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staging:iio:resolver:ad2s1210 drop raw config register access 

This should never have been exposed to userspace

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jonathan Cameron 2011-10-05 15:28:05 +01:00 committed by Greg Kroah-Hartman
parent 29148543c5
commit f97beb535b
1 changed files with 0 additions and 44 deletions
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44
drivers/staging/iio/resolver/ad2s1210.c
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@ -195,47 +195,6 @@ static inline int ad2s1210_soft_reset(struct ad2s1210_state *st)
return ad2s1210_config_write(st, 0x0);
}
/* return the OLD DATA since last spi bus write */
static ssize_t ad2s1210_show_raw(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct ad2s1210_state *st = iio_priv(dev_get_drvdata(dev));
int ret = 0;
mutex_lock(&st->lock);
if (st->old_data) {
ret = sprintf(buf, "0x%x\n", st->rx[0]);
st->old_data = false;
}
mutex_unlock(&st->lock);
return ret;
}
static ssize_t ad2s1210_store_raw(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t len)
{
struct ad2s1210_state *st = iio_priv(dev_get_drvdata(dev));
unsigned long udata;
unsigned char data;
int ret;
ret = strict_strtoul(buf, 16, &udata);
if (ret)
return -EINVAL;
data = udata & 0xff;
mutex_lock(&st->lock);
ret = ad2s1210_config_write(st, data);
mutex_unlock(&st->lock);
return ret < 0 ? ret : len;
}
static ssize_t ad2s1210_store_softreset(struct device *dev,
struct device_attribute *attr,
const char *buf,
@ -580,8 +539,6 @@ error_ret:
return ret;
}
static IIO_DEVICE_ATTR(raw_io, S_IRUGO | S_IWUSR,
ad2s1210_show_raw, ad2s1210_store_raw, 0);
static IIO_DEVICE_ATTR(reset, S_IWUSR,
NULL, ad2s1210_store_softreset, 0);
static IIO_DEVICE_ATTR(fclkin, S_IRUGO | S_IWUSR,
@ -631,7 +588,6 @@ static struct iio_chan_spec ad2s1210_channels[] = {
};
static struct attribute *ad2s1210_attributes[] = {
&iio_dev_attr_raw_io.dev_attr.attr,
&iio_dev_attr_reset.dev_attr.attr,
&iio_dev_attr_fclkin.dev_attr.attr,
&iio_dev_attr_fexcit.dev_attr.attr,