[PATCH 4/7] iio:gyro: introduce st_gyro_multiread_bit() function

Denis Ciocca
2019-06-17T23:50:24Z

This function is introduced as a preparation for regmap usage.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
---
drivers/iio/gyro/st_gyro.h | 1 +
drivers/iio/gyro/st_gyro_core.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)

diff --git a/drivers/iio/gyro/st_gyro.h b/drivers/iio/gyro/st_gyro.h
index 460d190be4a4..bf23cb8a59c0 100644
--- a/drivers/iio/gyro/st_gyro.h
+++ b/drivers/iio/gyro/st_gyro.h
@@ -32,6 +32,7 @@ static const struct st_sensors_platform_data gyro_pdata = {
.drdy_int_pin = 2,
};

+bool st_gyro_multiread_bit(const char *name);
int st_gyro_common_probe(struct iio_dev *indio_dev);
void st_gyro_common_remove(struct iio_dev *indio_dev);

diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index e995dc77e30e..84a014fdcad2 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -368,6 +368,22 @@ static const struct iio_trigger_ops st_gyro_trigger_ops = {
#define ST_GYRO_TRIGGER_OPS NULL
#endif

+/*
+ * st_gyro_multiread_bit() - check if device requires multi-read bit.
+ * @name: device name buffer reference.
+ */
+bool st_gyro_multiread_bit(const char *name)
+{
+ int index = st_sensors_get_settings_index(name,
+ st_gyro_sensors_settings,
+ ARRAY_SIZE(st_gyro_sensors_settings));
+ if (index < 0)
+ return false;
+
+ return st_gyro_sensors_settings[index].multi_read_bit;
+}
+EXPORT_SYMBOL(st_gyro_multiread_bit);
+
int st_gyro_common_probe(struct iio_dev *indio_dev)
{
struct st_sensor_data *gdata = iio_priv(indio_dev);
--
2.22.0