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rtc: m41t80: remove warnings and replace obsolete function

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Replace the obsolete "simple_strtoul" function to "kstrtoul".
Remove some checkpatch's errors, warnings and checks :
   - alignment with open parenthesis
   - spaces around '<' and '<<'
   - blank line after structure
   - quoted string split across lines

Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Mylène Josserand 2016-03-29 08:56:02 +02:00 committed by Alexandre Belloni
parent 54339f3b31
commit fc99b90154
1 changed files with 15 additions and 11 deletions
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26
drivers/rtc/rtc-m41t80.c
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@ -226,7 +226,11 @@ static ssize_t sqwfreq_store(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct m41t80_data *clientdata = i2c_get_clientdata(client);
int almon, sqw, reg_sqw, rc;
int val = simple_strtoul(buf, NULL, 0);
unsigned long val;
rc = kstrtoul(buf, 0, &val);
if (rc < 0)
return rc;
if (!(clientdata->features & M41T80_FEATURE_SQ))
return -EINVAL;
@ -255,7 +259,7 @@ static ssize_t sqwfreq_store(struct device *dev,
sqw = (sqw & 0x0f) | (val << 4);
rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
almon & ~M41T80_ALMON_SQWE);
almon & ~M41T80_ALMON_SQWE);
if (rc < 0)
return rc;
@ -265,8 +269,8 @@ static ssize_t sqwfreq_store(struct device *dev,
return rc;
rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
almon | M41T80_ALMON_SQWE);
if (rc <0)
almon | M41T80_ALMON_SQWE);
if (rc < 0)
return rc;
}
return count;
@ -278,6 +282,7 @@ static struct attribute *attrs[] = {
&dev_attr_sqwfreq.attr,
NULL,
};
static struct attribute_group attr_group = {
.attrs = attrs,
};
@ -329,7 +334,7 @@ static void wdt_ping(void)
/*
* WDS = 1 (0x80), mulitplier = WD_TIMO, resolution = 1s (0x02)
*/
i2c_data[1] = wdt_margin<<2 | 0x82;
i2c_data[1] = wdt_margin << 2 | 0x82;
/*
* M41T65 has three bits for watchdog resolution. Don't set bit 7, as
@ -595,7 +600,7 @@ static int m41t80_probe(struct i2c_client *client,
}
clientdata = devm_kzalloc(&client->dev, sizeof(*clientdata),
GFP_KERNEL);
GFP_KERNEL);
if (!clientdata)
return -ENOMEM;
@ -603,7 +608,7 @@ static int m41t80_probe(struct i2c_client *client,
i2c_set_clientdata(client, clientdata);
rtc = devm_rtc_device_register(&client->dev, client->name,
&m41t80_rtc_ops, THIS_MODULE);
&m41t80_rtc_ops, THIS_MODULE);
if (IS_ERR(rtc))
return PTR_ERR(rtc);
@ -617,14 +622,13 @@ static int m41t80_probe(struct i2c_client *client,
m41t80_get_datetime(client, &tm);
dev_info(&client->dev, "HT bit was set!\n");
dev_info(&client->dev,
"Power Down at "
"%04i-%02i-%02i %02i:%02i:%02i\n",
"Power Down at %04i-%02i-%02i %02i:%02i:%02i\n",
tm.tm_year + 1900,
tm.tm_mon + 1, tm.tm_mday, tm.tm_hour,
tm.tm_min, tm.tm_sec);
}
rc = i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_HOUR,
rc & ~M41T80_ALHOUR_HT);
rc & ~M41T80_ALHOUR_HT);
}
if (rc < 0) {
@ -637,7 +641,7 @@ static int m41t80_probe(struct i2c_client *client,
if (rc >= 0 && rc & M41T80_SEC_ST)
rc = i2c_smbus_write_byte_data(client, M41T80_REG_SEC,
rc & ~M41T80_SEC_ST);
rc & ~M41T80_SEC_ST);
if (rc < 0) {
dev_err(&client->dev, "Can't clear ST bit\n");
return rc;