From: Kalle Valo <kvalo@codeaurora.org>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: yhchuang@realtek.com, briannorris@chromium.org,
Kai-Heng Feng <kai.heng.feng@canonical.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
linux-wireless@vger.kernel.org (open list:REALTEK WIRELESS
DRIVER (rtw88)),
netdev@vger.kernel.org (open list:NETWORKING DRIVERS),
linux-kernel@vger.kernel.org (open list)
Subject: Re: [PATCH v2] rtw88: pci: Power cycle device during shutdown
Date: Thu, 1 Oct 2020 13:28:56 +0000 (UTC) [thread overview]
Message-ID: <20201001132856.57A09C433C8@smtp.codeaurora.org> (raw)
In-Reply-To: <20200928165508.20775-1-kai.heng.feng@canonical.com>
Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
> There are reports that 8822CE fails to work rtw88 with "failed to read DBI
> register" error. Also I have a system with 8723DE which freezes the whole
> system when the rtw88 is probing the device.
>
> According to [1], platform firmware may not properly power manage the
> device during shutdown. I did some expirements and putting the device to
> D3 can workaround the issue.
>
> So let's power cycle the device by putting the device to D3 at shutdown
> to prevent the issue from happening.
>
> [1] https://bugzilla.kernel.org/show_bug.cgi?id=206411#c9
>
> BugLink: https://bugs.launchpad.net/bugs/1872984
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Patch applied to wireless-drivers-next.git, thanks.
44492e70adc8 rtw88: pci: Power cycle device during shutdown
--
https://patchwork.kernel.org/patch/11804271/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
prev parent reply other threads:[~2020-10-01 13:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-24 9:32 [PATCH] rtw88: pci: Power cycle device during shutdown Kai-Heng Feng
2020-08-26 0:27 ` Brian Norris
2020-09-09 14:00 ` Kai-Heng Feng
2020-09-28 16:55 ` [PATCH v2] " Kai-Heng Feng
2020-10-01 13:28 ` Kalle Valo [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=20201001132856.57A09C433C8@smtp.codeaurora.org \
--to=kvalo@codeaurora.org \
--cc=briannorris@chromium.org \
--cc=davem@davemloft.net \
--cc=kai.heng.feng@canonical.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-wireless@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=yhchuang@realtek.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.