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power: qpnp-smbcharger-mmi: Merge FG Capacity

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If the system has multiple Fuel Gauges and if 2 are defined
with names in the DT then use them to merge a Capacity
so that the combined percentage is reported to upper
layers.

Change-Id: Ic349cd72d088eef3da7a52e847f72a42c8059d33
Signed-off-by: Kenny Kessler <kenny.kessler@motorola.com>
Reviewed-on: https://gerrit.mot.com/1231212
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Curtis Porter <porterc@motorola.com>
Reviewed-by: Konstantin Makariev <kmakariev@motorola.com>
Reviewed-by: Ling Jin <lingjin@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Kenny Kessler 2018-08-21 21:43:43 -05:00 • committed by Kenneth Kessler
commit 43ee289a41
1 changed files with 98 additions and 0 deletions
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98
drivers/power/qpnp-smbcharger-mmi/qpnp-smbcharger-mmi.c
View file

@ -92,6 +92,8 @@ struct smb_mmi_charger {
struct power_supply *bms_psy;
struct power_supply *main_psy;
struct power_supply *pc_port_psy;
struct power_supply *max_main_psy;
struct power_supply *max_flip_psy;
struct notifier_block mmi_psy_notifier;
struct delayed_work heartbeat_work;
@ -1032,12 +1034,77 @@ static void mmi_heartbeat_work(struct work_struct *work)
int hb_resch_time;
union power_supply_propval pval;
int rc, usb_suspend, usbin_uv;
int batt_cap = 0;
int main_cap = 0;
int main_cap_full = 0;
int flip_cap = 0;
int flip_cap_full = 0;
int report_cap;
pr_err("SMBMMI: Heartbeat!\n");
if (chip->factory_mode)
hb_resch_time = 1000;
else
hb_resch_time = 60000;
if (chip->max_main_psy && chip->max_flip_psy) {
rc = power_supply_get_property(chip->max_main_psy,
POWER_SUPPLY_PROP_CAPACITY,
&pval);
if (rc < 0)
pr_err("SMBMMI: Couldn't get maxim main capacity\n");
else
main_cap = pval.intval;
rc = power_supply_get_property(chip->max_main_psy,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
&pval);
if (rc < 0)
pr_err("SMBMMI: Couldn't get maxim main chrg full\n");
else
main_cap_full = pval.intval;
rc = power_supply_get_property(chip->max_flip_psy,
POWER_SUPPLY_PROP_CAPACITY,
&pval);
if (rc < 0)
pr_err("SMBMMI: Couldn't get maxim flip capacity\n");
else
flip_cap = pval.intval;
rc = power_supply_get_property(chip->max_flip_psy,
POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
&pval);
if (rc < 0)
pr_err("SMBMMI: Couldn't get maxim flip chrg full\n");
else
flip_cap_full = pval.intval;
report_cap = main_cap * main_cap_full;
report_cap += flip_cap * flip_cap_full;
report_cap /= main_cap_full + flip_cap_full;
rc = power_supply_get_property(chip->batt_psy,
POWER_SUPPLY_PROP_CAPACITY,
&pval);
if (rc < 0)
pr_err("SMBMMI: Couldn't set batt psy capacity\n");
else
batt_cap = pval.intval;
if (batt_cap != report_cap) {
pr_info("SMBMMI: Updating Reported Capacity to %d\n",
report_cap);
pval.intval = report_cap;
rc = power_supply_set_property(chip->batt_psy,
POWER_SUPPLY_PROP_CAPACITY,
&pval);
if (rc < 0)
pr_err("SMBMMI: Couldn't set batt psy cap\n");
}
}
if (chip->factory_mode) {
rc = smblib_get_usb_suspend(chip, &usb_suspend);
if (rc < 0)
@ -1214,6 +1281,7 @@ static int smb_mmi_probe(struct platform_device *pdev)
int rc = 0;
union power_supply_propval val;
struct power_supply_config psy_cfg = {};
const char *max_main_name, *max_flip_name;
chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
@ -1245,6 +1313,15 @@ static int smb_mmi_probe(struct platform_device *pdev)
chip->usb_psy = power_supply_get_by_name("usb");
chip->main_psy = power_supply_get_by_name("main");
chip->pc_port_psy = power_supply_get_by_name("pc_port");
/* parse the dc power supply configuration */
rc = of_property_read_string(pdev->dev.of_node,
"mmi,max-main-psy", &max_main_name);
rc |= of_property_read_string(pdev->dev.of_node,
"mmi,max-flip-psy", &max_flip_name);
if (!rc && max_main_name && max_flip_name) {
chip->max_main_psy = power_supply_get_by_name(max_main_name);
chip->max_flip_psy = power_supply_get_by_name(max_flip_name);
}
chip->chg_dis_votable = find_votable("CHG_DISABLE");
if (IS_ERR(chip->chg_dis_votable))
@ -1408,6 +1485,10 @@ static int smb_mmi_probe(struct platform_device *pdev)
}
cancel_delayed_work(&chip->heartbeat_work);
schedule_delayed_work(&chip->heartbeat_work,
msecs_to_jiffies(0));
pr_info("QPNP SMB MMI probed successfully!\n");
return rc;
@ -1415,6 +1496,23 @@ static int smb_mmi_probe(struct platform_device *pdev)
static void smb_mmi_shutdown(struct platform_device *pdev)
{
struct smb_mmi_charger *chip = platform_get_drvdata(pdev);
if (chip->batt_psy)
power_supply_put(chip->batt_psy);
if (chip->bms_psy)
power_supply_put(chip->bms_psy);
if (chip->usb_psy)
power_supply_put(chip->usb_psy);
if (chip->main_psy)
power_supply_put(chip->main_psy);
if (chip->pc_port_psy)
power_supply_put(chip->pc_port_psy);
if (chip->max_main_psy)
power_supply_put(chip->max_main_psy);
if (chip->max_flip_psy)
power_supply_put(chip->max_flip_psy);
return;
}