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From: Matt Ranostay <matt.ranostay@konsulko.com>
To: linux-iio@vger.kernel.org
Cc: jic23@kernel.org, Matt Ranostay <matt.ranostay@konsulko.com>
Subject: [PATCH v4 1/3] iio: chemical: atlas-sensor: allow probe without interrupt line
Date: Wed,  5 Feb 2020 22:13:30 -0800	[thread overview]
Message-ID: <20200206061332.20427-2-matt.ranostay@konsulko.com> (raw)
In-Reply-To: <20200206061332.20427-1-matt.ranostay@konsulko.com>

Sensors don't actually need a interrupt line to give valid readings,
and can triggered with CONFIG_IIO_HRTIMER_TRIGGER as well. Remove
the required check for interrupt, and continue along in the probe
function.

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
---
 drivers/iio/chemical/atlas-sensor.c | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c
index 2f0a6fed2589..2e34c82cb65d 100644
--- a/drivers/iio/chemical/atlas-sensor.c
+++ b/drivers/iio/chemical/atlas-sensor.c
@@ -572,11 +572,6 @@ static int atlas_probe(struct i2c_client *client,
 	if (ret)
 		return ret;
 
-	if (client->irq <= 0) {
-		dev_err(&client->dev, "no valid irq defined\n");
-		return -EINVAL;
-	}
-
 	ret = chip->calibration(data);
 	if (ret)
 		return ret;
@@ -596,16 +591,18 @@ static int atlas_probe(struct i2c_client *client,
 
 	init_irq_work(&data->work, atlas_work_handler);
 
-	/* interrupt pin toggles on new conversion */
-	ret = devm_request_threaded_irq(&client->dev, client->irq,
-					NULL, atlas_interrupt_handler,
-					IRQF_TRIGGER_RISING |
-					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-					"atlas_irq",
-					indio_dev);
-	if (ret) {
-		dev_err(&client->dev, "request irq (%d) failed\n", client->irq);
-		goto unregister_buffer;
+	if (client->irq <= 0) {
+		/* interrupt pin toggles on new conversion */
+		ret = devm_request_threaded_irq(&client->dev, client->irq,
+				NULL, atlas_interrupt_handler,
+				IRQF_TRIGGER_RISING |
+				IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+				"atlas_irq",
+				indio_dev);
+
+		if (ret)
+			dev_warn(&client->dev,
+				"request irq (%d) failed\n", client->irq);
 	}
 
 	ret = atlas_set_powermode(data, 1);
-- 
2.20.1


  reply	other threads:[~2020-02-06  6:24 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-06  6:13 [PATCH v4 0/3] iio: chemical: atlas-sensor: add DO support Matt Ranostay
2020-02-06  6:13 ` Matt Ranostay [this message]
2020-02-07  0:53   ` [PATCH v4 1/3] iio: chemical: atlas-sensor: allow probe without interrupt line Jeremy Fertic
2020-02-07  4:59     ` Matt Ranostay
2020-02-08 16:39   ` Jonathan Cameron
2020-02-09  2:12     ` Matt Ranostay
2020-02-09  2:16       ` Matt Ranostay
2020-02-14 13:27       ` Jonathan Cameron
2020-02-06  6:13 ` [PATCH v4 2/3] iio: chemical: atlas-sensor: add DO-SM module support Matt Ranostay
2020-02-08 16:41   ` Jonathan Cameron
2020-02-06  6:13 ` [PATCH v4 3/3] dt-bindings: iio: chemical: consolidate atlas-sensor docs Matt Ranostay
2020-02-06 21:52   ` Rob Herring
2020-02-08 16:34   ` Jonathan Cameron

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