diff options
Diffstat (limited to 'drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c')
| -rw-r--r-- | drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c index f53f50d08b9e..f7b5a70be30f 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c @@ -3,6 +3,7 @@ * Copyright (C) 2012 Invensense, Inc. */ +#include <linux/pm_runtime.h> #include "inv_mpu_iio.h" static unsigned int inv_scan_query_mpu6050(struct iio_dev *indio_dev) @@ -156,41 +157,43 @@ int inv_mpu6050_prepare_fifo(struct inv_mpu6050_state *st, bool enable) static int inv_mpu6050_set_enable(struct iio_dev *indio_dev, bool enable) { struct inv_mpu6050_state *st = iio_priv(indio_dev); + struct device *pdev = regmap_get_device(st->map); unsigned int scan; int result; - scan = inv_scan_query(indio_dev); - if (enable) { - result = inv_mpu6050_set_power_itg(st, true); - if (result) + scan = inv_scan_query(indio_dev); + result = pm_runtime_get_sync(pdev); + if (result < 0) { + pm_runtime_put_noidle(pdev); return result; + } + /* + * In case autosuspend didn't trigger, turn off first not + * required sensors. + */ + result = inv_mpu6050_switch_engine(st, false, ~scan); + if (result) + goto error_power_off; result = inv_mpu6050_switch_engine(st, true, scan); if (result) goto error_power_off; st->skip_samples = inv_compute_skip_samples(st); result = inv_mpu6050_prepare_fifo(st, true); if (result) - goto error_sensors_off; + goto error_power_off; } else { result = inv_mpu6050_prepare_fifo(st, false); if (result) - goto error_sensors_off; - result = inv_mpu6050_switch_engine(st, false, scan); - if (result) - goto error_power_off; - - result = inv_mpu6050_set_power_itg(st, false); - if (result) goto error_power_off; + pm_runtime_mark_last_busy(pdev); + pm_runtime_put_autosuspend(pdev); } return 0; -error_sensors_off: - inv_mpu6050_switch_engine(st, false, scan); error_power_off: - inv_mpu6050_set_power_itg(st, false); + pm_runtime_put_autosuspend(pdev); return result; } |