diff options
Diffstat (limited to 'drivers/power/nvec_battery.c')
| -rw-r--r-- | drivers/power/nvec_battery.c | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/drivers/power/nvec_battery.c b/drivers/power/nvec_battery.c index 48385e66bab3..d0b2a06410d4 100644 --- a/drivers/power/nvec_battery.c +++ b/drivers/power/nvec_battery.c @@ -40,6 +40,10 @@ #define GET_CHARGER_STATUS 1 +#define NVBATTERY_POLLING_INTERVAL 30000 /* 30 Seconds */ + +static struct timer_list battery_poll_timer; + typedef enum { NvCharger_Type_Battery = 0, @@ -283,7 +287,7 @@ static int tegra_battery_get_property(struct power_supply *psy, /* TODO:Get Charger status here */ #if GET_CHARGER_STATUS if (!NvOdmBatteryGetBatteryStatus(batt_dev->hOdmBattDev, - NvOdmBatteryInst_Main, &state)) + NvOdmBatteryInst_Main, &state)) return -ENODEV; if (state == NVODM_BATTERY_STATUS_UNKNOWN) { @@ -402,6 +406,16 @@ static int tegra_battery_get_property(struct power_supply *psy, return 0; } +static void tegra_battery_poll_timer_func(unsigned long unused) +{ + power_supply_changed(&tegra_power_supplies[NvCharger_Type_Battery]); + power_supply_changed(&tegra_power_supplies[NvCharger_Type_USB]); + power_supply_changed(&tegra_power_supplies[NvCharger_Type_AC]); + + mod_timer(&battery_poll_timer, + jiffies + msecs_to_jiffies(NVBATTERY_POLLING_INTERVAL)); +} + static int tegra_battery_probe(struct platform_device *pdev) { int i; @@ -424,27 +438,59 @@ static int tegra_battery_probe(struct platform_device *pdev) printk(KERN_ERR "Failed to register power supply\n"); } + setup_timer(&battery_poll_timer, tegra_battery_poll_timer_func, 0); + mod_timer(&battery_poll_timer, + jiffies + msecs_to_jiffies(NVBATTERY_POLLING_INTERVAL)); + return 0; } static int tegra_battery_remove(struct platform_device *pdev) { + unsigned int i = 0; + if (batt_dev) { if (batt_dev->hOdmBattDev) { NvOdmBatteryDeviceClose(batt_dev->hOdmBattDev); batt_dev->hOdmBattDev = NULL; + + for (i = 0; i < ARRAY_SIZE(tegra_power_supplies); i++) { + power_supply_unregister(&tegra_power_supplies[i]); + } } kfree(batt_dev); batt_dev = NULL; } + + del_timer_sync(&battery_poll_timer); + + return 0; +} + +static int tegra_battery_suspend(struct platform_device *dev, + pm_message_t state) +{ + /* Kill the Battery Polling timer */ + del_timer_sync(&battery_poll_timer); + return 0; +} + +static int tegra_battery_resume(struct platform_device *dev) +{ + /*Create Battery Polling timer */ + setup_timer(&battery_poll_timer, tegra_battery_poll_timer_func, 0); + mod_timer(&battery_poll_timer, + jiffies + msecs_to_jiffies(NVBATTERY_POLLING_INTERVAL)); return 0; } static struct platform_driver tegra_battery_driver = { .probe = tegra_battery_probe, .remove = tegra_battery_remove, + .suspend= tegra_battery_suspend, + .resume = tegra_battery_resume, .driver = { .name = "tegra_battery", .owner = THIS_MODULE, |