Re: [PATCH] rcar-dmac: fixup descriptor pointer for descriptor mode

From	Vinod Koul <vinod.koul@intel.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH] rcar-dmac: fixup descriptor pointer for descriptor mode
Date	2017-05-30 08:20 +0200
Message-ID	<tMIFA-3sh-13@gated-at.bofh.it> (permalink)
References	<tMIFA-3sh-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Tue, May 23, 2017 at 07:08:43AM +0000, Kuninori Morimoto wrote:
> 
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> 
> In descriptor mode, the descriptor running pointer is not maintained
> by the interrupt handler, thus, driver finds the running descriptor
> from the descriptor pointer field in the CHCRB register.
> But, CHCRB::DPTR indicates *next* descriptor pointer, not current.
> Thus, The residue calculation will be missed. This patch fixup it.

Applied, thanks

-- 
~Vinod

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Re: [PATCH] rcar-dmac: fixup descriptor pointer for descriptor mode Vinod Koul <vinod.koul@intel.com> - 2017-05-30 08:20 +0200

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