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power: supply: qti_battery_charger: Configure ICL and FCC post SSR/PDR

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When the remote subsystem restarts (SSR) or the charger firmware
restarts (PDR), resend the ICL/FCC votes from clients like USB
driver, thermal SW once the subsystem is up.

Change-Id: Ia0da3747fdb98c7873b65c948b76f6b6a286e31c
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
This commit is contained in:
Subbaraman Narayanamurthy 2020-09-15 13:19:35 -07:00 committed by Anjelique Melendez
parent aa4219280b
commit 74ec41c1c5
1 changed files with 46 additions and 11 deletions
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57
drivers/power/supply/qti_battery_charger.c
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@ -234,6 +234,8 @@ struct battery_chg_dev {
struct notifier_block reboot_notifier;
u32 thermal_fcc_ua;
u32 restrict_fcc_ua;
u32 last_fcc_ua;
u32 usb_icl_ua;
bool restrict_chg_en;
};
@ -421,14 +423,6 @@ static void battery_chg_notify_enable(struct battery_chg_dev *bcdev)
pr_err("Failed to enable notification rc=%d\n", rc);
}
static void battery_chg_subsys_up_work(struct work_struct *work)
{
struct battery_chg_dev *bcdev = container_of(work,
struct battery_chg_dev, subsys_up_work);
battery_chg_notify_enable(bcdev);
}
static void battery_chg_state_cb(void *priv, enum pmic_glink_state state)
{
struct battery_chg_dev *bcdev = priv;
@ -636,6 +630,11 @@ static void battery_chg_update_usb_type_work(struct work_struct *work)
return;
}
/* Reset usb_icl_ua whenever USB adapter type changes */
if (pst->prop[USB_ADAP_TYPE] != POWER_SUPPLY_USB_TYPE_SDP &&
pst->prop[USB_ADAP_TYPE] != POWER_SUPPLY_USB_TYPE_PD)
bcdev->usb_icl_ua = 0;
pr_debug("usb_adap_type: %u\n", pst->prop[USB_ADAP_TYPE]);
switch (pst->prop[USB_ADAP_TYPE]) {
@ -831,8 +830,10 @@ static int usb_psy_set_icl(struct battery_chg_dev *bcdev, u32 prop_id, int val)
temp = UINT_MAX;
rc = write_property_id(bcdev, pst, prop_id, temp);
if (!rc)
if (!rc) {
pr_debug("Set ICL to %u\n", temp);
bcdev->usb_icl_ua = temp;
}
return rc;
}
@ -946,10 +947,12 @@ static int __battery_psy_set_charge_current(struct battery_chg_dev *bcdev,
rc = write_property_id(bcdev, &bcdev->psy_list[PSY_TYPE_BATTERY],
BATT_CHG_CTRL_LIM, fcc_ua);
if (rc < 0)
if (rc < 0) {
pr_err("Failed to set FCC %u, rc=%d\n", fcc_ua, rc);
else
} else {
pr_debug("Set FCC to %u uA\n", fcc_ua);
bcdev->last_fcc_ua = fcc_ua;
}
return rc;
}
@ -1128,6 +1131,38 @@ static int battery_chg_init_psy(struct battery_chg_dev *bcdev)
return 0;
}
static void battery_chg_subsys_up_work(struct work_struct *work)
{
struct battery_chg_dev *bcdev = container_of(work,
struct battery_chg_dev, subsys_up_work);
int rc;
battery_chg_notify_enable(bcdev);
/*
* Give some time after enabling notification so that USB adapter type
* information can be obtained properly which is essential for setting
* USB ICL.
*/
msleep(200);
if (bcdev->last_fcc_ua) {
rc = __battery_psy_set_charge_current(bcdev,
bcdev->last_fcc_ua);
if (rc < 0)
pr_err("Failed to set FCC (%u uA), rc=%d\n",
bcdev->last_fcc_ua, rc);
}
if (bcdev->usb_icl_ua) {
rc = usb_psy_set_icl(bcdev, USB_INPUT_CURR_LIMIT,
bcdev->usb_icl_ua);
if (rc < 0)
pr_err("Failed to set ICL(%u uA), rc=%d\n",
bcdev->usb_icl_ua, rc);
}
}
static int wireless_fw_send_firmware(struct battery_chg_dev *bcdev,
const struct firmware *fw)
{