From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:47024 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752460AbeDORii (ORCPT ); Sun, 15 Apr 2018 13:38:38 -0400 Date: Sun, 15 Apr 2018 18:38:34 +0100 From: Jonathan Cameron To: Matt Ranostay Cc: Nicholas Mc Guire , linux-iio@vger.kernel.org, Nicholas Mc Guire Subject: Re: [PATCH] iio: chemical: atlas-ph-sensor: use msleep() for long uncritical delays Message-ID: <20180415183834.770a4963@archlinux> In-Reply-To: References: <20180410061822.12750-1-matt.ranostay@konsulko.com> <20180412012559.GC17901@osadl.at> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org On Wed, 11 Apr 2018 20:52:49 -0700 Matt Ranostay wrote: > On Wed, Apr 11, 2018 at 6:25 PM, Nicholas Mc Guire wrote: > > On Mon, Apr 09, 2018 at 11:18:22PM -0700, Matt Ranostay wrote: > >> usleep_range() uses hrtimers and provides no advantage over msleep() > >> for larger delays. > >> > > > > As the ATLAS_*_INT_TIME_IN_MS delays here are used exclusively for the > > usleep_ranges in the sustepnd case I guess that transformation is fine. > > Yeah only reason I submitted it. Probably a bit pedantic I'll admit :) > Applied to the togreg branch of iio.git and pushed out as testing for the autobuilders to play tih it. Thanks, Jonathan > > > >> Cc: Nicholas Mc Guire > >> Link: http://lkml.org/lkml/2017/1/11/377 > >> Signed-off-by: Matt Ranostay > > Reviewed-by: Nicholas Mc Guire > > > >> --- > >> drivers/iio/chemical/atlas-ph-sensor.c | 14 +++++++------- > >> 1 file changed, 7 insertions(+), 7 deletions(-) > >> > >> diff --git a/drivers/iio/chemical/atlas-ph-sensor.c b/drivers/iio/chemical/atlas-ph-sensor.c > >> index abfc4bbc4cfc..a406ad31b096 100644 > >> --- a/drivers/iio/chemical/atlas-ph-sensor.c > >> +++ b/drivers/iio/chemical/atlas-ph-sensor.c > >> @@ -61,9 +61,9 @@ > >> #define ATLAS_REG_ORP_CALIB_STATUS 0x0d > >> #define ATLAS_REG_ORP_DATA 0x0e > >> > >> -#define ATLAS_PH_INT_TIME_IN_US 450000 > >> -#define ATLAS_EC_INT_TIME_IN_US 650000 > >> -#define ATLAS_ORP_INT_TIME_IN_US 450000 > >> +#define ATLAS_PH_INT_TIME_IN_MS 450 > >> +#define ATLAS_EC_INT_TIME_IN_MS 650 > >> +#define ATLAS_ORP_INT_TIME_IN_MS 450 > >> > >> enum { > >> ATLAS_PH_SM, > >> @@ -270,21 +270,21 @@ static struct atlas_device atlas_devices[] = { > >> .num_channels = 3, > >> .data_reg = ATLAS_REG_PH_DATA, > >> .calibration = &atlas_check_ph_calibration, > >> - .delay = ATLAS_PH_INT_TIME_IN_US, > >> + .delay = ATLAS_PH_INT_TIME_IN_MS, > >> }, > >> [ATLAS_EC_SM] = { > >> .channels = atlas_ec_channels, > >> .num_channels = 5, > >> .data_reg = ATLAS_REG_EC_DATA, > >> .calibration = &atlas_check_ec_calibration, > >> - .delay = ATLAS_EC_INT_TIME_IN_US, > >> + .delay = ATLAS_EC_INT_TIME_IN_MS, > >> }, > >> [ATLAS_ORP_SM] = { > >> .channels = atlas_orp_channels, > >> .num_channels = 2, > >> .data_reg = ATLAS_REG_ORP_DATA, > >> .calibration = &atlas_check_orp_calibration, > >> - .delay = ATLAS_ORP_INT_TIME_IN_US, > >> + .delay = ATLAS_ORP_INT_TIME_IN_MS, > >> }, > >> }; > >> > >> @@ -393,7 +393,7 @@ static int atlas_read_measurement(struct atlas_data *data, int reg, __be32 *val) > >> } > >> > >> if (suspended) > >> - usleep_range(data->chip->delay, data->chip->delay + 100000); > >> + msleep(data->chip->delay); > >> > >> ret = regmap_bulk_read(data->regmap, reg, (u8 *) val, sizeof(*val)); > >> > >> -- > >> 2.14.1 > >>