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Diffstat (limited to 'drivers/iio/imu/adis_buffer.c')
-rw-r--r--drivers/iio/imu/adis_buffer.c45
1 files changed, 27 insertions, 18 deletions
diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c
index 871b78b225e2..5bde698cce18 100644
--- a/drivers/iio/imu/adis_buffer.c
+++ b/drivers/iio/imu/adis_buffer.c
@@ -126,32 +126,41 @@ int adis_update_scan_mode(struct iio_dev *indio_dev,
}
EXPORT_SYMBOL_NS_GPL(adis_update_scan_mode, IIO_ADISLIB);
-static irqreturn_t adis_trigger_handler(int irq, void *p)
+static int adis_paging_trigger_handler(struct adis *adis)
{
- struct iio_poll_func *pf = p;
- struct iio_dev *indio_dev = pf->indio_dev;
- struct adis *adis = iio_device_get_drvdata(indio_dev);
int ret;
- if (adis->data->has_paging) {
- mutex_lock(&adis->state_lock);
- if (adis->current_page != 0) {
- adis->tx[0] = ADIS_WRITE_REG(ADIS_REG_PAGE_ID);
- adis->tx[1] = 0;
- ret = spi_write(adis->spi, adis->tx, 2);
- if (ret) {
- dev_err(&adis->spi->dev, "Failed to change device page: %d\n", ret);
- mutex_unlock(&adis->state_lock);
- goto irq_done;
- }
-
- adis->current_page = 0;
+ mutex_lock(&adis->state_lock);
+ if (adis->current_page != 0) {
+ adis->tx[0] = ADIS_WRITE_REG(ADIS_REG_PAGE_ID);
+ adis->tx[1] = 0;
+ ret = spi_write(adis->spi, adis->tx, 2);
+ if (ret) {
+ dev_err(&adis->spi->dev, "Failed to change device page: %d\n", ret);
+ mutex_unlock(&adis->state_lock);
+ return ret;
}
+
+ adis->current_page = 0;
}
ret = spi_sync(adis->spi, &adis->msg);
+ mutex_unlock(&adis->state_lock);
+
+ return ret;
+}
+
+static irqreturn_t adis_trigger_handler(int irq, void *p)
+{
+ struct iio_poll_func *pf = p;
+ struct iio_dev *indio_dev = pf->indio_dev;
+ struct adis *adis = iio_device_get_drvdata(indio_dev);
+ int ret;
+
if (adis->data->has_paging)
- mutex_unlock(&adis->state_lock);
+ ret = adis_paging_trigger_handler(adis);
+ else
+ ret = spi_sync(adis->spi, &adis->msg);
if (ret) {
dev_err(&adis->spi->dev, "Failed to read data: %d", ret);
goto irq_done;