linux-kernel - Re: [PATCH 0/2] Fix CPPI Warnings during tear down after ISOCH transfers

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Message-ID: <20140311105308.GT1976@intel.com>
Date:	Tue, 11 Mar 2014 16:23:08 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	George Cherian <george.cherian@...com>
Cc:	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	dmaengine@...r.kernel.org, gregkh@...uxfoundation.org,
	balbi@...com, dan.j.williams@...el.com, msmucr@...il.com
Subject: Re: [PATCH 0/2] Fix CPPI Warnings during tear down after  ISOCH
 transfers

On Thu, Feb 27, 2014 at 10:44:39AM +0530, George Cherian wrote:
> Warinings are seen after  ISOCH transfers, during channel tear down.
> This is mainly beacause we handle ISOCH differently as compared to 
> other transfers. 
> 
> Patch 1: make sure we do channel tear down only if channel is busy.
> 	 If not the tear down will never succeed.
> 
> Patch 2: ISOCH completions are done differently, so this might lead to 
> 	reprogram of dma channel on which already a teardown is done.
Applied, Thanks

-- 
~Vinod
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