rtc-x1205: 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>hifive-unleashed-5.1
Alessandro Zummo
Linus Torvalds
parent
e5fc9cc026
commit
4edac2b442
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@ -22,20 +22,7 @@
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#include <linux/rtc.h>
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#include <linux/delay.h>
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#define DRV_VERSION "1.0.7"
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/* Addresses to scan: none. This chip is located at
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* 0x6f and uses a two bytes register addressing.
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* Two bytes need to be written to read a single register,
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* while most other chips just require one and take the second
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* one as the data to be written. To prevent corrupting
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* unknown chips, the user must explicitly set the probe parameter.
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*/
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static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
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/* Insmod parameters */
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I2C_CLIENT_INSMOD;
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#define DRV_VERSION "1.0.8"
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/* offsets into CCR area */
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@ -91,19 +78,7 @@ I2C_CLIENT_INSMOD;
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#define X1205_HR_MIL 0x80 /* Set in ccr.hour for 24 hr mode */
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/* Prototypes */
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static int x1205_attach(struct i2c_adapter *adapter);
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static int x1205_detach(struct i2c_client *client);
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static int x1205_probe(struct i2c_adapter *adapter, int address, int kind);
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static struct i2c_driver x1205_driver = {
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.driver = {
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.name = "x1205",
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},
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.id = I2C_DRIVERID_X1205,
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.attach_adapter = &x1205_attach,
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.detach_client = &x1205_detach,
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};
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static struct i2c_driver x1205_driver;
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/*
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* In the routines that deal directly with the x1205 hardware, we use
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@ -497,58 +472,49 @@ static ssize_t x1205_sysfs_show_dtrim(struct device *dev,
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}
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static DEVICE_ATTR(dtrim, S_IRUGO, x1205_sysfs_show_dtrim, NULL);
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static int x1205_attach(struct i2c_adapter *adapter)
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static int x1205_sysfs_register(struct device *dev)
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{
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return i2c_probe(adapter, &addr_data, x1205_probe);
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int err;
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err = device_create_file(dev, &dev_attr_atrim);
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if (err)
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return err;
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err = device_create_file(dev, &dev_attr_dtrim);
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if (err)
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device_remove_file(dev, &dev_attr_atrim);
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return err;
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}
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static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
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static void x1205_sysfs_unregister(struct device *dev)
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{
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device_remove_file(dev, &dev_attr_atrim);
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device_remove_file(dev, &dev_attr_dtrim);
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}
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static int x1205_probe(struct i2c_client *client)
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{
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int err = 0;
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unsigned char sr;
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struct i2c_client *client;
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struct rtc_device *rtc;
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dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
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dev_dbg(&client->dev, "%s\n", __func__);
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if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
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err = -ENODEV;
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goto exit;
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}
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
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return -ENODEV;
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if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
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err = -ENOMEM;
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goto exit;
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}
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/* I2C client */
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client->addr = address;
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client->driver = &x1205_driver;
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client->adapter = adapter;
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strlcpy(client->name, x1205_driver.driver.name, I2C_NAME_SIZE);
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/* Verify the chip is really an X1205 */
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if (kind < 0) {
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if (x1205_validate_client(client) < 0) {
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err = -ENODEV;
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goto exit_kfree;
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}
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}
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/* Inform the i2c layer */
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if ((err = i2c_attach_client(client)))
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goto exit_kfree;
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if (x1205_validate_client(client) < 0)
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return -ENODEV;
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dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
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rtc = rtc_device_register(x1205_driver.driver.name, &client->dev,
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&x1205_rtc_ops, THIS_MODULE);
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if (IS_ERR(rtc)) {
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err = PTR_ERR(rtc);
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goto exit_detach;
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}
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if (IS_ERR(rtc))
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return PTR_ERR(rtc);
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i2c_set_clientdata(client, rtc);
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@ -565,45 +531,35 @@ static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
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else
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dev_err(&client->dev, "couldn't read status\n");
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err = device_create_file(&client->dev, &dev_attr_atrim);
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if (err) goto exit_devreg;
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err = device_create_file(&client->dev, &dev_attr_dtrim);
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if (err) goto exit_atrim;
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err = x1205_sysfs_register(&client->dev);
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if (err)
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goto exit_devreg;
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return 0;
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exit_atrim:
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device_remove_file(&client->dev, &dev_attr_atrim);
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exit_devreg:
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rtc_device_unregister(rtc);
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exit_detach:
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i2c_detach_client(client);
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exit_kfree:
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kfree(client);
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exit:
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return err;
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}
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static int x1205_detach(struct i2c_client *client)
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static int x1205_remove(struct i2c_client *client)
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{
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int err;
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struct rtc_device *rtc = i2c_get_clientdata(client);
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if (rtc)
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rtc_device_unregister(rtc);
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if ((err = i2c_detach_client(client)))
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return err;
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kfree(client);
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rtc_device_unregister(rtc);
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x1205_sysfs_unregister(&client->dev);
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return 0;
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}
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static struct i2c_driver x1205_driver = {
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.driver = {
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.name = "rtc-x1205",
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},
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.probe = x1205_probe,
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.remove = x1205_remove,
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};
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static int __init x1205_init(void)
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{
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return i2c_add_driver(&x1205_driver);
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