From: Valentin Caron <valentin.caron@foss.st.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Amelie Delaunay <amelie.delaunay@foss.st.com>,
<linux-serial@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
Valentin Caron <valentin.caron@foss.st.com>
Subject: [PATCH v2 0/6] serial: stm32: improve DMA pause and resume
Date: Tue, 8 Aug 2023 18:19:00 +0200 [thread overview]
Message-ID: <20230808161906.178996-1-valentin.caron@foss.st.com> (raw)
This series improves DMA management in stm32-usart driver.
It is not recommended to switch DMAT and DMAR bits when a DMA transfer
is in progress. This is going to be replaced by dmaengine_pause or
dmaengine_resume.
stm32_usart_rx_dma_pause, stm32_usart_rx_dma_resume, stm32_usart_tx_dma_pause
and stm32_usart_tx_dma_resume functions, are all redirected to a single function,
called "stm32_usart_dma_pause_resume", that has been created to simplify dma
pause/resume.
Since v1:
- Add my Signed-off in Amelie's patch.
Amelie Delaunay (1):
serial: stm32: synchronize RX DMA channel in shutdown
Valentin Caron (5):
serial: stm32: avoid clearing DMAT bit during transfer
serial: stm32: use DMAT as a configuration bit
serial: stm32: modify parameter and rename stm32_usart_rx_dma_enabled
serial: stm32: group dma pause/resume error handling into single
function
serial: stm32: replace access to DMAR bit by dmaengine_pause/resume
drivers/tty/serial/stm32-usart.c | 307 ++++++++++++++++++-------------
drivers/tty/serial/stm32-usart.h | 1 +
2 files changed, 185 insertions(+), 123 deletions(-)
--
2.25.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2023-08-08 17:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-08 16:19 Valentin Caron [this message]
2023-08-08 16:19 ` [PATCH v2 1/6] serial: stm32: avoid clearing DMAT bit during transfer Valentin Caron
2023-08-08 16:19 ` [PATCH v2 2/6] serial: stm32: use DMAT as a configuration bit Valentin Caron
2023-08-08 16:19 ` [PATCH v2 3/6] serial: stm32: modify parameter and rename stm32_usart_rx_dma_enabled Valentin Caron
2023-08-08 16:19 ` [PATCH v2 4/6] serial: stm32: group dma pause/resume error handling into single function Valentin Caron
2023-08-08 16:19 ` [PATCH v2 5/6] serial: stm32: replace access to DMAR bit by dmaengine_pause/resume Valentin Caron
2023-08-08 16:19 ` [PATCH v2 6/6] serial: stm32: synchronize RX DMA channel in shutdown Valentin Caron
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=20230808161906.178996-1-valentin.caron@foss.st.com \
--to=valentin.caron@foss.st.com \
--cc=alexandre.torgue@foss.st.com \
--cc=amelie.delaunay@foss.st.com \
--cc=gregkh@linuxfoundation.org \
--cc=jirislaby@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=linux-stm32@st-md-mailman.stormreply.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).