rtc-pcf8563: new style conversion

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index b3317fcc16c378c62525ad8d29035ec24b7b04a1..a1e2f39521f81c22ee3fe6750f504d98b4823b66 100644 (file)
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -18,17 +18,7 @@
 #include <linux/bcd.h>
 #include <linux/rtc.h>
 
-#define DRV_VERSION "0.4.2"
-
-/* Addresses to scan: none
- * This chip cannot be reliably autodetected. An empty eeprom
- * located at 0x51 will pass the validation routine due to
- * the way the registers are implemented.
- */
-static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
-
-/* Module parameters */
-I2C_CLIENT_INSMOD;
+#define DRV_VERSION "0.4.3"
 
 #define PCF8563_REG_ST1                0x00 /* status */
 #define PCF8563_REG_ST2                0x01
@@ -53,8 +43,10 @@ I2C_CLIENT_INSMOD;
 #define PCF8563_SC_LV          0x80 /* low voltage */
 #define PCF8563_MO_C           0x80 /* century */
 
+static struct i2c_driver pcf8563_driver;
+
 struct pcf8563 {
-       struct i2c_client client;
+       struct rtc_device *rtc;
        /*
         * The meaning of MO_C bit varies by the chip type.
         * From PCF8563 datasheet: this bit is toggled when the years
@@ -72,16 +64,13 @@ struct pcf8563 {
        int c_polarity; /* 0: MO_C=1 means 19xx, otherwise MO_C=1 means 20xx */
 };
 
-static int pcf8563_probe(struct i2c_adapter *adapter, int address, int kind);
-static int pcf8563_detach(struct i2c_client *client);
-
 /*
  * In the routines that deal directly with the pcf8563 hardware, we use
  * rtc_time -- month 0-11, hour 0-23, yr = calendar year-epoch.
  */
 static int pcf8563_get_datetime(struct i2c_client *client, struct rtc_time *tm)
 {
-       struct pcf8563 *pcf8563 = container_of(client, struct pcf8563, client);
+       struct pcf8563 *pcf8563 = i2c_get_clientdata(client);
        unsigned char buf[13] = { PCF8563_REG_ST1 };
 
        struct i2c_msg msgs[] = {
@@ -138,7 +127,7 @@ static int pcf8563_get_datetime(struct i2c_client *client, struct rtc_time *tm)
 
 static int pcf8563_set_datetime(struct i2c_client *client, struct rtc_time *tm)
 {
-       struct pcf8563 *pcf8563 = container_of(client, struct pcf8563, client);
+       struct pcf8563 *pcf8563 = i2c_get_clientdata(client);
        int i, err;
        unsigned char buf[9];
 
@@ -257,100 +246,67 @@ static const struct rtc_class_ops pcf8563_rtc_ops = {
        .set_time       = pcf8563_rtc_set_time,
 };
 
-static int pcf8563_attach(struct i2c_adapter *adapter)
-{
-       return i2c_probe(adapter, &addr_data, pcf8563_probe);
-}
-
-static struct i2c_driver pcf8563_driver = {
-       .driver         = {
-               .name   = "pcf8563",
-       },
-       .id             = I2C_DRIVERID_PCF8563,
-       .attach_adapter = &pcf8563_attach,
-       .detach_client  = &pcf8563_detach,
-};
-
-static int pcf8563_probe(struct i2c_adapter *adapter, int address, int kind)
+static int pcf8563_probe(struct i2c_client *client)
 {
        struct pcf8563 *pcf8563;
-       struct i2c_client *client;
-       struct rtc_device *rtc;
 
        int err = 0;
 
-       dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
+       dev_dbg(&client->dev, "%s\n", __func__);
 
-       if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
-               err = -ENODEV;
-               goto exit;
-       }
+       if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+               return -ENODEV;
 
-       if (!(pcf8563 = kzalloc(sizeof(struct pcf8563), GFP_KERNEL))) {
-               err = -ENOMEM;
-               goto exit;
-       }
-
-       client = &pcf8563->client;
-       client->addr = address;
-       client->driver = &pcf8563_driver;
-       client->adapter = adapter;
-
-       strlcpy(client->name, pcf8563_driver.driver.name, I2C_NAME_SIZE);
+       pcf8563 = kzalloc(sizeof(struct pcf8563), GFP_KERNEL);
+       if (!pcf8563)
+               return -ENOMEM;
 
        /* Verify the chip is really an PCF8563 */
-       if (kind < 0) {
-               if (pcf8563_validate_client(client) < 0) {
-                       err = -ENODEV;
-                       goto exit_kfree;
-               }
-       }
-
-       /* Inform the i2c layer */
-       if ((err = i2c_attach_client(client)))
+       if (pcf8563_validate_client(client) < 0) {
+               err = -ENODEV;
                goto exit_kfree;
+       }
 
        dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
 
-       rtc = rtc_device_register(pcf8563_driver.driver.name, &client->dev,
-                               &pcf8563_rtc_ops, THIS_MODULE);
+       pcf8563->rtc = rtc_device_register(pcf8563_driver.driver.name,
+                               &client->dev, &pcf8563_rtc_ops, THIS_MODULE);
 
-       if (IS_ERR(rtc)) {
-               err = PTR_ERR(rtc);
-               goto exit_detach;
+       if (IS_ERR(pcf8563->rtc)) {
+               err = PTR_ERR(pcf8563->rtc);
+               goto exit_kfree;
        }
 
-       i2c_set_clientdata(client, rtc);
+       i2c_set_clientdata(client, pcf8563);
 
        return 0;
 
-exit_detach:
-       i2c_detach_client(client);
-
 exit_kfree:
        kfree(pcf8563);
 
-exit:
        return err;
 }
 
-static int pcf8563_detach(struct i2c_client *client)
+static int pcf8563_remove(struct i2c_client *client)
 {
-       struct pcf8563 *pcf8563 = container_of(client, struct pcf8563, client);
-       int err;
-       struct rtc_device *rtc = i2c_get_clientdata(client);
+       struct pcf8563 *pcf8563 = i2c_get_clientdata(client);
 
-       if (rtc)
-               rtc_device_unregister(rtc);
-
-       if ((err = i2c_detach_client(client)))
-               return err;
+       if (pcf8563->rtc)
+               rtc_device_unregister(pcf8563->rtc);
 
        kfree(pcf8563);
 
        return 0;
 }
 
+static struct i2c_driver pcf8563_driver = {
+       .driver         = {
+               .name   = "rtc-pcf8563",
+       },
+       .probe          = pcf8563_probe,
+       .remove         = pcf8563_remove,
+};
+
 static int __init pcf8563_init(void)
 {
        return i2c_add_driver(&pcf8563_driver);