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Commit 9491f75f authored by Fabrice Gasnier's avatar Fabrice Gasnier Committed by Jonathan Cameron
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iio: adc: stm32-dfsdm: enable hw consumer 



Optionally enable IIO hw consumer, when provided (e.g. for DFSDM_IIO type).
This is precursor patch to introduce buffer modes.

Signed-off-by: default avatarFabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 74648508

drivers/iio/adc/stm32-dfsdm-adc.c

+13 −1
Original line number Diff line number Diff line
@@ -630,9 +630,15 @@ static int stm32_dfsdm_postenable(struct iio_dev *indio_dev) 
	/* Reset adc buffer index */

	adc->bufi = 0;



	ret = stm32_dfsdm_start_dfsdm(adc->dfsdm);

	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)

		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;

}