charger/bq25710.c +++ b/driver/charger/bq25710.c @@ -38,6 +38,10 @@ UINT16_MAX) #endif +#ifndef CONFIG_CHARGER_BQ25710_VSYS_MIN_VOLTAGE_CUSTOM +#define CONFIG_CHARGER_BQ25710_VSYS_MIN_VOLTAGE_MV 0 +#endif + #ifndef CONFIG_BQ25720_VSYS_UVP_CUSTOM #define CONFIG_BQ25720_VSYS_UVP 0 #endif @@ -478,20 +482,31 @@ static void bq25710_init(int chgnum) int rv; /* - * Reset registers to their default settings. There is no reset pin for - * this chip so without a full power cycle, some registers may not be at - * their default values. Note, need to save the POR value of - * MIN_SYSTEM_VOLTAGE register prior to setting the reset so that the - * correct value is preserved. In order to have the correct value read, - * the bq25710 must not be in low power mode, otherwise the VDDA rail - * may not be powered if AC is not connected. Note, this reset is only - * required when running out of RO and not following sysjump to RW. + * Reset registers to their default settings. There is no reset + * pin for this chip so without a full power cycle, some + * registers may not be at their default values. Note, need to + * save the POR value of MIN_SYSTEM_VOLTAGE/VSYS_MIN register + * prior to setting the reset so that the correct value is + * preserved. In order to have the correct value read, the + * bq25710 must not be in low power mode, otherwise the VDDA + * rail may not be powered if AC is not connected. Note, this + * reset is only required when running out of RO and not + * following sysjump to RW. */ if (!system_jumped_late()) { rv = bq25710_set_low_power_mode(chgnum, 0); /* Allow enough time for VDDA to be powered */ msleep(BQ25710_VDDA_STARTUP_DELAY_MSEC); - rv |= raw_read16(chgnum, BQ25710_REG_MIN_SYSTEM_VOLTAGE, &vsys); + + if (IS_ENABLED( + CONFIG_CHARGER_BQ25710_VSYS_MIN_VOLTAGE_CUSTOM)) { + vsys = min_system_voltage_to_reg( + CONFIG_CHARGER_BQ25710_VSYS_MIN_VOLTAGE_MV); + } else { + rv |= raw_read16(chgnum, + BQ25710_REG_MIN_SYSTEM_VOLTAGE, &vsys); + } + rv |= raw_read16(chgnum, BQ25710_REG_CHARGE_OPTION_3, ®); if (!rv) { reg = SET_BQ_FIELD(BQ257X0, CHARGE_OPTION_3, RESET_REG, |