and be consistent with other setter functions in that first argument
is hmc5843_data
Signed-off-by: Peter Meerwald <pmeerw@xxxxxxxxxx>
---
drivers/staging/iio/magnetometer/hmc5843.c | 30 +++++++++++++++-------------
1 file changed, 16 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 7934960..a88473b 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -184,12 +184,18 @@ struct hmc5843_data {
};
/* The lower two bits contain the current conversion mode */
-static s32 hmc5843_configure(struct i2c_client *client,
- u8 operating_mode)
+static s32 hmc5843_set_mode(struct hmc5843_data *data, u8 operating_mode)
{
- return i2c_smbus_write_byte_data(client,
- HMC5843_MODE_REG,
+ int ret;
+
+ mutex_lock(&data->lock);
+ ret = i2c_smbus_write_byte_data(data->client, HMC5843_MODE_REG,
operating_mode & HMC5843_MODE_MASK);
+ if (ret >= 0)
+ data->operating_mode = operating_mode;
+ mutex_unlock(&data->lock);
+
+ return ret;
}
static int hmc5843_wait_measurement(struct hmc5843_data *data)
@@ -554,7 +560,7 @@ static void hmc5843_init(struct hmc5843_data *data)
{
hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
hmc5843_set_rate(data, HMC5843_RATE_DEFAULT);
- hmc5843_configure(data->client, HMC5843_MODE_CONVERSION_CONTINUOUS);
+ hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_B,
HMC5843_RANGE_GAIN_DEFAULT);
}
@@ -621,7 +627,7 @@ static int hmc5843_remove(struct i2c_client *client)
iio_triggered_buffer_cleanup(indio_dev);
/* sleep mode to save power */
- hmc5843_configure(client, HMC5843_MODE_SLEEP);
+ hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP);
return 0;
}
@@ -629,18 +635,14 @@ static int hmc5843_remove(struct i2c_client *client)
#ifdef CONFIG_PM_SLEEP
static int hmc5843_suspend(struct device *dev)
{
- hmc5843_configure(to_i2c_client(dev), HMC5843_MODE_SLEEP);
-
- return 0;
+ return hmc5843_set_mode(iio_priv(dev_to_iio_dev(dev)),
+ HMC5843_MODE_SLEEP);
}
static int hmc5843_resume(struct device *dev)
{
- struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-
- hmc5843_configure(data->client, data->operating_mode);
-
- return 0;
+ return hmc5843_set_mode(iio_priv(dev_to_iio_dev(dev)),
+ HMC5843_MODE_CONVERSION_CONTINUOUS);
}
static SIMPLE_DEV_PM_OPS(hmc5843_pm_ops, hmc5843_suspend, hmc5843_resume);
--
1.7.9.5
--
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