Replace of_property_read_u32() function call with device_property_read_u32(),
which is a wrapper over ACPI and devicetree enumeration methods.

Fix minor existing coding style issues reported by checkpatch.pl.

Signed-off-by: Anda-Maria Nicolae <anda-maria.nico...@intel.com>
---
 drivers/power/bq2415x_charger.c |   76 ++++++++++++++++++++++++++++-----------
 1 file changed, 56 insertions(+), 20 deletions(-)

diff --git a/drivers/power/bq2415x_charger.c b/drivers/power/bq2415x_charger.c
index 6c534dc..38c2ad3 100644
--- a/drivers/power/bq2415x_charger.c
+++ b/drivers/power/bq2415x_charger.c
@@ -35,6 +35,7 @@
 #include <linux/idr.h>
 #include <linux/i2c.h>
 #include <linux/slab.h>
+#include <linux/acpi.h>
 
 #include <linux/power/bq2415x_charger.h>
 
@@ -1530,13 +1531,15 @@ static int bq2415x_probe(struct i2c_client *client,
 {
        int ret;
        int num;
-       char *name;
+       char *name = NULL;
        struct bq2415x_device *bq;
        struct device_node *np = client->dev.of_node;
        struct bq2415x_platform_data *pdata = client->dev.platform_data;
+       const struct acpi_device_id *acpi_id = NULL;
+       struct device *dev = &client->dev;
 
-       if (!np && !pdata) {
-               dev_err(&client->dev, "platform data missing\n");
+       if (!np && !pdata && !ACPI_HANDLE(dev)) {
+               dev_err(dev, "Neither devicetree, nor platform data, nor ACPI 
support\n");
                return -ENODEV;
        }
 
@@ -1547,22 +1550,27 @@ static int bq2415x_probe(struct i2c_client *client,
        if (num < 0)
                return num;
 
-       name = kasprintf(GFP_KERNEL, "%s-%d", id->name, num);
+       if (id)
+               name = kasprintf(GFP_KERNEL, "%s-%d", id->name, num);
+       else if (ACPI_HANDLE(dev)) {
+               acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
+               name = kasprintf(GFP_KERNEL, "%s-%d", acpi_id->id, num);
+       }
        if (!name) {
-               dev_err(&client->dev, "failed to allocate device name\n");
+               dev_err(dev, "failed to allocate device name\n");
                ret = -ENOMEM;
                goto error_1;
        }
 
-       bq = devm_kzalloc(&client->dev, sizeof(*bq), GFP_KERNEL);
+       bq = devm_kzalloc(dev, sizeof(*bq), GFP_KERNEL);
        if (!bq) {
-               dev_err(&client->dev, "failed to allocate device data\n");
                ret = -ENOMEM;
                goto error_2;
        }
 
        if (np) {
-               bq->notify_psy = power_supply_get_by_phandle(np, 
"ti,usb-charger-detection");
+               bq->notify_psy =
+                   power_supply_get_by_phandle(np, "ti,usb-charger-detection");
 
                if (IS_ERR(bq->notify_psy)) {
                        dev_info(&client->dev,
@@ -1573,8 +1581,7 @@ static int bq2415x_probe(struct i2c_client *client,
                        ret = -EPROBE_DEFER;
                        goto error_2;
                }
-       }
-       else if (pdata->notify_device)
+       } else if (pdata && pdata->notify_device)
                bq->notify_psy = power_supply_get_by_name(pdata->notify_device);
        else
                bq->notify_psy = NULL;
@@ -1582,36 +1589,45 @@ static int bq2415x_probe(struct i2c_client *client,
        i2c_set_clientdata(client, bq);
 
        bq->id = num;
-       bq->dev = &client->dev;
-       bq->chip = id->driver_data;
+       bq->dev = dev;
+       if (id)
+               bq->chip = id->driver_data;
+       else if (ACPI_HANDLE(dev))
+               bq->chip = acpi_id->driver_data;
        bq->name = name;
        bq->mode = BQ2415X_MODE_OFF;
        bq->reported_mode = BQ2415X_MODE_OFF;
        bq->autotimer = 0;
        bq->automode = 0;
 
-       if (np) {
-               ret = of_property_read_u32(np, "ti,current-limit",
+       if (np || ACPI_HANDLE(bq->dev)) {
+               ret = device_property_read_u32(bq->dev,
+                               "ti,current-limit",
                                &bq->init_data.current_limit);
                if (ret)
                        goto error_3;
-               ret = of_property_read_u32(np, "ti,weak-battery-voltage",
+               ret = device_property_read_u32(bq->dev,
+                               "ti,weak-battery-voltage",
                                &bq->init_data.weak_battery_voltage);
                if (ret)
                        goto error_3;
-               ret = of_property_read_u32(np, "ti,battery-regulation-voltage",
+               ret = device_property_read_u32(bq->dev,
+                               "ti,battery-regulation-voltage",
                                &bq->init_data.battery_regulation_voltage);
                if (ret)
                        goto error_3;
-               ret = of_property_read_u32(np, "ti,charge-current",
+               ret = device_property_read_u32(bq->dev,
+                               "ti,charge-current",
                                &bq->init_data.charge_current);
                if (ret)
                        goto error_3;
-               ret = of_property_read_u32(np, "ti,termination-current",
+               ret = device_property_read_u32(bq->dev,
+                               "ti,termination-current",
                                &bq->init_data.termination_current);
                if (ret)
                        goto error_3;
-               ret = of_property_read_u32(np, "ti,resistor-sense",
+               ret = device_property_read_u32(bq->dev,
+                               "ti,resistor-sense",
                                &bq->init_data.resistor_sense);
                if (ret)
                        goto error_3;
@@ -1648,7 +1664,8 @@ static int bq2415x_probe(struct i2c_client *client,
                }
 
                /* Query for initial reported_mode and set it */
-               bq2415x_notifier_call(&bq->nb, PSY_EVENT_PROP_CHANGED, 
bq->notify_psy);
+               bq2415x_notifier_call(&bq->nb, PSY_EVENT_PROP_CHANGED,
+                                     bq->notify_psy);
                bq2415x_set_mode(bq, bq->reported_mode);
 
                bq->automode = 1;
@@ -1727,9 +1744,28 @@ static const struct i2c_device_id bq2415x_i2c_id_table[] 
= {
 };
 MODULE_DEVICE_TABLE(i2c, bq2415x_i2c_id_table);
 
+static const struct acpi_device_id bq2415x_i2c_acpi_match[] = {
+       { "BQ2415X", BQUNKNOWN },
+       { "BQ241500", BQ24150 },
+       { "BQA24150", BQ24150A },
+       { "BQ241510", BQ24151 },
+       { "BQA24151", BQ24151A },
+       { "BQ241520", BQ24152 },
+       { "BQ241530", BQ24153 },
+       { "BQA24153", BQ24153A },
+       { "BQ241550", BQ24155 },
+       { "BQ241560", BQ24156 },
+       { "BQA24156", BQ24156A },
+       { "BQS24157", BQ24157S },
+       { "BQ241580", BQ24158 },
+       {}
+};
+MODULE_DEVICE_TABLE(acpi, bq2415x_i2c_acpi_match);
+
 static struct i2c_driver bq2415x_driver = {
        .driver = {
                .name = "bq2415x-charger",
+               .acpi_match_table = ACPI_PTR(bq2415x_i2c_acpi_match),
        },
        .probe = bq2415x_probe,
        .remove = bq2415x_remove,
-- 
1.7.9.5

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