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qcom_charger: smb-lib: support faking battery capacity

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On debug setups where the battery is not present, we need a way
to fake battery capacity instead of reporting some incorrect
/non-existent value. Provide means for the userspace to setup
a fake battery capacity.

Change-Id: Iff3ee1009d9c3215433cc267f016ef9cf2a9bff2
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
This commit is contained in:
Abhijeet Dharmapurikar 2016-08-23 12:55:49 -07:00
parent e97b6a0e02
commit 52bf80303d
4 changed files with 29 additions and 2 deletions
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4
drivers/power/qcom-charger/qpnp-smb2.c
View file

@ -528,6 +528,9 @@ static int smb2_batt_set_prop(struct power_supply *psy,
case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL:
rc = smblib_set_prop_system_temp_level(chg, val); rc = smblib_set_prop_system_temp_level(chg, val);
break; break;
case POWER_SUPPLY_PROP_CAPACITY:
rc = smblib_set_prop_batt_capacity(chg, val);
break;
default: default:
rc = -EINVAL; rc = -EINVAL;
} }
@ -541,6 +544,7 @@ static int smb2_batt_prop_is_writeable(struct power_supply *psy,
switch (psp) { switch (psp) {
case POWER_SUPPLY_PROP_INPUT_SUSPEND: case POWER_SUPPLY_PROP_INPUT_SUSPEND:
case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL: case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL:
case POWER_SUPPLY_PROP_CAPACITY:
return 1; return 1;
default: default:
break; break;

16
drivers/power/qcom-charger/smb-lib.c
View file

@ -749,6 +749,11 @@ int smblib_get_prop_batt_capacity(struct smb_charger *chg,
{ {
int rc = -EINVAL; int rc = -EINVAL;
if (chg->fake_capacity >= 0) {
val->intval = chg->fake_capacity;
return 0;
}
if (chg->bms_psy) if (chg->bms_psy)
rc = power_supply_get_property(chg->bms_psy, rc = power_supply_get_property(chg->bms_psy,
POWER_SUPPLY_PROP_CAPACITY, val); POWER_SUPPLY_PROP_CAPACITY, val);
@ -903,6 +908,16 @@ int smblib_set_prop_input_suspend(struct smb_charger *chg,
return rc; return rc;
} }
int smblib_set_prop_batt_capacity(struct smb_charger *chg,
const union power_supply_propval *val)
{
chg->fake_capacity = val->intval;
power_supply_changed(chg->batt_psy);
return 0;
}
int smblib_set_prop_system_temp_level(struct smb_charger *chg, int smblib_set_prop_system_temp_level(struct smb_charger *chg,
const union power_supply_propval *val) const union power_supply_propval *val)
{ {
@ -1907,6 +1922,7 @@ int smblib_init(struct smb_charger *chg)
INIT_WORK(&chg->pl_detect_work, smblib_pl_detect_work); INIT_WORK(&chg->pl_detect_work, smblib_pl_detect_work);
INIT_DELAYED_WORK(&chg->hvdcp_detect_work, smblib_hvdcp_detect_work); INIT_DELAYED_WORK(&chg->hvdcp_detect_work, smblib_hvdcp_detect_work);
INIT_DELAYED_WORK(&chg->pl_taper_work, smblib_pl_taper_work); INIT_DELAYED_WORK(&chg->pl_taper_work, smblib_pl_taper_work);
chg->fake_capacity = -EINVAL;
switch (chg->mode) { switch (chg->mode) {
case PARALLEL_MASTER: case PARALLEL_MASTER:

4
drivers/power/qcom-charger/smb-lib.h
View file

@ -138,6 +138,8 @@ struct smb_charger {
int system_temp_level; int system_temp_level;
int thermal_levels; int thermal_levels;
int *thermal_mitigation; int *thermal_mitigation;
int fake_capacity;
}; };
int smblib_read(struct smb_charger *chg, u16 addr, u8 *val); int smblib_read(struct smb_charger *chg, u16 addr, u8 *val);
@ -189,6 +191,8 @@ int smblib_get_prop_system_temp_level(struct smb_charger *chg,
int smblib_set_prop_input_suspend(struct smb_charger *chg, int smblib_set_prop_input_suspend(struct smb_charger *chg,
const union power_supply_propval *val); const union power_supply_propval *val);
int smblib_set_prop_batt_capacity(struct smb_charger *chg,
const union power_supply_propval *val);
int smblib_set_prop_system_temp_level(struct smb_charger *chg, int smblib_set_prop_system_temp_level(struct smb_charger *chg,
const union power_supply_propval *val); const union power_supply_propval *val);

7
drivers/power/qcom-charger/smb138x-charger.c
View file

@ -311,9 +311,11 @@ static int smb138x_batt_set_prop(struct power_supply *psy,
case POWER_SUPPLY_PROP_INPUT_SUSPEND: case POWER_SUPPLY_PROP_INPUT_SUSPEND:
rc = smblib_set_prop_input_suspend(chg, val); rc = smblib_set_prop_input_suspend(chg, val);
break; break;
case POWER_SUPPLY_PROP_CAPACITY:
rc = smblib_set_prop_batt_capacity(chg, val);
break;
default: default:
pr_err("batt power supply set prop %d not supported\n", pr_err("batt power supply set prop %d not supported\n", prop);
prop);
return -EINVAL; return -EINVAL;
} }
@ -325,6 +327,7 @@ static int smb138x_batt_prop_is_writeable(struct power_supply *psy,
{ {
switch (prop) { switch (prop) {
case POWER_SUPPLY_PROP_INPUT_SUSPEND: case POWER_SUPPLY_PROP_INPUT_SUSPEND:
case POWER_SUPPLY_PROP_CAPACITY:
return 1; return 1;
default: default:
break; break;