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From: Philippe Schenker <dev@pschenker.ch>
To: linux-iio@vger.kernel.org, Jonathan Cameron <jic23@kernel.org>,
	Stefan Agner <stefan@agner.ch>, Hartmut Knaack <knaack.h@gmx.de>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>,
	David Laight <David.Laight@ACULAB.COM>,
	dev@pschenker.ch,
	Philippe Schenker <philippe.schenker@toradex.com>,
	Max Krummenacher <max.krummenacher@toradex.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	linux-kernel@vger.kernel.org, Lee Jones <lee.jones@linaro.org>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/5] iio: stmpe-adc: Reset possible interrupts
Date: Tue,  7 May 2019 16:36:15 +0200	[thread overview]
Message-ID: <20190507143615.28477-5-dev@pschenker.ch> (raw)
In-Reply-To: <20190507143615.28477-1-dev@pschenker.ch>

From: Philippe Schenker <philippe.schenker@toradex.com>

Clear any interrupt that still is on the device on every channel
this driver is activated for in probe and specific channels in
the timeout handler.

Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>

---

 drivers/iio/adc/stmpe-adc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/iio/adc/stmpe-adc.c b/drivers/iio/adc/stmpe-adc.c
index cc752a47444c..a5990e9f2c80 100644
--- a/drivers/iio/adc/stmpe-adc.c
+++ b/drivers/iio/adc/stmpe-adc.c
@@ -80,6 +80,8 @@ static int stmpe_read_voltage(struct stmpe_adc *info,
 	ret = wait_for_completion_timeout(&info->completion, STMPE_ADC_TIMEOUT);
 
 	if (ret <= 0) {
+		stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA,
+				STMPE_ADC_CH(info->channel));
 		mutex_unlock(&info->lock);
 		return -ETIMEDOUT;
 	}
@@ -326,6 +328,9 @@ static int stmpe_adc_probe(struct platform_device *pdev)
 	stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_EN,
 			~(norequest_mask & 0xFF));
 
+	stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_STA,
+			~(norequest_mask & 0xFF));
+
 	return devm_iio_device_register(&pdev->dev, indio_dev);
 }
 
-- 
2.21.0


  parent reply	other threads:[~2019-05-07 14:36 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-07 14:36 [PATCH 1/5] iio: stmpe-adc: Add compatible name Philippe Schenker
2019-05-07 14:36 ` [PATCH 2/5] iio: stmpe-adc: Reinit completion struct on begin conversion Philippe Schenker
2019-05-11 10:08   ` Jonathan Cameron
2019-05-13  7:26     ` Philippe Schenker
2019-05-07 14:36 ` [PATCH 3/5] iio: stmpe-adc: Enable all stmpe-adc interrupts just once Philippe Schenker
2019-05-11 10:09   ` Jonathan Cameron
2019-05-07 14:36 ` [PATCH 4/5] iio: stmpe-adc: Use wait_for_completion_timeout Philippe Schenker
2019-05-11 10:15   ` Jonathan Cameron
2019-05-13  7:28     ` Philippe Schenker
2019-05-07 14:36 ` Philippe Schenker [this message]
2019-05-11 10:24   ` [PATCH 5/5] iio: stmpe-adc: Reset possible interrupts Jonathan Cameron
2019-05-13  7:47     ` Philippe Schenker
2019-05-08  7:01 ` [PATCH 1/5] iio: stmpe-adc: Add compatible name Lee Jones
2019-05-08  7:28   ` Philippe Schenker
2019-05-11  9:58 ` Jonathan Cameron

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