linux-kernel - Re: [PATCHv3] dma40: Improve the logic of stopping logical chan

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Message-ID: <CACRpkdaXRJVtqgnrkuJ8YUPDp3QSPQR9LmAX=ePdYxzZagKa=w@mail.gmail.com>
Date:	Tue, 10 Apr 2012 10:12:55 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	Vinod Koul <vinod.koul@...el.com>,
	Narayanan G <narayanan.gopalakrishnan@...ricsson.com>
Cc:	linux-kernel@...r.kernel.org, rabin.vincent@...ricsson.com,
	linus.walleij@...ricsson.com, shreshthakumar.sahu@...ricsson.com,
	mathieu poirier <mathieu.poirier@...aro.org>
Subject: Re: [PATCHv3] dma40: Improve the logic of stopping logical chan

On Thu, Feb 9, 2012 at 8:11 AM, Narayanan G
<narayanan.gopalakrishnan@...ricsson.com> wrote:

> From the V2 version of the controller a logical channel
> can be directly stopped by issuing a SUSPEND_REQ on the EE
> bits. There is no need to suspend the physical channel and
> restart it.
>
> Also, the support for pre-V2 hw is discontinued.
>
> EE bits for writing:
>
> 00: disable only if AS=11 or AS=00
> 01: enable
> 10: suspend_req only if AS=01 & EE=01 or EE=11
> 11: round / no change for writing
>
> Signed-off-by: Narayanan G <narayanan.gopalakrishnan@...ricsson.com>
> Acked-by: Linus Walleij <linus.walleij@...aro.org>

Vinod what happened to this patch?

Can you please push it for the -rc:s since it's solving a real problem
for us...

Yours,
Linus Walleij
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