From: linus.ml.walleij@gmail.com (Linus Walleij)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/3] dmaengine: add possibility for cyclic transfers
Date: Mon, 16 Aug 2010 14:22:16 +0200 [thread overview]
Message-ID: <AANLkTi=3OYmuPUnBGimGTiGUbh32KDPyoXubvXJZAR99@mail.gmail.com> (raw)
In-Reply-To: <1281956870-12463-2-git-send-email-s.hauer@pengutronix.de>
2010/8/16 Sascha Hauer <s.hauer@pengutronix.de>:
> Cyclic transfers are useful for audio where a single buffer divided
> in periods has to be transfered endlessly until stopped. After being
> prepared the transfer is started using the dma_async_descriptor->tx_submit
> function. dma_async_descriptor->callback is called after each period.
> The transfer is stopped using the DMA_TERMINATE_ALL callback.
> While being used for cyclic transfers the channel cannot be used
> for other transfer types.
>
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Looks good to me.
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Yours,
Linus Walleij
next prev parent reply other threads:[~2010-08-16 12:22 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-16 11:07 [RFC] dmaengine: assorted patches and Freescale SDMA support Sascha Hauer
2010-08-16 11:07 ` [PATCH 1/3] dmaengine: add possibility for cyclic transfers Sascha Hauer
2010-08-16 11:56 ` Lothar Waßmann
2010-08-16 12:27 ` Linus Walleij
2010-08-16 12:32 ` Sascha Hauer
2010-08-16 12:22 ` Linus Walleij [this message]
2010-09-20 13:01 ` Sascha Hauer
2010-09-23 19:42 ` Dan Williams
2010-09-24 7:25 ` Sascha Hauer
2010-08-16 11:07 ` [PATCH 2/3] dmaengine: add wrapper functions for dmaengine Sascha Hauer
2010-08-23 7:17 ` Sascha Hauer
2010-09-23 19:53 ` Dan Williams
2010-09-24 7:25 ` Sascha Hauer
2010-09-24 15:45 ` Dan Williams
2010-08-16 11:07 ` [PATCH 3/3] dmaengine: Add Freescale i.MX SDMA support Sascha Hauer
2010-08-16 12:21 ` Linus Walleij
2010-08-16 14:15 ` Sascha Hauer
2010-08-17 4:36 ` Baruch Siach
2010-08-17 6:47 ` Sascha Hauer
2010-08-18 3:49 ` Alexei Babich
2010-08-18 4:41 ` Baruch Siach
2010-08-18 11:17 ` Philippe Rétornaz
2010-08-24 7:10 ` [PATCH 3/3 v3] " Sascha Hauer
2010-09-02 14:06 ` [PATCH 3/3] " Russell King - ARM Linux
2010-08-23 12:57 ` [PATCH 3/3 v2] " Sascha Hauer
2010-08-23 17:30 ` Linus Walleij
2010-08-24 6:58 ` Sascha Hauer
2010-08-23 17:48 ` Uwe Kleine-König
2010-08-28 15:18 ` Linus Walleij
2010-08-28 15:27 ` Marek Vasut
2010-08-28 16:18 ` Sascha Hauer
2010-08-28 16:30 ` Marek Vasut
2010-08-28 17:20 ` Sascha Hauer
2010-09-02 11:20 ` Russell King - ARM Linux
2010-08-29 12:35 ` Linus Walleij
2010-08-30 12:55 ` Sascha Hauer
2010-08-24 7:58 ` Lothar Waßmann
2010-08-24 15:01 ` Linus Walleij
2010-08-27 12:22 ` [PATCH 3/3 v3] " Sascha Hauer
2010-08-29 21:46 ` Marc Reilly
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='AANLkTi=3OYmuPUnBGimGTiGUbh32KDPyoXubvXJZAR99@mail.gmail.com' \
--to=linus.ml.walleij@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
/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).