All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kevin Hilman <khilman@baylibre.com>
To: "shunzhou.jiang@amlogic.com" <shunzhou.jiang@amlogic.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	linux-amlogic <linux-amlogic@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Cc: Neil Armstrong <narmstrong@baylibre.com>,
	jbrunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	"jianxin.pan" <jianxin.pan@amlogic.com>
Subject: Re: Re: [PATCH 2/2] soc: s4: Add support for power domains controller
Date: Fri, 11 Feb 2022 10:52:41 -0800	[thread overview]
Message-ID: <7hwni1me12.fsf@baylibre.com> (raw)
In-Reply-To: <2022021117375354230910@amlogic.com>

Hi Shunzhou,

"shunzhou.jiang@amlogic.com" <shunzhou.jiang@amlogic.com> writes:

> Hi Kevin:
> Thanks your kindly reply

You're welcome.  For future reference, please avoid top-posting.  See:
https://www.kernel.org/doc/html/latest/process/2.Process.html?highlight=top-posting#mailing-lists

> For those domains,  default is active, we hope not close when in use or not in use, in our case, 
> only runtime PM (include suspend) control this, so set always on flag to avoid domain shutdown,

my question remains: why do want to keep these powered on even when they
are not in use?

The goal of the power-domain framework + runtime PM is to be able to
save power by turnin off power domains when they are not in use.

> if you also have concern, we can control this not in kernel, but this not our expect.

My strong preference is that this is controlled by the kernel.

Kevin

_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

WARNING: multiple messages have this Message-ID (diff)
From: Kevin Hilman <khilman@baylibre.com>
To: "shunzhou.jiang@amlogic.com" <shunzhou.jiang@amlogic.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	linux-amlogic <linux-amlogic@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Cc: Neil Armstrong <narmstrong@baylibre.com>,
	jbrunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	"jianxin.pan" <jianxin.pan@amlogic.com>
Subject: Re: Re: [PATCH 2/2] soc: s4: Add support for power domains controller
Date: Fri, 11 Feb 2022 10:52:41 -0800	[thread overview]
Message-ID: <7hwni1me12.fsf@baylibre.com> (raw)
In-Reply-To: <2022021117375354230910@amlogic.com>

Hi Shunzhou,

"shunzhou.jiang@amlogic.com" <shunzhou.jiang@amlogic.com> writes:

> Hi Kevin:
> Thanks your kindly reply

You're welcome.  For future reference, please avoid top-posting.  See:
https://www.kernel.org/doc/html/latest/process/2.Process.html?highlight=top-posting#mailing-lists

> For those domains,  default is active, we hope not close when in use or not in use, in our case, 
> only runtime PM (include suspend) control this, so set always on flag to avoid domain shutdown,

my question remains: why do want to keep these powered on even when they
are not in use?

The goal of the power-domain framework + runtime PM is to be able to
save power by turnin off power domains when they are not in use.

> if you also have concern, we can control this not in kernel, but this not our expect.

My strong preference is that this is controlled by the kernel.

Kevin

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Kevin Hilman <khilman@baylibre.com>
To: "shunzhou.jiang@amlogic.com" <shunzhou.jiang@amlogic.com>,
	linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
	linux-amlogic <linux-amlogic@lists.infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>
Cc: Neil Armstrong <narmstrong@baylibre.com>,
	jbrunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	"jianxin.pan" <jianxin.pan@amlogic.com>
Subject: Re: Re: [PATCH 2/2] soc: s4: Add support for power domains controller
Date: Fri, 11 Feb 2022 10:52:41 -0800	[thread overview]
Message-ID: <7hwni1me12.fsf@baylibre.com> (raw)
In-Reply-To: <2022021117375354230910@amlogic.com>

Hi Shunzhou,

"shunzhou.jiang@amlogic.com" <shunzhou.jiang@amlogic.com> writes:

> Hi Kevin:
> Thanks your kindly reply

You're welcome.  For future reference, please avoid top-posting.  See:
https://www.kernel.org/doc/html/latest/process/2.Process.html?highlight=top-posting#mailing-lists

> For those domains,  default is active, we hope not close when in use or not in use, in our case, 
> only runtime PM (include suspend) control this, so set always on flag to avoid domain shutdown,

my question remains: why do want to keep these powered on even when they
are not in use?

The goal of the power-domain framework + runtime PM is to be able to
save power by turnin off power domains when they are not in use.

> if you also have concern, we can control this not in kernel, but this not our expect.

My strong preference is that this is controlled by the kernel.

Kevin

  parent reply	other threads:[~2022-02-11 18:52 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-26  6:10 [PATCH 0/2] Power: meson-s4: add s4 power domain driver Shunzhou Jiang
2022-01-26  6:10 ` Shunzhou Jiang
2022-01-26  6:10 ` Shunzhou Jiang
2022-01-26  6:10 ` [PATCH 1/2] dt-bindings: power: add Amlogic s4 power domains bindings Shunzhou Jiang
2022-01-26  6:10   ` Shunzhou Jiang
2022-01-26  6:10   ` Shunzhou Jiang
2022-01-26  6:10 ` [PATCH 2/2] soc: s4: Add support for power domains controller Shunzhou Jiang
2022-01-26  6:10   ` Shunzhou Jiang
2022-01-26  6:10   ` Shunzhou Jiang
2022-02-01 19:52   ` Kevin Hilman
2022-02-01 19:52     ` Kevin Hilman
2022-02-01 19:52     ` Kevin Hilman
     [not found]     ` <202202091001287547451@amlogic.com>
2022-02-09 20:30       ` Kevin Hilman
2022-02-09 20:30         ` Kevin Hilman
2022-02-09 20:30         ` Kevin Hilman
     [not found]         ` <2022021117375354230910@amlogic.com>
2022-02-11 18:52           ` Kevin Hilman [this message]
2022-02-11 18:52             ` Kevin Hilman
2022-02-11 18:52             ` Kevin Hilman
     [not found]             ` <2022021510112070486315@amlogic.com>
2022-02-19  0:32               ` Kevin Hilman
2022-02-19  0:32                 ` Kevin Hilman
2022-02-19  0:32                 ` Kevin Hilman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=7hwni1me12.fsf@baylibre.com \
    --to=khilman@baylibre.com \
    --cc=jbrunet@baylibre.com \
    --cc=jianxin.pan@amlogic.com \
    --cc=linux-amlogic@lists.infradead.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=martin.blumenstingl@googlemail.com \
    --cc=narmstrong@baylibre.com \
    --cc=shunzhou.jiang@amlogic.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.