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power: qpnp-smbcharger-mmi: Add Suspend SOC Recalc

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When the System Suspends the running last reported SOC needs to
be reset.  The reason is that the SOC could have moved a large
amount while sleeping.  The curretn SOC needs to be recalculated
so that the changes is noticable to the User upon wakeup.

To do this keep track of the Suspend state as well as the fact
that the heartbeat has not run yet after a Suspend.  The
WAS_SUSPEND bit will track this and then be cleared once the
heartbeat gets past the point that the information is not longer
needed.  For Dual Batteries, this will force the last_reported_soc
to be updated with the current calculation rather then trying
to Monotonically adjust it slowly.

Change-Id: I0de830df74720f0f26f8f7a7cfcba7698f6a6dd6
Signed-off-by: Kenny Kessler <kenny.kessler@motorola.com>
Reviewed-on: https://gerrit.mot.com/1355819
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Curtis Porter <porterc@motorola.com>
Reviewed-by: Kenneth Kessler <kennykessler@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Kenny Kessler 2019-05-16 08:31:18 -05:00 • committed by Kenneth Kessler
commit aed5336114
1 changed files with 15 additions and 6 deletions
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21
drivers/power/qpnp-smbcharger-mmi/qpnp-smbcharger-mmi.c
View file

@ -223,6 +223,9 @@ enum charging_limit_modes {
CHARGING_LIMIT_UNKNOWN,
};
#define IS_SUSPENDED BIT(0)
#define WAS_SUSPENDED BIT(1)
struct smb_mmi_charger {
struct device *dev;
struct regmap *regmap;
@ -271,7 +274,7 @@ struct smb_mmi_charger {
int vfloat_comp_mv;
struct wakeup_source smb_mmi_hb_wake_source;
struct alarm heartbeat_alarm;
bool suspended;
int suspended;
bool awake;
int last_reported_soc;
int last_reported_status;
@ -2430,7 +2433,7 @@ static void mmi_heartbeat_work(struct work_struct *work)
struct smb_mmi_chg_status chg_stat;
/* Have not been resumed so wait another 100 ms */
if (chip->suspended) {
if (chip->suspended & IS_SUSPENDED) {
pr_err("SMBMMI: HB running before Resume\n");
schedule_delayed_work(&chip->heartbeat_work,
msecs_to_jiffies(100));
@ -2582,7 +2585,10 @@ static void mmi_heartbeat_work(struct work_struct *work)
else if (report_cap > 100)
report_cap = 100;
batt_cap = chip->last_reported_soc;
if (chip->suspended & WAS_SUSPENDED)
batt_cap = -1;
else
batt_cap = chip->last_reported_soc;
if ((batt_cap == -1) ||
((report_cap != batt_cap) &&
@ -2718,6 +2724,7 @@ static void mmi_heartbeat_work(struct work_struct *work)
}
}
prev_vbus_mv = chg_stat.usb_mv;
chip->suspended = 0;
if (chip->factory_mode ||
(chip->is_factory_image && chip->enable_factory_poweroff)) {
@ -3331,7 +3338,7 @@ static int smb_mmi_probe(struct platform_device *pdev)
chip->dev = &pdev->dev;
psy_cfg.drv_data = chip;
platform_set_drvdata(pdev, chip);
chip->suspended = false;
chip->suspended = 0;
chip->awake = false;
device_init_wakeup(chip->dev, true);
@ -3664,7 +3671,8 @@ static int smb_mmi_suspend(struct device *device)
struct platform_device *pdev = to_platform_device(device);
struct smb_mmi_charger *chip = platform_get_drvdata(pdev);
chip->suspended = true;
chip->suspended &= ~WAS_SUSPENDED;
chip->suspended |= IS_SUSPENDED;
return 0;
}
@ -3674,7 +3682,8 @@ static int smb_mmi_resume(struct device *device)
struct platform_device *pdev = to_platform_device(device);
struct smb_mmi_charger *chip = platform_get_drvdata(pdev);
chip->suspended = false;
chip->suspended &= ~IS_SUSPENDED;
chip->suspended |= WAS_SUSPENDED;
return 0;
}