From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Ronald Wahl <rwahl@gmx.de>
Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
"Vignesh Raghavendra" <vigneshr@ti.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"Ronald Wahl" <ronald.wahl@raritan.com>
Subject: Re: [PATCH] serial: 8250: 8250_omap: Do not start RX DMA on THRI interrupt
Date: Tue, 31 Oct 2023 07:06:00 +0100 [thread overview]
Message-ID: <2023103150-esteemed-deputize-66a0@gregkh> (raw)
In-Reply-To: <20231030183951.15331-1-rwahl@gmx.de>
On Mon, Oct 30, 2023 at 07:39:51PM +0100, Ronald Wahl wrote:
> Starting RX DMA on THRI interrupt is too early because TX may not have
> finished yet.
>
> This change is inspired by commit 90b8596ac460 ("serial: 8250: Prevent
> starting up DMA Rx on THRI interrupt") and fixes DMA issues I had with
> an AM62 SoC that is using the 8250 OMAP variant.
>
> Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com>
> ---
> drivers/tty/serial/8250/8250_omap.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
What commit id does this fix?
thanks,
greg k-h
prev parent reply other threads:[~2023-10-31 6:12 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-30 18:39 [PATCH] serial: 8250: 8250_omap: Do not start RX DMA on THRI interrupt Ronald Wahl
2023-10-31 6:06 ` Greg Kroah-Hartman [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=2023103150-esteemed-deputize-66a0@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=ilpo.jarvinen@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=ronald.wahl@raritan.com \
--cc=rwahl@gmx.de \
--cc=vigneshr@ti.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