Optionally enable IIO hw consumer, when provided (e.g. for DFSDM_IIO type). This is precursor patch to introduce buffer modes.
Signed-off-by: Fabrice Gasnier <[email protected]> --- drivers/iio/adc/stm32-dfsdm-adc.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c index 66e2ea0..b491424 100644 --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -630,9 +630,15 @@ static int stm32_dfsdm_postenable(struct iio_dev *indio_dev) /* Reset adc buffer index */ adc->bufi = 0; + if (adc->hwc) { + ret = iio_hw_consumer_enable(adc->hwc); + if (ret < 0) + return ret; + } + ret = stm32_dfsdm_start_dfsdm(adc->dfsdm); if (ret < 0) - return ret; + goto err_stop_hwc; ret = stm32_dfsdm_adc_dma_start(indio_dev); if (ret) { @@ -652,6 +658,9 @@ static int stm32_dfsdm_postenable(struct iio_dev *indio_dev) stm32_dfsdm_adc_dma_stop(indio_dev); stop_dfsdm: stm32_dfsdm_stop_dfsdm(adc->dfsdm); +err_stop_hwc: + if (adc->hwc) + iio_hw_consumer_disable(adc->hwc); return ret; } @@ -667,6 +676,9 @@ static int stm32_dfsdm_predisable(struct iio_dev *indio_dev) stm32_dfsdm_stop_dfsdm(adc->dfsdm); + if (adc->hwc) + iio_hw_consumer_disable(adc->hwc); + return 0; } -- 2.7.4
