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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-03 12:48:59 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-03 12:48:59 -0700
commit868b60e0550247fc83630070ff64bbfb803b2347 (patch)
tree1467d993b4923ed0e4f77fc5ab8c81e23f0d533b /drivers/iio/magnetometer/ak8975.c
parentc9d53c0f2d23c792e4b9cf1551b63de4516f839e (diff)
parent6955b58254c2bcee8a7b55ce06468a645dc98ec5 (diff)
downloadop-kernel-dev-868b60e0550247fc83630070ff64bbfb803b2347.zip
op-kernel-dev-868b60e0550247fc83630070ff64bbfb803b2347.tar.gz
Merge branch 'component-for-driver' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into driver-core-next
Russell writes: These updates fix one bug in the component helper where the matched components are not properly cleaned up when the master fails to bind. I'll provide a version of this for stable trees if it's deemed that we need to backport it. The second patch causes the component helper to ignore duplicate matches when adding components - this is something that was originally needed for imx-drm, but since that has now been updated, we no longer need to skip over a component which has already been matched. The final patch starts the process of updating the component helper API to achieve two goals: to allow the API to be more efficient when deferred probing occurs, and to allow for future improvements to the component helper without having a major impact on the users. This represents groundwork for some other changes; once this has been merged, I will then send two further pull requests (one for the staging tree, and one for the DRM tree) to update the drivers to the new API. This will result in these three commits being shared with those trees.
Diffstat (limited to 'drivers/iio/magnetometer/ak8975.c')
-rw-r--r--drivers/iio/magnetometer/ak8975.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 09ea5c4..ea08313 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -373,8 +373,6 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
{
struct ak8975_data *data = iio_priv(indio_dev);
struct i2c_client *client = data->client;
- u16 meas_reg;
- s16 raw;
int ret;
mutex_lock(&data->lock);
@@ -422,16 +420,11 @@ static int ak8975_read_axis(struct iio_dev *indio_dev, int index, int *val)
dev_err(&client->dev, "Read axis data fails\n");
goto exit;
}
- meas_reg = ret;
mutex_unlock(&data->lock);
- /* Endian conversion of the measured values. */
- raw = (s16) (le16_to_cpu(meas_reg));
-
/* Clamp to valid range. */
- raw = clamp_t(s16, raw, -4096, 4095);
- *val = raw;
+ *val = clamp_t(s16, ret, -4096, 4095);
return IIO_VAL_INT;
exit:
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