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path: root/drivers/rtc/rtc-ds1672.c
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Diffstat (limited to 'drivers/rtc/rtc-ds1672.c')
-rw-r--r--drivers/rtc/rtc-ds1672.c65
1 files changed, 30 insertions, 35 deletions
diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
index 06dfb54f99b..a4888dbca2e 100644
--- a/drivers/rtc/rtc-ds1672.c
+++ b/drivers/rtc/rtc-ds1672.c
@@ -11,6 +11,7 @@
#include <linux/i2c.h>
#include <linux/rtc.h>
+#include <linux/module.h>
#define DRV_VERSION "0.4"
@@ -36,8 +37,17 @@ 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 */
+ {/* setup read ptr */
+ .addr = client->addr,
+ .len = 1,
+ .buf = &addr
+ },
+ {/* read date */
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .len = 4,
+ .buf = buf
+ },
};
/* read date registers */
@@ -98,8 +108,17 @@ 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 */
+ {/* setup read ptr */
+ .addr = client->addr,
+ .len = 1,
+ .buf = &addr
+ },
+ {/* read control */
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .len = 1,
+ .buf = status
+ },
};
/* read control register */
@@ -134,16 +153,6 @@ static const struct rtc_class_ops ds1672_rtc_ops = {
.set_mmss = ds1672_rtc_set_mmss,
};
-static int ds1672_remove(struct i2c_client *client)
-{
- struct rtc_device *rtc = i2c_get_clientdata(client);
-
- if (rtc)
- rtc_device_unregister(rtc);
-
- return 0;
-}
-
static int ds1672_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -158,7 +167,7 @@ static int ds1672_probe(struct i2c_client *client,
dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
- rtc = rtc_device_register(ds1672_driver.driver.name, &client->dev,
+ rtc = devm_rtc_device_register(&client->dev, ds1672_driver.driver.name,
&ds1672_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc))
@@ -168,8 +177,9 @@ static int ds1672_probe(struct i2c_client *client,
/* read control register */
err = ds1672_get_control(client, &control);
- if (err)
- goto exit_devreg;
+ if (err) {
+ dev_warn(&client->dev, "Unable to read the control register\n");
+ }
if (control & DS1672_REG_CONTROL_EOSC)
dev_warn(&client->dev, "Oscillator not enabled. "
@@ -178,13 +188,10 @@ static int ds1672_probe(struct i2c_client *client,
/* Register sysfs hooks */
err = device_create_file(&client->dev, &dev_attr_control);
if (err)
- goto exit_devreg;
+ dev_err(&client->dev, "Unable to create sysfs entry: %s\n",
+ dev_attr_control.attr.name);
return 0;
-
- exit_devreg:
- rtc_device_unregister(rtc);
- return err;
}
static struct i2c_device_id ds1672_id[] = {
@@ -197,24 +204,12 @@ static struct i2c_driver ds1672_driver = {
.name = "rtc-ds1672",
},
.probe = &ds1672_probe,
- .remove = &ds1672_remove,
.id_table = ds1672_id,
};
-static int __init ds1672_init(void)
-{
- return i2c_add_driver(&ds1672_driver);
-}
-
-static void __exit ds1672_exit(void)
-{
- i2c_del_driver(&ds1672_driver);
-}
+module_i2c_driver(ds1672_driver);
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("Dallas/Maxim DS1672 timekeeper driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
-
-module_init(ds1672_init);
-module_exit(ds1672_exit);