From: Dmitry Osipenko <digetx@gmail.com>
To: Laxman Dewangan <ldewangan@nvidia.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-serial@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v1 0/2] NVIDIA Tegra serial driver improvements
Date: Sun, 12 Jan 2020 21:09:17 +0300 [thread overview]
Message-ID: <20200112180919.5194-1-digetx@gmail.com> (raw)
Hello,
This series is a complement to [1], which changed APB DMA driver's runtime
PM to make DMA clock enabled only during of actual transfer activity.
Unfortunately turned out that it wasn't enough because serial driver keeps
RX DMA active all the time in practice and that's what the first patch of
this series addresses. Secondly, I noticed that DMA synchronization could
be improved, it is also addressed now. Please review and apply, thanks in
advance!
Dmitry Osipenko (2):
tty: serial: tegra: Activate RX DMA transfer by request
tty: serial: tegra: Optimize DMA buffer synchronization
drivers/tty/serial/serial-tegra.c | 94 ++++++++++++++++++-------------
1 file changed, 55 insertions(+), 39 deletions(-)
--
2.24.0
next reply other threads:[~2020-01-12 18:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-12 18:09 Dmitry Osipenko [this message]
2020-01-12 18:09 ` [PATCH v1 1/2] tty: serial: tegra: Activate RX DMA transfer by request Dmitry Osipenko
2020-01-12 18:09 ` [PATCH v1 2/2] tty: serial: tegra: Optimize DMA buffer synchronization Dmitry Osipenko
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=20200112180919.5194-1-digetx@gmail.com \
--to=digetx@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=jonathanh@nvidia.com \
--cc=ldewangan@nvidia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=thierry.reding@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).