diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/bq24190_charger.c | 117 |
1 files changed, 10 insertions, 107 deletions
diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c index 35ff406aca48..c4335ff70232 100644 --- a/drivers/power/supply/bq24190_charger.c +++ b/drivers/power/supply/bq24190_charger.c @@ -11,7 +11,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/delay.h> -#include <linux/extcon.h> #include <linux/of_irq.h> #include <linux/of_device.h> #include <linux/pm_runtime.h> @@ -162,9 +161,6 @@ struct bq24190_dev_info { struct device *dev; struct power_supply *charger; struct power_supply *battery; - struct extcon_dev *extcon; - struct notifier_block extcon_nb; - struct delayed_work extcon_work; struct delayed_work input_current_limit_work; char model_name[I2C_NAME_SIZE]; bool initialized; @@ -686,6 +682,16 @@ static int bq24190_register_reset(struct bq24190_dev_info *bdi) int ret, limit = 100; u8 v; + /* + * This prop. can be passed on device instantiation from platform code: + * struct property_entry pe[] = + * { PROPERTY_ENTRY_BOOL("disable-reset"), ... }; + * struct i2c_board_info bi = + * { .type = "bq24190", .addr = 0x6b, .properties = pe, .irq = irq }; + * struct i2c_adapter ad = { ... }; + * i2c_add_adapter(&ad); + * i2c_new_device(&ad, &bi); + */ if (device_property_read_bool(bdi->dev, "disable-reset")) return 0; @@ -1623,75 +1629,6 @@ static irqreturn_t bq24190_irq_handler_thread(int irq, void *data) return IRQ_HANDLED; } -static void bq24190_extcon_work(struct work_struct *work) -{ - struct bq24190_dev_info *bdi = - container_of(work, struct bq24190_dev_info, extcon_work.work); - int error, iinlim = 0; - u8 v; - - error = pm_runtime_get_sync(bdi->dev); - if (error < 0) { - dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", error); - pm_runtime_put_noidle(bdi->dev); - return; - } - - if (extcon_get_state(bdi->extcon, EXTCON_CHG_USB_SDP) == 1) - iinlim = 500000; - else if (extcon_get_state(bdi->extcon, EXTCON_CHG_USB_CDP) == 1 || - extcon_get_state(bdi->extcon, EXTCON_CHG_USB_ACA) == 1) - iinlim = 1500000; - else if (extcon_get_state(bdi->extcon, EXTCON_CHG_USB_DCP) == 1) - iinlim = 2000000; - - if (iinlim) { - error = bq24190_set_field_val(bdi, BQ24190_REG_ISC, - BQ24190_REG_ISC_IINLIM_MASK, - BQ24190_REG_ISC_IINLIM_SHIFT, - bq24190_isc_iinlim_values, - ARRAY_SIZE(bq24190_isc_iinlim_values), - iinlim); - if (error < 0) - dev_err(bdi->dev, "Can't set IINLIM: %d\n", error); - } - - /* if no charger found and in USB host mode, set OTG 5V boost, else normal */ - if (!iinlim && extcon_get_state(bdi->extcon, EXTCON_USB_HOST) == 1) - v = BQ24190_REG_POC_CHG_CONFIG_OTG; - else - v = BQ24190_REG_POC_CHG_CONFIG_CHARGE; - - error = bq24190_write_mask(bdi, BQ24190_REG_POC, - BQ24190_REG_POC_CHG_CONFIG_MASK, - BQ24190_REG_POC_CHG_CONFIG_SHIFT, - v); - if (error < 0) - dev_err(bdi->dev, "Can't set CHG_CONFIG: %d\n", error); - - pm_runtime_mark_last_busy(bdi->dev); - pm_runtime_put_autosuspend(bdi->dev); -} - -static int bq24190_extcon_event(struct notifier_block *nb, unsigned long event, - void *param) -{ - struct bq24190_dev_info *bdi = - container_of(nb, struct bq24190_dev_info, extcon_nb); - - /* - * The Power-Good detection may take up to 220ms, sometimes - * the external charger detection is quicker, and the bq24190 will - * reset to iinlim based on its own charger detection (which is not - * hooked up when using external charger detection) resulting in - * a too low default 500mA iinlim. Delay applying the extcon value - * for 300ms to avoid this. - */ - queue_delayed_work(system_wq, &bdi->extcon_work, msecs_to_jiffies(300)); - - return NOTIFY_OK; -} - static int bq24190_hw_init(struct bq24190_dev_info *bdi) { u8 v; @@ -1766,7 +1703,6 @@ static int bq24190_probe(struct i2c_client *client, struct device *dev = &client->dev; struct power_supply_config charger_cfg = {}, battery_cfg = {}; struct bq24190_dev_info *bdi; - const char *name; int ret; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { @@ -1796,25 +1732,6 @@ static int bq24190_probe(struct i2c_client *client, return -EINVAL; } - /* - * Devicetree platforms should get extcon via phandle (not yet supported). - * On ACPI platforms, extcon clients may invoke us with: - * struct property_entry pe[] = - * { PROPERTY_ENTRY_STRING("extcon-name", client_name), ... }; - * struct i2c_board_info bi = - * { .type = "bq24190", .addr = 0x6b, .properties = pe, .irq = irq }; - * struct i2c_adapter ad = { ... }; - * i2c_add_adapter(&ad); - * i2c_new_device(&ad, &bi); - */ - if (device_property_read_string(dev, "extcon-name", &name) == 0) { - bdi->extcon = extcon_get_extcon_dev(name); - if (!bdi->extcon) - return -EPROBE_DEFER; - - dev_info(bdi->dev, "using extcon device %s\n", name); - } - pm_runtime_enable(dev); pm_runtime_use_autosuspend(dev); pm_runtime_set_autosuspend_delay(dev, 600); @@ -1882,20 +1799,6 @@ static int bq24190_probe(struct i2c_client *client, if (ret < 0) goto out_sysfs; - if (bdi->extcon) { - INIT_DELAYED_WORK(&bdi->extcon_work, bq24190_extcon_work); - bdi->extcon_nb.notifier_call = bq24190_extcon_event; - ret = devm_extcon_register_notifier_all(dev, bdi->extcon, - &bdi->extcon_nb); - if (ret) { - dev_err(dev, "Can't register extcon\n"); - goto out_sysfs; - } - - /* Sync initial cable state */ - queue_delayed_work(system_wq, &bdi->extcon_work, 0); - } - enable_irq_wake(client->irq); pm_runtime_mark_last_busy(dev); |