From: Qingpeng Yang <qingpeng.yang@amlogic.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
xianwei.zhao@amlogic.com
Cc: Ulf Hansson <ulfh@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] pmdomain: amlogic: Keep Amlogic A9 ETH domain always on
Date: Tue, 22 Sep 2026 16:44:14 +0800 [thread overview]
Message-ID: <5cae3485-47cf-47eb-9757-de765b485961@amlogic.com> (raw)
In-Reply-To: <CAFBinCCgvMbM5zf8OXFhjNRWjDMTjAVPu_BBJf1GRKp7JPqk=A@mail.gmail.com>
Hi Martin,
Thanks for your review.
On 9/14/2026 6:40 PM, Martin Blumenstingl wrote:
>
> On Mon, Sep 14, 2026 at 10:56 AM Xianwei Zhao via B4 Relay
> <devnull+xianwei.zhao.amlogic.com@kernel.org> wrote:
>>
>> From: Qingpeng Yang <qingpeng.yang@amlogic.com>
>>
>> Mark the A9 ethernet power domain as always-on since it is required
>> for ethernet online wakeup and must not be powered down.
> Is "online wakeup" a wake up from suspend?
> If so: is the Ethernet controller listed with the "wakeup-source" flag
> in .dts{,i}?
> I'm wondering if the pmdomain and/or power (wakeup) frameworks in
> Linux have other ways of managing this case (e.g. only keeping the
> power domain active if needed).
>
Yes, "online wakeup" here means wakeup from system suspend.
The Ethernet controller is not currently listed with the "wakeup-source"
flag in the .dtsi.
After internal discussion, we have decided not to support Ethernet
wakeup for now. So we will drop the always-on change for the Ethernet
power domain in this series.
>
> Best regards,
> Martin
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prev parent reply other threads:[~2026-09-22 8:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-14 8:56 Xianwei Zhao via B4 Relay
2026-09-14 9:08 ` sashiko-bot
2026-09-14 10:40 ` Martin Blumenstingl
2026-09-15 15:47 ` Ulf Hansson
2026-09-22 9:04 ` Qingpeng Yang
2026-09-22 8:44 ` Qingpeng Yang [this message]
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