From: vinod.koul@intel.com (Vinod Koul)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2] dmaengine: pxa_dma: fix cyclic transfers
Date: Thu, 3 Mar 2016 21:07:02 +0530 [thread overview]
Message-ID: <20160303153702.GO11154@localhost> (raw)
In-Reply-To: <1455659642-7746-1-git-send-email-robert.jarzmik@free.fr>
On Tue, Feb 16, 2016 at 10:54:02PM +0100, Robert Jarzmik wrote:
> While testing audio with pxa2xx-ac97, underrun were happening while the
> user application was correctly feeding the music. Debug proved that the
> cyclic transfer is not cyclic, ie. the last descriptor did not loop on
> the first.
>
> Another issue is that the descriptor length was always set to 8192,
> because of an trivial operator issue.
>
> This was tested on a pxa27x platform.
Applied, thanks
--
~Vinod
WARNING: multiple messages have this Message-ID (diff)
From: Vinod Koul <vinod.koul@intel.com>
To: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] dmaengine: pxa_dma: fix cyclic transfers
Date: Thu, 3 Mar 2016 21:07:02 +0530 [thread overview]
Message-ID: <20160303153702.GO11154@localhost> (raw)
In-Reply-To: <1455659642-7746-1-git-send-email-robert.jarzmik@free.fr>
On Tue, Feb 16, 2016 at 10:54:02PM +0100, Robert Jarzmik wrote:
> While testing audio with pxa2xx-ac97, underrun were happening while the
> user application was correctly feeding the music. Debug proved that the
> cyclic transfer is not cyclic, ie. the last descriptor did not loop on
> the first.
>
> Another issue is that the descriptor length was always set to 8192,
> because of an trivial operator issue.
>
> This was tested on a pxa27x platform.
Applied, thanks
--
~Vinod
next prev parent reply other threads:[~2016-03-03 15:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 21:54 [PATCH v2] dmaengine: pxa_dma: fix cyclic transfers Robert Jarzmik
2016-02-16 21:54 ` Robert Jarzmik
2016-02-26 22:22 ` Robert Jarzmik
2016-02-26 22:22 ` Robert Jarzmik
2016-03-03 15:37 ` Vinod Koul [this message]
2016-03-03 15:37 ` Vinod Koul
2016-03-03 17:19 ` Robert Jarzmik
2016-03-03 17:19 ` Robert Jarzmik
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