From: sashiko-bot@kernel.org
To: "Nicolai Buchwitz" <nb@tipi-net.de>
Cc: linux-serial@vger.kernel.org
Subject: Re: [PATCH RESEND] serial: amba-pl011: end an RS485 transmission when TX is flushed
Date: Thu, 12 Nov 2026 08:17:26 +0000 [thread overview]
Message-ID: <sashiko-outbox-210685@kernel.org> (raw)
In-Reply-To: <20261112-devel-nbuchwitz-pl011-rs485-dma-flush-v1-1-6b811391651d@tipi-net.de>
> A TX flush during an RS485 DMA transmission only stops the DMA. Nothing
> ends the transmission afterwards, so RTS stays asserted and the bus
> stays driven until the next write.
>
> End it from the flush, unless the TX interrupt is still enabled and
> ends it itself.
>
> Fixes: 8d479237727c ("serial: amba-pl011: add RS485 support")
> Cc: stable@vger.kernel.org # 6.18.x
> Signed-off-by: Nicolai Buchwitz <nb@tipi-net.de>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261112-devel-nbuchwitz-pl011-rs485-dma-flush-v1-1-6b811391651d@tipi-net.de?part=1
prev parent reply other threads:[~2026-11-12 8:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-12 8:09 [PATCH RESEND] serial: amba-pl011: end an RS485 transmission when TX is flushed Nicolai Buchwitz
2026-11-12 8:17 ` sashiko-bot [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=sashiko-outbox-210685@kernel.org \
--to=sashiko-bot@kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=nb@tipi-net.de \
--cc=sashiko-reviews@lists.linux.dev \
/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.