power: supply: bq24190_charger: Remove extcon handling

Now that drivers/i2c/busses/i2c-cht-wc.c uses
"input-current-limit-from-supplier" instead of "extcon-name" the last
user of the bq24190 extcon code is gone, remove it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

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);