linux-kernel - Re: [PATCH] dmaengine/amba-pl08x : reset phychan

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Message-ID: <CACRpkdYNNCxK8iZFQOpnSfYdtEUkEmMCH3otQf6Q9vPwUadT0w@mail.gmail.com>
Date:	Tue, 24 Apr 2012 15:08:42 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	ciminaghi@...dd.com
Cc:	vinod.koul@...el.com, linux-kernel@...r.kernel.org,
	dan.j.williams@...el.com, pgeninatti@...t-in.com,
	acolosimo@...t-in.com, alarosa@...nintellect.eu
Subject: Re: [PATCH] dmaengine/amba-pl08x : reset phychan_hold on terminate all

On Thu, Apr 19, 2012 at 12:20 PM,  <ciminaghi@...dd.com> wrote:

> From: Davide Ciminaghi <ciminaghi@...dd.com>
>
> When a client calls pl08x_control with DMA_TERMINATE_ALL, it is correct
> to terminate and release the phy channel currently in use (if one is in use),
> but the phychan_hold counter must also be reset (otherwise it could get
> trapped in an unbalanced state).
>
> Signed-off-by: Davide Ciminaghi <ciminaghi@...dd.com>

Can't test it right now but looks convincingly correct:
Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij
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