From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Crt Mori <cmo@melexis.com>
Cc: Jonathan Cameron <jic23@kernel.org>,
linux-iio <linux-iio@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v5 3/5] iio:temperature:mlx90632: Convert polling while loop to do-while
Date: Thu, 13 Aug 2020 14:03:25 +0300 [thread overview]
Message-ID: <CAHp75VfNwb5uBp=H0295LEJjXy1+=V5yvSN1PHbtMYzgg=_EAA@mail.gmail.com> (raw)
In-Reply-To: <20200813075125.4949-4-cmo@melexis.com>
On Thu, Aug 13, 2020 at 10:53 AM Crt Mori <cmo@melexis.com> wrote:
>
> Reduce number of lines and improve readability to convert polling while
> loops to do-while. The iopoll.h interface was not used, because we
> require more than 20ms timeout, because time for sensor to perform a
> measurement is around 10ms and it needs to perform measurements for each
> channel (which currently is 3).
I don't see how it prevents using iopoll.h. It uses usleep_range()
under the hood in the same way you did here, but open coded.
...
> - while (tries-- > 0) {
> + do {
> ret = regmap_read(data->regmap, MLX90632_REG_STATUS,
> ®_status);
> if (ret < 0)
> return ret;
> - if (reg_status & MLX90632_STAT_DATA_RDY)
> - break;
> usleep_range(10000, 11000);
> - }
> + } while (!(reg_status & MLX90632_STAT_DATA_RDY) && tries--);
>
> if (tries < 0) {
> dev_err(&data->client->dev, "data not ready");
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-08-13 11:03 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-13 7:51 [PATCH v5 0/5] iio: temperature: mlx90632: Add extended calibration calculations Crt Mori
2020-08-13 7:51 ` [PATCH v5 1/5] iio:temperature:mlx90632: Reduce number of equal calulcations Crt Mori
2020-08-13 7:51 ` [PATCH v5 2/5] iio:temperature:mlx90632: Add kerneldoc to the internal struct Crt Mori
2020-08-13 10:54 ` Andy Shevchenko
2020-08-13 7:51 ` [PATCH v5 3/5] iio:temperature:mlx90632: Convert polling while loop to do-while Crt Mori
2020-08-13 11:03 ` Andy Shevchenko [this message]
2020-08-13 11:13 ` Crt Mori
2020-08-13 11:24 ` Andy Shevchenko
2020-08-13 13:03 ` Crt Mori
2020-08-13 19:40 ` Andy Shevchenko
2020-08-14 7:32 ` Crt Mori
2020-08-14 9:31 ` Andy Shevchenko
2020-08-14 9:42 ` Crt Mori
2020-08-14 12:11 ` Andy Shevchenko
2020-08-13 7:51 ` [PATCH v5 4/5] iio:temperature:mlx90632: Adding extended calibration option Crt Mori
2020-08-13 11:06 ` Andy Shevchenko
2020-08-13 7:51 ` [PATCH v5 5/5] iio:temperature:mlx90632: Some stylefixing leftovers Crt Mori
2020-08-13 11:01 ` Andy Shevchenko
2020-08-13 13:11 ` Crt Mori
2020-08-13 19:41 ` Andy Shevchenko
2020-08-16 8:38 ` Jonathan Cameron
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