From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Vinod Koul <vinod.koul@intel.com>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
Peter Hurley <peter@hurleysoftware.com>,
linux-serial@vger.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v2 1/1] dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC
Date: Tue, 10 May 2016 20:43:34 +0300 [thread overview]
Message-ID: <1462902214-64706-1-git-send-email-andriy.shevchenko@linux.intel.com> (raw)
When check for capabilities recognize slave support by either DMA_SLAVE or
DMA_CYCLIC bit set. If we don't do that the user can't get a normally worked
DMA support for engines that doesn't have one of the mentioned bits set.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
In v2:
- fix typo in the commit message
- send patch separately
drivers/dma/dmaengine.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 5ff79a0..59eb4fa 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -482,8 +482,8 @@ int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
device = chan->device;
/* check if the channel supports slave transactions */
- if ((!test_bit(DMA_SLAVE, device->cap_mask.bits)) ||
- (!test_bit(DMA_CYCLIC, device->cap_mask.bits)))
+ if (!(test_bit(DMA_SLAVE, device->cap_mask.bits) ||
+ test_bit(DMA_CYCLIC, device->cap_mask.bits)))
return -ENXIO;
/*
--
2.8.1
next reply other threads:[~2016-05-10 17:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-10 17:43 Andy Shevchenko [this message]
2016-05-12 5:45 ` [PATCH v2 1/1] dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC Vinod Koul
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=1462902214-64706-1-git-send-email-andriy.shevchenko@linux.intel.com \
--to=andriy.shevchenko@linux.intel.com \
--cc=dmaengine@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=peter@hurleysoftware.com \
--cc=vinod.koul@intel.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 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.