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>
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@ -195,47 +195,6 @@ static inline int ad2s1210_soft_reset(struct ad2s1210_state *st)
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return ad2s1210_config_write(st, 0x0);
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}
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/* return the OLD DATA since last spi bus write */
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static ssize_t ad2s1210_show_raw(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct ad2s1210_state *st = iio_priv(dev_get_drvdata(dev));
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int ret = 0;
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mutex_lock(&st->lock);
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if (st->old_data) {
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ret = sprintf(buf, "0x%x\n", st->rx[0]);
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st->old_data = false;
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}
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mutex_unlock(&st->lock);
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return ret;
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}
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static ssize_t ad2s1210_store_raw(struct device *dev,
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struct device_attribute *attr,
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const char *buf,
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size_t len)
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{
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struct ad2s1210_state *st = iio_priv(dev_get_drvdata(dev));
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unsigned long udata;
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unsigned char data;
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int ret;
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ret = strict_strtoul(buf, 16, &udata);
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if (ret)
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return -EINVAL;
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data = udata & 0xff;
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mutex_lock(&st->lock);
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ret = ad2s1210_config_write(st, data);
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mutex_unlock(&st->lock);
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return ret < 0 ? ret : len;
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}
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static ssize_t ad2s1210_store_softreset(struct device *dev,
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struct device_attribute *attr,
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const char *buf,
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@ -580,8 +539,6 @@ error_ret:
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return ret;
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}
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static IIO_DEVICE_ATTR(raw_io, S_IRUGO | S_IWUSR,
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ad2s1210_show_raw, ad2s1210_store_raw, 0);
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static IIO_DEVICE_ATTR(reset, S_IWUSR,
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NULL, ad2s1210_store_softreset, 0);
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static IIO_DEVICE_ATTR(fclkin, S_IRUGO | S_IWUSR,
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@ -631,7 +588,6 @@ static struct iio_chan_spec ad2s1210_channels[] = {
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};
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static struct attribute *ad2s1210_attributes[] = {
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&iio_dev_attr_raw_io.dev_attr.attr,
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&iio_dev_attr_reset.dev_attr.attr,
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&iio_dev_attr_fclkin.dev_attr.attr,
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&iio_dev_attr_fexcit.dev_attr.attr,
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