mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 08:19:28 +00:00
rtc: ds1672: remove sysfs debug interface
Remove the control sysfs file as it is not documented, read only and was only used to provide the oscillator state. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
parent
10e3efc165
commit
c346065582
1 changed files with 0 additions and 51 deletions
|
@ -114,51 +114,6 @@ static int ds1672_rtc_set_mmss(struct device *dev, unsigned long secs)
|
|||
return ds1672_set_mmss(to_i2c_client(dev), secs);
|
||||
}
|
||||
|
||||
static int ds1672_get_control(struct i2c_client *client, u8 *status)
|
||||
{
|
||||
unsigned char addr = DS1672_REG_CONTROL;
|
||||
|
||||
struct i2c_msg msgs[] = {
|
||||
{/* 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 */
|
||||
if ((i2c_transfer(client->adapter, &msgs[0], 2)) != 2) {
|
||||
dev_err(&client->dev, "%s: read error\n", __func__);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* following are the sysfs callback functions */
|
||||
static ssize_t show_control(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
u8 control;
|
||||
int err;
|
||||
|
||||
err = ds1672_get_control(client, &control);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
return sprintf(buf, "%s\n", (control & DS1672_REG_CONTROL_EOSC)
|
||||
? "disabled" : "enabled");
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(control, S_IRUGO, show_control, NULL);
|
||||
|
||||
static const struct rtc_class_ops ds1672_rtc_ops = {
|
||||
.read_time = ds1672_rtc_read_time,
|
||||
.set_mmss = ds1672_rtc_set_mmss,
|
||||
|
@ -191,12 +146,6 @@ static int ds1672_probe(struct i2c_client *client,
|
|||
|
||||
i2c_set_clientdata(client, rtc);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
err = device_create_file(&client->dev, &dev_attr_control);
|
||||
if (err)
|
||||
dev_err(&client->dev, "Unable to create sysfs entry: %s\n",
|
||||
dev_attr_control.attr.name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue