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Add factory kill time debounce support

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Add factory kill time debounce support to debounce the factory
kill event for charger/usb online shake during boot in
factory mode.

Change-Id: I1ca70dbfebd1fa8555ca36dda2b7b6ab2dbc8a2d
Signed-off-by: yanyh2 <yanyh2@motorola.com>
Reviewed-on: https://gerrit.mot.com/2242975
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Zhenxin Xi <xizx@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
yanyh2 2022-04-14 22:25:30 +08:00 • committed by Yonghua Yan
commit dec0712199
1 changed files with 23 additions and 4 deletions
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27
drivers/power/mmi_charger/mmi_charger.c
View file

@ -27,6 +27,7 @@
#include <linux/delay.h>
#include <linux/mmi_wake_lock.h>
#include <soc/qcom/mmi_boot_info.h>
#include <linux/time64.h>
#include "mmi_charger.h"
@ -240,6 +241,7 @@ struct mmi_charger_chip {
struct mmi_vote suspend_charger_vote;
struct mmi_vote disable_charging_vote;
uint32_t factory_kill_debounce_ms;
};
static int mmi_vote(struct mmi_vote *vote, const char *voter,
@ -1958,7 +1960,7 @@ static void mmi_update_battery_status(struct mmi_charger_chip *chip)
mmi_changed = true;
chip->max_charger_rate = max_charger_rate;
mmi_notify_charger_event(chip, NOTIFY_EVENT_TYPE_CHG_RATE);
mmi_info(chip, "%s charger is detected\n",
mmi_err(chip, "%s charger is detected\n",
charge_rate[chip->max_charger_rate]);
}
@ -2024,6 +2026,9 @@ static void mmi_charger_heartbeat_work(struct work_struct *work)
struct mmi_charger_chip *chip = container_of(work,
struct mmi_charger_chip,
heartbeat_work.work);
struct timespec64 now;
static struct timespec64 start;
uint32_t elapsed_ms;
/* Have not been resumed so wait another 100 ms */
if (chip->suspended & IS_SUSPENDED) {
@ -2066,13 +2071,22 @@ static void mmi_charger_heartbeat_work(struct work_struct *work)
if (chip->max_charger_rate > MMI_POWER_SUPPLY_CHARGE_RATE_NONE) {
mmi_dbg(chip, "Factory Kill Armed\n");
chip->factory_kill_armed = true;
ktime_get_real_ts64(&start);
} else if (chip->factory_kill_armed && !factory_kill_disable) {
mmi_warn(chip, "Factory kill power off\n");
ktime_get_real_ts64(&now);
elapsed_ms = (now.tv_sec - start.tv_sec) * 1000;
elapsed_ms += (now.tv_nsec - start.tv_nsec) / 1000000;
if (elapsed_ms < chip->factory_kill_debounce_ms) {
mmi_err(chip, "Factory kill debounce elapsed_ms:%d\n",
elapsed_ms);
} else {
mmi_err(chip, "Factory kill power off\n");
#if (KERNEL_VERSION(5, 10, 0) > LINUX_VERSION_CODE) || defined(MMI_GKI_API_ALLOWANCE)
orderly_poweroff(true);
orderly_poweroff(true);
#else
kernel_power_off();
kernel_power_off();
#endif
}
} else {
chip->factory_kill_armed = false;
}
@ -2575,6 +2589,11 @@ static int mmi_parse_dt(struct mmi_charger_chip *chip)
chip->start_factory_kill_disabled =
of_property_read_bool(node, "mmi,start-factory-kill-disabled");
rc = of_property_read_u32(node, "mmi,factory-kill-debounce-ms",
&chip->factory_kill_debounce_ms);
if (rc)
chip->factory_kill_debounce_ms = 0;
rc = of_property_read_u32(node, "mmi,upper-limit-capacity",
&chip->upper_limit_capacity);
if (rc)