iio: accel: bmi088: Balance runtime pm + use pm_runtime_resume_and_get()

The call to pm_runtime_put_noidle() in remove() is not balanced by a get so
drop it.

Using pm_runtime_resume_and_get() allows for simple introduction of
error handling to allow for runtime resume failing.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Mike Looijmans <mike.looijmans@topic.nl>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/20210509113354.660190-13-jic23@kernel.org

drivers/iio/accel/bmi088-accel-core.c

@@ -285,11 +285,17 @@ static int bmi088_accel_read_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_RAW:
 		switch (chan->type) {
 		case IIO_TEMP:
-			pm_runtime_get_sync(dev);
+			ret = pm_runtime_resume_and_get(dev);
+			if (ret)
+				return ret;
+
 			ret = bmi088_accel_get_temp(data, val);
 			goto out_read_raw_pm_put;
 		case IIO_ACCEL:
-			pm_runtime_get_sync(dev);
+			ret = pm_runtime_resume_and_get(dev);
+			if (ret)
+				return ret;
+
 			ret = iio_device_claim_direct_mode(indio_dev);
 			if (ret)
 				goto out_read_raw_pm_put;
@@ -319,7 +325,10 @@ static int bmi088_accel_read_raw(struct iio_dev *indio_dev,
 			*val = BMI088_ACCEL_TEMP_UNIT;
 			return IIO_VAL_INT;
 		case IIO_ACCEL:
-			pm_runtime_get_sync(dev);
+			ret = pm_runtime_resume_and_get(dev);
+			if (ret)
+				return ret;
+
 			ret = regmap_read(data->regmap,
 					  BMI088_ACCEL_REG_ACC_RANGE, val);
 			if (ret)
@@ -334,7 +343,10 @@ static int bmi088_accel_read_raw(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 	case IIO_CHAN_INFO_SAMP_FREQ:
-		pm_runtime_get_sync(dev);
+		ret = pm_runtime_resume_and_get(dev);
+		if (ret)
+			return ret;
+
 		ret = bmi088_accel_get_sample_freq(data, val, val2);
 		goto out_read_raw_pm_put;
 	default:
@@ -376,7 +388,10 @@ static int bmi088_accel_write_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_SAMP_FREQ:
-		pm_runtime_get_sync(dev);
+		ret = pm_runtime_resume_and_get(dev);
+		if (ret)
+			return ret;
+
 		ret = bmi088_accel_set_sample_freq(data, val);
 		pm_runtime_mark_last_busy(dev);
 		pm_runtime_put_autosuspend(dev);
@@ -530,7 +545,6 @@ int bmi088_accel_core_remove(struct device *dev)
 
 	pm_runtime_disable(dev);
 	pm_runtime_set_suspended(dev);
-	pm_runtime_put_noidle(dev);
 	bmi088_accel_power_down(data);
 
 	return 0;