diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index c4e928b283f8..44a129f37d9c 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -168,16 +168,48 @@ static int spear_read_raw(struct iio_dev *indio_dev,
 		*val = info->vref_external;
 		*val2 = SPEAR_ADC_DATA_BITS;
 		return IIO_VAL_FRACTIONAL_LOG2;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*val = info->current_clk;
+		return IIO_VAL_INT;
 	}
 
 	return -EINVAL;
 }
 
+static int spear_adc_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct spear_adc_info *info = iio_priv(indio_dev);
+	int ret = 0;
+
+	if (mask != IIO_CHAN_INFO_SAMP_FREQ)
+		return -EINVAL;
+
+	mutex_lock(&indio_dev->mlock);
+
+	if ((val < SPEAR_ADC_CLK_MIN) ||
+		(val > SPEAR_ADC_CLK_MAX) ||
+		(val2 != 0)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	spear_adc_set_clk(info, val);
+
+out:
+	mutex_unlock(&indio_dev->mlock);
+	return ret;
+}
+
 #define SPEAR_ADC_CHAN(idx) {				\
 	.type = IIO_VOLTAGE,				\
 	.indexed = 1,					\
 	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),	\
 	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+	.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),\
 	.channel = idx,					\
 }
 
@@ -219,67 +251,9 @@ static int spear_adc_configure(struct spear_adc_info *info)
 	return 0;
 }
 
-static ssize_t spear_adc_read_frequency(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct spear_adc_info *info = iio_priv(indio_dev);
-
-	return sprintf(buf, "%d\n", info->current_clk);
-}
-
-static ssize_t spear_adc_write_frequency(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct spear_adc_info *info = iio_priv(indio_dev);
-	u32 clk_high, clk_low, count;
-	u32 apb_clk = clk_get_rate(info->clk);
-	unsigned long lval;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &lval);
-	if (ret)
-		return ret;
-
-	mutex_lock(&indio_dev->mlock);
-
-	if ((lval < SPEAR_ADC_CLK_MIN) || (lval > SPEAR_ADC_CLK_MAX)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	count = (apb_clk + lval - 1) / lval;
-	clk_low = count / 2;
-	clk_high = count - clk_low;
-	info->current_clk = apb_clk / count;
-	spear_adc_set_clk(info, lval);
-
-out:
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
-static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
-			      spear_adc_read_frequency,
-			      spear_adc_write_frequency);
-
-static struct attribute *spear_attributes[] = {
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group spear_attribute_group = {
-	.attrs = spear_attributes,
-};
-
 static const struct iio_info spear_adc_iio_info = {
 	.read_raw = &spear_read_raw,
-	.attrs = &spear_attribute_group,
+	.write_raw = &spear_adc_write_raw,
 	.driver_module = THIS_MODULE,
 };