linux-kernel - Re: [PATCH v2 0/2] PM / devfreq: Add delayed timer for polling

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Message-ID: <a6fb8011-40b5-b88a-e667-eb4926f7d5a6@samsung.com>
Date:   Mon, 13 Jul 2020 16:24:46 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     lukasz.luba@....com, k.konieczny@...sung.com, krzk@...nel.org,
        kgene@...nel.org
Cc:     s.nawrocki@...sung.com, willy.mh.wolff.ml@...il.com,
        b.zolnierkie@...sung.com, chanwoo@...nel.org,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 0/2] PM / devfreq: Add delayed timer for polling

Dear all,

On 7/9/20 2:45 PM, Chanwoo Choi wrote:
> Add the delayed timer to devfreq framework in order to support
> the periodical polling mode without stop caused by CPU idle state.
> Some Non-CPU device must need to monitor the device status like
> utilization regardless of CPU state.
> 
> - patch1 explains the detailed reason why the delayed timer is required.
> - patch2 initializes that exynos5422-dmc device use delayed timer as default
> instead of deferrable timer.
> 
> Changes from v2:
> - Add reviewed-by tag
> - Fix typo on patch description
> - Remove 'RFC' work from patch title
> - Check whether 'df->governor' is NULL or not on timer_store()
> 
> Chanwoo Choi (2):
>   PM / devfreq: Add support delayed timer for polling mode
>   memory: samsung: exynos5422-dmc: Use delayed timer as default
> 
>  Documentation/ABI/testing/sysfs-class-devfreq | 12 +++
>  drivers/devfreq/devfreq.c                     | 86 ++++++++++++++++++-
>  drivers/memory/samsung/exynos5422-dmc.c       |  1 +
>  include/linux/devfreq.h                       |  9 ++
>  4 files changed, 107 insertions(+), 1 deletion(-)
> 

Applied them. Thanks.

-- 
Best Regards,
Chanwoo Choi
Samsung Electronics