lkml.org 
[lkml]   [2017]   [Jan]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] iio: health: max30100: use msleep() for long uncritical delays
On Mon, Jan 16, 2017 at 7:35 AM, Nicholas Mc Guire <hofrat@osadl.org> wrote:
> ulseep_range() uses hrtimers and provides no advantage over msleep()
> for larger delays. Fix up the 35ms delays here to use msleep() and
> reduce the load on the hrtimer subsystem.

Ok makes sense. Also long as it guaranteed to be at least 35 milliseconds.

Reviewed-by: Matt Ranostay <matt.ranostay@konsulko.com>

>
> Fixes: commit 4d33615df58b ("iio: light: add MAX30100 oximeter driver support")
> Link: http://lkml.org/lkml/2017/1/11/377
> Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
> ---
> Problem located with coccinelle script
>
> Patch was compile tested with: x86_64_defconfig + CONFIG_IIO=m +
> CONFIG_MAX30100=m
>
> Patch is aginast 4.10-rc3 (localversion-next is next-20170116)
>
> drivers/iio/health/max30100.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iio/health/max30100.c b/drivers/iio/health/max30100.c
> index 90ab8a2d..9648c69 100644
> --- a/drivers/iio/health/max30100.c
> +++ b/drivers/iio/health/max30100.c
> @@ -378,7 +378,7 @@ static int max30100_get_temp(struct max30100_data *data, int *val)
> if (ret)
> return ret;
>
> - usleep_range(35000, 50000);
> + msleep(35);
>
> return max30100_read_temp(data, val);
> }
> --
> 2.1.4
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-iio" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html

\
 
 \ /
  Last update: 2017-01-17 03:01    [W:0.052 / U:0.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site