From: Lee Jones <lee@kernel.org>
To: "Otto Pflüger" <otto.pflueger@abscue.de>
Cc: Orson Zhai <orsonzhai@gmail.com>,
Baolin Wang <baolin.wang@linux.alibaba.com>,
Chunyan Zhang <zhang.lyra@gmail.com>,
Mark Brown <broonie@kernel.org>,
Sebastian Reichel <sre@kernel.org>, Rob Herring <robh@kernel.org>,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH v2 1/3] mfd: sprd-sc27xx: Integrate power off and reboot support
Date: Wed, 26 Nov 2025 15:36:19 +0000 [thread overview]
Message-ID: <20251126153619.GH3070764@google.com> (raw)
In-Reply-To: <aSNFk7tZqcgBqYsI@abscue.de>
On Sun, 23 Nov 2025, Otto Pflüger wrote:
> On Thu, Nov 20, 2025 at 03:30:24PM +0000, Lee Jones wrote:
> > On Mon, 10 Nov 2025, Otto Pflüger wrote:
> >
> > > The SC27xx PMICs allow restarting and powering off the device. Since
> > > this functionality is rather simple and not configurable in any way,
> > > make it part of the main PMIC driver.
> >
> > This sounds like more of a drivers/power thing.
>
> This was originally in drivers/power, but according to [1], it should
> not be a separate device tree node. Using a separate driver without a
> separate device tree node would still involve some code here that
> instantiates a platform device and selects the right platform data for
> it.
>
> Registering the poweroff handler directly seemed less complex, and I
> assumed it was okay since some other MFD drivers (e.g. rk8xx) also
> implement the same functionality without a separate power driver.
>
> Is it a good idea to use devm_mfd_add_devices here instead?
>
> [1]: https://lore.kernel.org/all/20251002025344.GA2958334-robh@kernel.org/
Well that is quite the predicament.
Let me catch-up with Rob out-of-band and see if we can come up with a
solution.
--
Lee Jones [李琼斯]
next prev parent reply other threads:[~2025-11-26 15:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-10 19:08 [PATCH v2 0/3] mfd: sprd-sc27xx: Move poweroff/reboot support to the parent MFD driver Otto Pflüger
2025-11-10 19:08 ` [PATCH v2 1/3] mfd: sprd-sc27xx: Integrate power off and reboot support Otto Pflüger
2025-11-20 15:30 ` Lee Jones
2025-11-23 17:34 ` Otto Pflüger
2025-11-26 15:36 ` Lee Jones [this message]
2025-11-10 19:08 ` [PATCH v2 2/3] spi: sprd-adi: Remove code for storing the reboot mode Otto Pflüger
2025-11-10 19:09 ` [PATCH v2 3/3] power: reset: sc27xx: Drop unused driver Otto Pflüger
2025-11-19 6:33 ` [PATCH v2 0/3] mfd: sprd-sc27xx: Move poweroff/reboot support to the parent MFD driver Baolin Wang
2025-11-21 2:29 ` Cixi Geng
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=20251126153619.GH3070764@google.com \
--to=lee@kernel.org \
--cc=baolin.wang@linux.alibaba.com \
--cc=broonie@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux-spi@vger.kernel.org \
--cc=orsonzhai@gmail.com \
--cc=otto.pflueger@abscue.de \
--cc=robh@kernel.org \
--cc=sre@kernel.org \
--cc=zhang.lyra@gmail.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).