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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 5/8] iio: adc: stm32-dfsdm: enable hw consumer
Date: Wed, 6 Mar 2019 09:55:21 +0100	[thread overview]
Message-ID: <1551862524-25098-6-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1551862524-25098-1-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


WARNING: multiple messages have this Message-ID (diff)
From: Fabrice Gasnier <fabrice.gasnier@st.com>
To: <jic23@kernel.org>
Cc: lars@metafoo.de, olivier.moysan@st.com, alexandre.torgue@st.com,
	linux-iio@vger.kernel.org, pmeerw@pmeerw.net,
	arnaud.pouliquen@st.com, linux-kernel@vger.kernel.org,
	mcoquelin.stm32@gmail.com, knaack.h@gmx.de,
	fabrice.gasnier@st.com, linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/8] iio: adc: stm32-dfsdm: enable hw consumer
Date: Wed, 6 Mar 2019 09:55:21 +0100	[thread overview]
Message-ID: <1551862524-25098-6-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1551862524-25098-1-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


_______________________________________________
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2019-03-06  8:56 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-06  8:55 [PATCH 0/8] iio: adc: stm32-dfsdm: add buffer modes Fabrice Gasnier
2019-03-06  8:55 ` Fabrice Gasnier
2019-03-06  8:55 ` [PATCH 1/8] iio: adc: stm32-dfsdm: make spi_master_freq more accurate Fabrice Gasnier
2019-03-06  8:55   ` Fabrice Gasnier
2019-03-10 10:09   ` Jonathan Cameron
2019-03-10 10:09     ` Jonathan Cameron
2019-03-21 13:41     ` Fabrice Gasnier
2019-03-21 13:41       ` Fabrice Gasnier
2019-03-06  8:55 ` [PATCH 2/8] iio: adc: stm32-dfsdm: continuous mode depends on current mode Fabrice Gasnier
2019-03-06  8:55   ` Fabrice Gasnier
2019-03-06  8:55 ` [PATCH 3/8] iio: adc: stm32-dfsdm: move dma enable from start_conv() to start_dma() Fabrice Gasnier
2019-03-06  8:55   ` Fabrice Gasnier
2019-03-06  8:55 ` [PATCH 4/8] iio: adc: stm32-dfsdm: move dma slave config to start routine Fabrice Gasnier
2019-03-06  8:55   ` Fabrice Gasnier
2019-03-06  8:55 ` Fabrice Gasnier [this message]
2019-03-06  8:55   ` [PATCH 5/8] iio: adc: stm32-dfsdm: enable hw consumer Fabrice Gasnier
2019-03-06  8:55 ` [PATCH 6/8] iio: adc: stm32-dfsdm: add support for scan mode Fabrice Gasnier
2019-03-06  8:55   ` Fabrice Gasnier
2019-03-06  8:55 ` [PATCH 7/8] iio: adc: stm32-dfsdm: add support for buffer modes Fabrice Gasnier
2019-03-06  8:55   ` Fabrice Gasnier
2019-03-10 10:21   ` Jonathan Cameron
2019-03-10 10:21     ` Jonathan Cameron
2019-03-15 18:01     ` Fabrice Gasnier
2019-03-15 18:01       ` Fabrice Gasnier
2019-03-16 14:10       ` Jonathan Cameron
2019-03-16 14:10         ` Jonathan Cameron
2019-03-21 13:41         ` Fabrice Gasnier
2019-03-21 13:41           ` Fabrice Gasnier
2019-03-06  8:55 ` [PATCH 8/8] iio: adc: stm32-dfsdm: claim direct mode for raw read and settings Fabrice Gasnier
2019-03-06  8:55   ` Fabrice Gasnier

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