linux-kernel - Re: [PATCH] dmaengine: dw: clear LLP_[SD]_EN bits in last descriptor of a chain

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Message-ID: <20151222053847.GC12364@ubuntu>
Date:	Tue, 22 Dec 2015 11:08:47 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Mans Rullgard <mans@...sr.com>
Cc:	Viresh Kumar <vireshk@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dmaengine: dw: clear LLP_[SD]_EN bits in last descriptor
 of a chain

On 21-12-15, 19:10, Mans Rullgard wrote:
> The datasheet requires that the LLP_[SD]_EN bits be cleared whenever
> LLP.LOC is zero, i.e. in the last descriptor of a multi-block chain.
> Make the driver do this.
> 
> Signed-off-by: Mans Rullgard <mans@...sr.com>
> ---
>  drivers/dma/dw/core.c | 2 ++
>  1 file changed, 2 insertions(+)

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh
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