staging:iio:hmc5843: Rename _check_samp_freq to get_samp_freq_index

and drop/inline helper functions _check_int_plus_micros() and
_show_int_plus_micros()
Signed-off-by: NPeter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

drivers/staging/iio/magnetometer/hmc5843.c

@@ -309,15 +309,17 @@ static IIO_DEVICE_ATTR(meas_conf,
 			hmc5843_set_measurement_configuration,
 			0);
 
-static ssize_t hmc5843_show_int_plus_micros(char *buf,
-	const int (*vals)[2], int n)
+static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
+	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	size_t len = 0;
 	int i;
 
-	for (i = 0; i < n; i++)
+	for (i = 0; i < HMC5843_RATE_NOT_USED; i++)
 		len += scnprintf(buf + len, PAGE_SIZE - len,
-			"%d.%d ", vals[i][0], vals[i][1]);
+			"%d.%d ", data->variant->regval_to_samp_freq[i][0],
+			data->variant->regval_to_samp_freq[i][1]);
 
 	/* replace trailing space by newline */
 	buf[len - 1] = '\n';
@@ -325,28 +327,6 @@ static ssize_t hmc5843_show_int_plus_micros(char *buf,
 	return len;
 }
 
-static int hmc5843_check_int_plus_micros(const int (*vals)[2], int n,
-					int val, int val2)
-{
-	int i;
-
-	for (i = 0; i < n; i++) {
-		if (val == vals[i][0] && val2 == vals[i][1])
-			return i;
-	}
-
-	return -EINVAL;
-}
-
-static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-
-	return hmc5843_show_int_plus_micros(buf,
-		data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED);
-}
-
 static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail);
 
 static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
@@ -357,12 +337,17 @@ static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
 		reg_val);
 }
 
-static int hmc5843_check_samp_freq(struct hmc5843_data *data,
+static int hmc5843_get_samp_freq_index(struct hmc5843_data *data,
 				   int val, int val2)
 {
-	return hmc5843_check_int_plus_micros(
-		data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED,
-		val, val2);
+	int i;
+
+	for (i = 0; i < HMC5843_RATE_NOT_USED; i++)
+		if (val == data->variant->regval_to_samp_freq[i][0] &&
+			val2 == data->variant->regval_to_samp_freq[i][1])
+			return i;
+
+	return -EINVAL;
 }
 
 static ssize_t hmc5843_show_scale_avail(struct device *dev,
@@ -430,7 +415,7 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_SAMP_FREQ:
-		rate = hmc5843_check_samp_freq(data, val, val2);
+		rate = hmc5843_get_samp_freq_index(data, val, val2);
 		if (rate < 0)
 			return -EINVAL;