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From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Jonathan Albrieux <jonathan.albrieux@gmail.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Hartmut Knaack <knaack.h@gmx.de>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	"open list:IIO SUBSYSTEM AND DRIVERS" <linux-iio@vger.kernel.org>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	Steve Winslow <swinslow@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jonathan Cameron <jic23@kernel.org>
Subject: Re: [PATCH 3/3] iio: magnetometer: ak8975: Add gpio reset support
Date: Mon, 18 May 2020 17:55:51 +0300	[thread overview]
Message-ID: <CAHp75VdFJUNOtRyCNEGnvoOCZYoPvyhjC15_iC72JD-1sOavwA@mail.gmail.com> (raw)
In-Reply-To: <20200518133645.19127-4-jonathan.albrieux@gmail.com>

On Mon, May 18, 2020 at 4:38 PM Jonathan Albrieux
<jonathan.albrieux@gmail.com> wrote:

> +       gpiod_set_value_cansleep(data->reset_gpiod, 1);

(1)

...

> +       /*
> +        * If reset pin is provided then will be set to high on power on
> +        * and to low on power off according to AK09911 datasheet
> +        */

Wording is confusing, perhaps you have to use 'asserted / deasserted'.

Btw, in (1) it's also "high" (asserted). I barely understand how it's
supposed to work in all cases?

> +       reset_gpiod = devm_gpiod_get_optional(&client->dev,
> +                                             "reset", GPIOD_OUT_HIGH);
> +       if (IS_ERR(reset_gpiod))
> +               return PTR_ERR(reset_gpiod);


-- 
With Best Regards,
Andy Shevchenko

  reply	other threads:[~2020-05-18 14:56 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-18 13:36 [PATCH 0/3] iio: magnetometer: ak8975: Add gpio reset support Jonathan Albrieux
2020-05-18 13:36 ` [PATCH 1/3] dt-bindings: iio: magnetometer: ak8975: convert txt format to yaml Jonathan Albrieux
2020-05-18 13:36 ` [PATCH 2/3] dt-bindings: iio: magnetometer: ak8975: add gpio reset support Jonathan Albrieux
2020-05-25  8:43   ` Linus Walleij
2020-05-25 10:53     ` Jonathan Albrieux
2020-05-18 13:36 ` [PATCH 3/3] iio: magnetometer: ak8975: Add " Jonathan Albrieux
2020-05-18 14:55   ` Andy Shevchenko [this message]
2020-05-18 16:01     ` Jonathan Albrieux
2020-05-18 16:43       ` Andy Shevchenko
2020-05-18 17:43         ` Jonathan Albrieux
2020-05-18 17:51           ` Andy Shevchenko
2020-05-18 18:46             ` Jonathan Albrieux
2020-05-29 13:33   ` Pavel Machek

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