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iio: accel: bmc150: Error handling when mode set fails

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When mode set fails due to some transient failures, it will atleast
reset the state of runtime usage count and also let the runtime
suspend retry from the driver framework.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Srinivas Pandruvada 2014-10-10 20:35:31 -07:00 committed by Jonathan Cameron
parent 6896ab3a8c
commit aaeecd8044
1 changed files with 10 additions and 1 deletions
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11
drivers/iio/accel/bmc150-accel.c
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@ -536,6 +536,9 @@ static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
if (ret < 0) {
dev_err(&data->client->dev,
"Failed: bmc150_accel_set_power_state for %d\n", on);
if (on)
pm_runtime_put_noidle(&data->client->dev);
return ret;
}
@ -811,6 +814,7 @@ static int bmc150_accel_write_event_config(struct iio_dev *indio_dev,
ret = bmc150_accel_setup_any_motion_interrupt(data, state);
if (ret < 0) {
bmc150_accel_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
}
@ -1054,6 +1058,7 @@ static int bmc150_accel_data_rdy_trigger_set_state(struct iio_trigger *trig,
else
ret = bmc150_accel_setup_new_data_interrupt(data, state);
if (ret < 0) {
bmc150_accel_set_power_state(data, false);
mutex_unlock(&data->mutex);
return ret;
}
@ -1354,10 +1359,14 @@ static int bmc150_accel_runtime_suspend(struct device *dev)
{
struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
struct bmc150_accel_data *data = iio_priv(indio_dev);
int ret;
dev_dbg(&data->client->dev, __func__);
ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_SUSPEND, 0);
if (ret < 0)
return -EAGAIN;
return bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_SUSPEND, 0);
return 0;
}
static int bmc150_accel_runtime_resume(struct device *dev)