rtc-ds1672 new style driver

New style conversion and reformatting as per indent --linux-style
Signed-off-by: NAlessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-ds1672.c

@@ -9,17 +9,10 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/rtc.h>
 
-#define DRV_VERSION "0.3"
-
-/* Addresses to scan: none. This chip cannot be detected. */
-static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
-
-/* Insmod parameters */
-I2C_CLIENT_INSMOD;
+#define DRV_VERSION "0.4"
 
 /* Registers */
 
@@ -29,8 +22,7 @@ I2C_CLIENT_INSMOD;
 
 #define DS1672_REG_CONTROL_EOSC	0x80
 
-/* Prototypes */
-static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind);
+static struct i2c_driver ds1672_driver;
 
 /*
  * In the routines that deal directly with the ds1672 hardware, we use
@@ -44,8 +36,8 @@ static int ds1672_get_datetime(struct i2c_client *client, struct rtc_time *tm)
 	unsigned char buf[4];
 
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 1, &addr },		/* setup read ptr */
-		{ client->addr, I2C_M_RD, 4, buf },	/* read date */
+		{client->addr, 0, 1, &addr},	/* setup read ptr */
+		{client->addr, I2C_M_RD, 4, buf},	/* read date */
 	};
 
 	/* read date registers */
@@ -127,8 +119,8 @@ static int ds1672_get_control(struct i2c_client *client, u8 *status)
 	unsigned char addr = DS1672_REG_CONTROL;
 
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 1, &addr },		/* setup read ptr */
-		{ client->addr, I2C_M_RD, 1, status },	/* read control */
+		{client->addr, 0, 1, &addr},	/* setup read ptr */
+		{client->addr, I2C_M_RD, 1, status},	/* read control */
 	};
 
 	/* read control register */
@@ -141,7 +133,8 @@ static int ds1672_get_control(struct i2c_client *client, u8 *status)
 }
 
 /* following are the sysfs callback functions */
-static ssize_t show_control(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_control(struct device *dev, struct device_attribute *attr,
+			    char *buf)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	u8 control;
@@ -154,6 +147,7 @@ static ssize_t show_control(struct device *dev, struct device_attribute *attr, c
 	return sprintf(buf, "%s\n", (control & DS1672_REG_CONTROL_EOSC)
 		       ? "disabled" : "enabled");
 }
+
 static DEVICE_ATTR(control, S_IRUGO, show_control, NULL);
 
 static const struct rtc_class_ops ds1672_rtc_ops = {
@@ -162,75 +156,35 @@ static const struct rtc_class_ops ds1672_rtc_ops = {
 	.set_mmss = ds1672_rtc_set_mmss,
 };
 
-static int ds1672_attach(struct i2c_adapter *adapter)
-{
-	return i2c_probe(adapter, &addr_data, ds1672_probe);
-}
-
-static int ds1672_detach(struct i2c_client *client)
+static int ds1672_remove(struct i2c_client *client)
 {
-	int err;
 	struct rtc_device *rtc = i2c_get_clientdata(client);
 
 	if (rtc)
 		rtc_device_unregister(rtc);
 
-	if ((err = i2c_detach_client(client)))
-		return err;
-
-	kfree(client);
-
 	return 0;
 }
 
-static struct i2c_driver ds1672_driver = {
-	.driver		= {
-		.name	= "ds1672",
-	},
-	.id		= I2C_DRIVERID_DS1672,
-	.attach_adapter = &ds1672_attach,
-	.detach_client	= &ds1672_detach,
-};
-
-static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind)
+static int ds1672_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
 {
 	int err = 0;
 	u8 control;
-	struct i2c_client *client;
 	struct rtc_device *rtc;
 
-	dev_dbg(&adapter->dev, "%s\n", __func__);
+	dev_dbg(&client->dev, "%s\n", __func__);
 
-	if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
-		err = -ENODEV;
-		goto exit;
-	}
-
-	if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
-		err = -ENOMEM;
-		goto exit;
-	}
-
-	/* I2C client */
-	client->addr = address;
-	client->driver = &ds1672_driver;
-	client->adapter	= adapter;
-
-	strlcpy(client->name, ds1672_driver.driver.name, I2C_NAME_SIZE);
-
-	/* Inform the i2c layer */
-	if ((err = i2c_attach_client(client)))
-		goto exit_kfree;
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+		return -ENODEV;
 
 	dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
 
 	rtc = rtc_device_register(ds1672_driver.driver.name, &client->dev,
 				  &ds1672_rtc_ops, THIS_MODULE);
 
-	if (IS_ERR(rtc)) {
-		err = PTR_ERR(rtc);
-		goto exit_detach;
-	}
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
 
 	i2c_set_clientdata(client, rtc);
 
@@ -250,19 +204,19 @@ static int ds1672_probe(struct i2c_adapter *adapter, int address, int kind)
 
 	return 0;
 
-exit_devreg:
+ exit_devreg:
 	rtc_device_unregister(rtc);
-
-exit_detach:
-	i2c_detach_client(client);
-
-exit_kfree:
-	kfree(client);
-
-exit:
 	return err;
 }
 
+static struct i2c_driver ds1672_driver = {
+	.driver = {
+		   .name = "rtc-ds1672",
+		   },
+	.probe = &ds1672_probe,
+	.remove = &ds1672_remove,
+};
+
 static int __init ds1672_init(void)
 {
 	return i2c_add_driver(&ds1672_driver);