linux-kernel - [PATCH] iio: Replace occurrences of magic number 0 by IIO_CHAN_INFO

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Date:   Tue, 6 Mar 2018 09:02:57 -0300
From:   Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     daniel.baluta@....com, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] iio: Replace occurrences of magic number 0 by
 IIO_CHAN_INFO_RAW

Usually, functions responsible for reading raw data typically relies on
values from iio_chan_info_enum to correctly identify the type of data to
be read. There is a set of a device driver that uses the magic number 0
instead of IIO_CHAN_INFO_RAW. This patch improves the readability by
replaces the magic number 0 for the appropriate IIO_CHAN_INFO_RAW in six
devices driver in the IIO subsystem.

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@...il.com>
---
 drivers/iio/accel/hid-sensor-accel-3d.c | 2 +-
 drivers/iio/dac/ad5380.c                | 2 +-
 drivers/iio/dac/ad5764.c                | 2 +-
 drivers/iio/gyro/hid-sensor-gyro-3d.c   | 2 +-
 drivers/iio/light/hid-sensor-als.c      | 2 +-
 drivers/iio/light/lm3533-als.c          | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index c066a3bdbff7..41d97faf5013 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -155,7 +155,7 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
 	*val = 0;
 	*val2 = 0;
 	switch (mask) {
-	case 0:
+	case IIO_CHAN_INFO_RAW:
 		hid_sensor_power_state(&accel_state->common_attributes, true);
 		report_id = accel_state->accel[chan->scan_index].report_id;
 		address = accel_3d_addresses[chan->scan_index];
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 845fd1c0fd9d..873c2bf637c0 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -158,7 +158,7 @@ static unsigned int ad5380_info_to_reg(struct iio_chan_spec const *chan,
 	long info)
 {
 	switch (info) {
-	case 0:
+	case IIO_CHAN_INFO_RAW:
 		return AD5380_REG_DATA(chan->address);
 	case IIO_CHAN_INFO_CALIBBIAS:
 		return AD5380_REG_OFFSET(chan->address);
diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c
index 033f20eca616..9333177062c0 100644
--- a/drivers/iio/dac/ad5764.c
+++ b/drivers/iio/dac/ad5764.c
@@ -168,7 +168,7 @@ static int ad5764_read(struct iio_dev *indio_dev, unsigned int reg,
 static int ad5764_chan_info_to_reg(struct iio_chan_spec const *chan, long info)
 {
 	switch (info) {
-	case 0:
+	case IIO_CHAN_INFO_RAW:
 		return AD5764_REG_DATA(chan->address);
 	case IIO_CHAN_INFO_CALIBBIAS:
 		return AD5764_REG_OFFSET(chan->address);
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index f59995a90387..36941e69f959 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -115,7 +115,7 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
 	*val = 0;
 	*val2 = 0;
 	switch (mask) {
-	case 0:
+	case IIO_CHAN_INFO_RAW:
 		hid_sensor_power_state(&gyro_state->common_attributes, true);
 		report_id = gyro_state->gyro[chan->scan_index].report_id;
 		address = gyro_3d_addresses[chan->scan_index];
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index befd693a4a31..406caaee9a3c 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -97,7 +97,7 @@ static int als_read_raw(struct iio_dev *indio_dev,
 	*val = 0;
 	*val2 = 0;
 	switch (mask) {
-	case 0:
+	case IIO_CHAN_INFO_RAW:
 		switch (chan->scan_index) {
 		case  CHANNEL_SCAN_INDEX_INTENSITY:
 		case  CHANNEL_SCAN_INDEX_ILLUM:
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index 36208a3652e9..ff5a3324b489 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -199,7 +199,7 @@ static int lm3533_als_read_raw(struct iio_dev *indio_dev,
 	int ret;
 
 	switch (mask) {
-	case 0:
+	case IIO_CHAN_INFO_RAW:
 		switch (chan->type) {
 		case IIO_LIGHT:
 			ret = lm3533_als_get_adc(indio_dev, false, val);
-- 
2.16.2