From: Wolfram Sang <wsa@kernel.org>
To: Samuel Holland <samuel@sholland.org>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>,
linux-i2c@vger.kernel.org, Maxime Ripard <mripard@kernel.org>,
Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@siol.net>,
Ondrej Jirman <megous@megous.com>,
linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: Re: [PATCH] i2c: mv64xxx: Add runtime PM support
Date: Mon, 1 Feb 2021 23:07:14 +0100 [thread overview]
Message-ID: <20210201220714.GF24315@kunai> (raw)
In-Reply-To: <20210103105146.33835-1-samuel@sholland.org>
[-- Attachment #1: Type: text/plain, Size: 726 bytes --]
On Sun, Jan 03, 2021 at 04:51:46AM -0600, Samuel Holland wrote:
> To save power, gate the clock when the bus is inactive, during system
> sleep, and during shutdown. On some platforms, specifically Allwinner
> A13/A20, gating the clock implicitly resets the module as well. Since
> the module already needs to be reset after some suspend/resume cycles,
> it is simple enough to reset it during every runtime suspend/resume.
>
> Because the bus may be used by wakeup source IRQ threads, it needs to
> be functional as soon as IRQs are enabled. Thus, its system PM hooks
> need to run in the noirq phase.
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>
Applied to for-next with Gregory's ack, thanks!
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
prev parent reply other threads:[~2021-02-01 22:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-03 10:51 [PATCH] i2c: mv64xxx: Add runtime PM support Samuel Holland
2021-01-28 9:22 ` Wolfram Sang
2021-01-28 15:47 ` Ondřej Jirman
2021-02-01 22:07 ` Wolfram Sang [this message]
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=20210201220714.GF24315@kunai \
--to=wsa@kernel.org \
--cc=gregory.clement@bootlin.com \
--cc=jernej.skrabec@siol.net \
--cc=linux-i2c@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sunxi@googlegroups.com \
--cc=megous@megous.com \
--cc=mripard@kernel.org \
--cc=samuel@sholland.org \
--cc=wens@csie.org \
/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.