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path: root/drivers/rtc/rtc-rs5c372.c
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Diffstat (limited to 'drivers/rtc/rtc-rs5c372.c')
-rw-r--r--drivers/rtc/rtc-rs5c372.c65
1 files changed, 27 insertions, 38 deletions
diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c
index d29f5432c6e..ccf54f06396 100644
--- a/drivers/rtc/rtc-rs5c372.c
+++ b/drivers/rtc/rtc-rs5c372.c
@@ -68,6 +68,7 @@
enum rtc_type {
rtc_undef = 0,
rtc_r2025sd,
+ rtc_r2221tl,
rtc_rs5c372a,
rtc_rs5c372b,
rtc_rv5c386,
@@ -76,6 +77,7 @@ enum rtc_type {
static const struct i2c_device_id rs5c372_id[] = {
{ "r2025sd", rtc_r2025sd },
+ { "r2221tl", rtc_r2221tl },
{ "rs5c372a", rtc_rs5c372a },
{ "rs5c372b", rtc_rs5c372b },
{ "rv5c386", rtc_rv5c386 },
@@ -104,7 +106,12 @@ static int rs5c_get_regs(struct rs5c372 *rs5c)
{
struct i2c_client *client = rs5c->client;
struct i2c_msg msgs[] = {
- { client->addr, I2C_M_RD, sizeof rs5c->buf, rs5c->buf },
+ {
+ .addr = client->addr,
+ .flags = I2C_M_RD,
+ .len = sizeof(rs5c->buf),
+ .buf = rs5c->buf
+ },
};
/* This implements the third reading method from the datasheet, using
@@ -306,8 +313,7 @@ static int rs5c_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
buf &= ~RS5C_CTRL1_AALE;
if (i2c_smbus_write_byte_data(client, addr, buf) < 0) {
- printk(KERN_WARNING "%s: can't update alarm\n",
- rs5c->rtc->name);
+ dev_warn(dev, "can't update alarm\n");
status = -EIO;
} else
rs5c->regs[RS5C_REG_CTRL1] = buf;
@@ -376,7 +382,7 @@ static int rs5c_set_alarm(struct device *dev, struct rtc_wkalrm *t)
addr = RS5C_ADDR(RS5C_REG_CTRL1);
buf[0] = rs5c->regs[RS5C_REG_CTRL1] & ~RS5C_CTRL1_AALE;
if (i2c_smbus_write_byte_data(client, addr, buf[0]) < 0) {
- pr_debug("%s: can't disable alarm\n", rs5c->rtc->name);
+ dev_dbg(dev, "can't disable alarm\n");
return -EIO;
}
rs5c->regs[RS5C_REG_CTRL1] = buf[0];
@@ -390,7 +396,7 @@ static int rs5c_set_alarm(struct device *dev, struct rtc_wkalrm *t)
for (i = 0; i < sizeof(buf); i++) {
addr = RS5C_ADDR(RS5C_REG_ALARM_A_MIN + i);
if (i2c_smbus_write_byte_data(client, addr, buf[i]) < 0) {
- pr_debug("%s: can't set alarm time\n", rs5c->rtc->name);
+ dev_dbg(dev, "can't set alarm time\n");
return -EIO;
}
}
@@ -400,8 +406,7 @@ static int rs5c_set_alarm(struct device *dev, struct rtc_wkalrm *t)
addr = RS5C_ADDR(RS5C_REG_CTRL1);
buf[0] = rs5c->regs[RS5C_REG_CTRL1] | RS5C_CTRL1_AALE;
if (i2c_smbus_write_byte_data(client, addr, buf[0]) < 0)
- printk(KERN_WARNING "%s: can't enable alarm\n",
- rs5c->rtc->name);
+ dev_warn(dev, "can't enable alarm\n");
rs5c->regs[RS5C_REG_CTRL1] = buf[0];
}
@@ -526,6 +531,7 @@ static int rs5c_oscillator_setup(struct rs5c372 *rs5c372)
rs5c372->time24 = 1;
break;
case rtc_r2025sd:
+ case rtc_r2221tl:
case rtc_rv5c386:
case rtc_rv5c387a:
buf[0] |= RV5C387_CTRL1_24;
@@ -576,7 +582,9 @@ static int rs5c372_probe(struct i2c_client *client,
}
}
- if (!(rs5c372 = kzalloc(sizeof(struct rs5c372), GFP_KERNEL))) {
+ rs5c372 = devm_kzalloc(&client->dev, sizeof(struct rs5c372),
+ GFP_KERNEL);
+ if (!rs5c372) {
err = -ENOMEM;
goto exit;
}
@@ -591,7 +599,7 @@ static int rs5c372_probe(struct i2c_client *client,
err = rs5c_get_regs(rs5c372);
if (err < 0)
- goto exit_kfree;
+ goto exit;
/* clock may be set for am/pm or 24 hr time */
switch (rs5c372->type) {
@@ -604,6 +612,7 @@ static int rs5c372_probe(struct i2c_client *client,
rs5c372->time24 = 1;
break;
case rtc_r2025sd:
+ case rtc_r2221tl:
case rtc_rv5c386:
case rtc_rv5c387a:
if (rs5c372->regs[RS5C_REG_CTRL1] & RV5C387_CTRL1_24)
@@ -614,7 +623,7 @@ static int rs5c372_probe(struct i2c_client *client,
break;
default:
dev_err(&client->dev, "unknown RTC type\n");
- goto exit_kfree;
+ goto exit;
}
/* if the oscillator lost power and no other software (like
@@ -626,7 +635,7 @@ static int rs5c372_probe(struct i2c_client *client,
err = rs5c_oscillator_setup(rs5c372);
if (unlikely(err < 0)) {
dev_err(&client->dev, "setup error\n");
- goto exit_kfree;
+ goto exit;
}
if (rs5c372_get_datetime(client, &tm) < 0)
@@ -635,6 +644,7 @@ static int rs5c372_probe(struct i2c_client *client,
dev_info(&client->dev, "%s found, %s, driver version " DRV_VERSION "\n",
({ char *s; switch (rs5c372->type) {
case rtc_r2025sd: s = "r2025sd"; break;
+ case rtc_r2221tl: s = "r2221tl"; break;
case rtc_rs5c372a: s = "rs5c372a"; break;
case rtc_rs5c372b: s = "rs5c372b"; break;
case rtc_rv5c386: s = "rv5c386"; break;
@@ -645,38 +655,28 @@ static int rs5c372_probe(struct i2c_client *client,
);
/* REVISIT use client->irq to register alarm irq ... */
-
- rs5c372->rtc = rtc_device_register(rs5c372_driver.driver.name,
- &client->dev, &rs5c372_rtc_ops, THIS_MODULE);
+ rs5c372->rtc = devm_rtc_device_register(&client->dev,
+ rs5c372_driver.driver.name,
+ &rs5c372_rtc_ops, THIS_MODULE);
if (IS_ERR(rs5c372->rtc)) {
err = PTR_ERR(rs5c372->rtc);
- goto exit_kfree;
+ goto exit;
}
err = rs5c_sysfs_register(&client->dev);
if (err)
- goto exit_devreg;
+ goto exit;
return 0;
-exit_devreg:
- rtc_device_unregister(rs5c372->rtc);
-
-exit_kfree:
- kfree(rs5c372);
-
exit:
return err;
}
static int rs5c372_remove(struct i2c_client *client)
{
- struct rs5c372 *rs5c372 = i2c_get_clientdata(client);
-
- rtc_device_unregister(rs5c372->rtc);
rs5c_sysfs_unregister(&client->dev);
- kfree(rs5c372);
return 0;
}
@@ -689,18 +689,7 @@ static struct i2c_driver rs5c372_driver = {
.id_table = rs5c372_id,
};
-static __init int rs5c372_init(void)
-{
- return i2c_add_driver(&rs5c372_driver);
-}
-
-static __exit void rs5c372_exit(void)
-{
- i2c_del_driver(&rs5c372_driver);
-}
-
-module_init(rs5c372_init);
-module_exit(rs5c372_exit);
+module_i2c_driver(rs5c372_driver);
MODULE_AUTHOR(
"Pavel Mironchik <pmironchik@optifacio.net>, "
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 17:35:54 +0000