From: Nicholas Mc Guire <hofrat@osadl.org>
Date: Mon, 16 Jan 2017 15:35:53 +0000 (+0100)
Subject: iio: health: max30100: use msleep() for long uncritical delays
X-Git-Tag: v4.11-rc1~116^2~272^2~24
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=18e2452a3c4e830bff9628ec0e25a814df491e30;p=linux.git

iio: health: max30100: use msleep() for long uncritical delays

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.

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>
Reviewed-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---

diff --git a/drivers/iio/health/max30100.c b/drivers/iio/health/max30100.c
index 90ab8a2d2846..9648c69ea1a2 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);
 }