From: Anton Eliasson <anton.eliasson@axis.com>
To: Andi Shyti <andi.shyti@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-samsung-soc@vger.kernel.org>,
<linux-serial@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<kernel@axis.com>
Subject: Re: [PATCH] tty: serial: samsung: Set missing PM ops for hibernation support
Date: Mon, 7 Aug 2023 11:57:04 +0200 [thread overview]
Message-ID: <1dbc24c4-b057-0e71-432a-a7d0ce2df2dc@axis.com> (raw)
In-Reply-To: <20230805213824.ol7sr3b52rwrsfs6@intel.intel>
On 05/08/2023 23.38, Andi Shyti wrote:
> Hi Anton,
>
> On Thu, Aug 03, 2023 at 01:26:42PM +0200, Anton Eliasson wrote:
>> At least freeze, restore and thaw need to be set in order for the driver
>> to support system hibernation. The existing suspend/resume functions can
>> be reused since those functions don't touch the device's power state or
>> wakeup capability. Use the helper macros SET_SYSTEM_SLEEP_PM_OPS and
>> SET_NOIRQ_SYSTEM_SLEEP_PM_OPS for symmetry with similar drivers.
> and why do we need hibernation in this device?
>
> Andi
Hi!
I wanted to test whether hibernation is possible on our SoC, even though
it is not a common feature on embedded ARM systems. This is the only
mainline driver that I found that needed modification, for my
proof-of-concept anyway, and I couldn't see any harm in the change.
Anton Eliasson
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-08-07 9:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-03 11:26 [PATCH] tty: serial: samsung: Set missing PM ops for hibernation support Anton Eliasson
2023-08-05 21:38 ` Andi Shyti
2023-08-07 9:57 ` Anton Eliasson [this message]
2023-08-07 21:34 ` Andi Shyti
2023-08-09 13:57 ` Anton Eliasson
2023-08-07 13:50 ` Krzysztof Kozlowski
2023-08-09 13:19 ` Anton Eliasson
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=1dbc24c4-b057-0e71-432a-a7d0ce2df2dc@axis.com \
--to=anton.eliasson@axis.com \
--cc=alim.akhtar@samsung.com \
--cc=andi.shyti@kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=jirislaby@kernel.org \
--cc=kernel@axis.com \
--cc=krzysztof.kozlowski@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-samsung-soc@vger.kernel.org \
--cc=linux-serial@vger.kernel.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 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).