Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1314241

Re: [PATCH 2/8] rtc: max77686: Use usleep_range() instead of msleep()

From Javier Martinez Canillas <javier@osg.samsung.com>
Newsgroups linux.kernel
Subject Re: [PATCH 2/8] rtc: max77686: Use usleep_range() instead of msleep()
Date 2016-01-21 16:00 +0100
Message-ID <qToSl-6CC-11@gated-at.bofh.it> (permalink)
References <qT4Ah-1fm-7@gated-at.bofh.it> <qT4Ah-1fm-5@gated-at.bofh.it> <qTbs7-5IQ-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


Hello Krzysztof,

On 01/20/2016 09:37 PM, Krzysztof Kozlowski wrote:
> On 21.01.2016 02:14, Javier Martinez Canillas wrote:
>> Documentation/timers/timers-howto.txt suggest to use usleep_range()
>> instead of msleep() for small msec (1ms - 20ms) since msleep() will
>> often sleep for 20ms for any value in that range.
>>
>> This is fine in this case since 16ms is the _minimum_ delay required
>> by max77686 for an RTC update but by using usleep_range() instead of
>> msleep(), the driver can support other RTC IP blocks with a shorter
>> minium delay (i.e: in the range of usecs insted of msecs).
>
> s/minium/minimum/
> s/insted/instead/
>

Fixed.

>>
>> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
>> ---
>>
>>   drivers/rtc/rtc-max77686.c | 5 +++--
>>   1 file changed, 3 insertions(+), 2 deletions(-)
>
> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
>

Thanks a lot for your review.
  
> Best regards,
> Krzysztof
>

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America

Back to linux.kernel | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

[PATCH 2/8] rtc: max77686: Use usleep_range() instead of msleep() Javier Martinez Canillas <javier@osg.samsung.com> - 2016-01-20 18:20 +0100
  Re: [PATCH 2/8] rtc: max77686: Use usleep_range() instead of msleep() Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-01-21 01:40 +0100
    Re: [PATCH 2/8] rtc: max77686: Use usleep_range() instead of msleep() Javier Martinez Canillas <javier@osg.samsung.com> - 2016-01-21 16:00 +0100

csiph-web