From: Fabrice Gasnier <fabrice.gasnier@st.com>
To: <jic23@kernel.org>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <mcoquelin.stm32@gmail.com>,
<alexandre.torgue@st.com>, <fabrice.gasnier@st.com>,
<linux-iio@vger.kernel.org>, <lars@metafoo.de>, <knaack.h@gmx.de>,
<pmeerw@pmeerw.net>, <linux-stm32@st-md-mailman.stormreply.com>,
<arnaud.pouliquen@st.com>, <olivier.moysan@st.com>
Subject: [PATCH v2 5/8] iio: adc: stm32-dfsdm: enable hw consumer
Date: Thu, 21 Mar 2019 17:47:26 +0100 [thread overview]
Message-ID: <1553186849-6261-6-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1553186849-6261-1-git-send-email-fabrice.gasnier@st.com>
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 <fabrice.gasnier@st.com>
---
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
next prev parent reply other threads:[~2019-03-21 16:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-21 16:47 [PATCH v2 0/8] iio: adc: stm32-dfsdm: add buffer modes Fabrice Gasnier
2019-03-21 16:47 ` [PATCH v2 1/8] iio: adc: stm32-dfsdm: make spi_master_freq more accurate Fabrice Gasnier
2019-03-24 16:41 ` Jonathan Cameron
2019-03-21 16:47 ` [PATCH v2 2/8] iio: adc: stm32-dfsdm: continuous mode depends on current mode Fabrice Gasnier
2019-03-24 16:43 ` Jonathan Cameron
2019-03-21 16:47 ` [PATCH v2 3/8] iio: adc: stm32-dfsdm: move dma enable from start_conv() to start_dma() Fabrice Gasnier
2019-03-24 16:44 ` Jonathan Cameron
2019-03-21 16:47 ` [PATCH v2 4/8] iio: adc: stm32-dfsdm: move dma slave config to start routine Fabrice Gasnier
2019-03-24 16:45 ` Jonathan Cameron
2019-03-21 16:47 ` Fabrice Gasnier [this message]
2019-03-24 16:45 ` [PATCH v2 5/8] iio: adc: stm32-dfsdm: enable hw consumer Jonathan Cameron
2019-03-21 16:47 ` [PATCH v2 6/8] iio: adc: stm32-dfsdm: add support for scan mode Fabrice Gasnier
2019-03-24 16:46 ` Jonathan Cameron
2019-03-21 16:47 ` [PATCH v2 7/8] iio: adc: stm32-dfsdm: add support for buffer modes Fabrice Gasnier
2019-03-24 17:11 ` Jonathan Cameron
2019-03-21 16:47 ` [PATCH v2 8/8] iio: adc: stm32-dfsdm: claim direct mode for raw read and settings Fabrice Gasnier
2019-03-24 17:12 ` Jonathan Cameron
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