From: Jonathan Cameron <jic23@kernel.org>
To: Matt Ranostay <matt.ranostay@konsulko.com>
Cc: linux-iio@vger.kernel.org
Subject: Re: [PATCH v4 1/3] iio: chemical: atlas-sensor: allow probe without interrupt line
Date: Sat, 8 Feb 2020 16:39:43 +0000 [thread overview]
Message-ID: <20200208163943.098ba614@archlinux> (raw)
In-Reply-To: <20200206061332.20427-2-matt.ranostay@konsulko.com>
On Wed, 5 Feb 2020 22:13:30 -0800
Matt Ranostay <matt.ranostay@konsulko.com> wrote:
> 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.
Basic aim is good, but if you don't have an interrupt doesn't make
sense to register the trigger either.
The interrupt enable / disable is also tied up with the buffer whereas
it should probably be done via the trigger enable callback or am I
missing something?
Jonathan
>
> 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);
next prev parent reply other threads:[~2020-02-08 16:39 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 ` [PATCH v4 1/3] iio: chemical: atlas-sensor: allow probe without interrupt line Matt Ranostay
2020-02-07 0:53 ` Jeremy Fertic
2020-02-07 4:59 ` Matt Ranostay
2020-02-08 16:39 ` Jonathan Cameron [this message]
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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