linux-kernel - Re: [PATCH v3 04/15] dmaengine: Pass flags via device_prep_dma

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Message-ID: <20120919024528.GA6460@S2100-06.ap.freescale.net>
Date:	Wed, 19 Sep 2012 10:45:30 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
CC:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>, Tony Lindgren <tony@...mide.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Vinod Koul <vinod.koul@...el.com>, Dan Williams <djbw@...com>,
	Jarkko Nikula <jarkko.nikula@...mer.com>,
	<alsa-devel@...a-project.org>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	Janusz Krzysztofik <jkrzyszt@....icnet.pl>,
	Ricardo Neri <ricardo.neri@...com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Barry Song <baohua.song@....com>,
	Srinidhi Kasagar <srinidhi.kasagar@...ricsson.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Vista Silicon <javier.martin@...ta-silicon.com>,
	Zhangfei Gao <zhangfei.gao@...vell.com>,
	Laxman Dewangan <ldewangan@...dia.com>
Subject: Re: [PATCH v3 04/15] dmaengine: Pass flags via
 device_prep_dma_cyclic() callback

On Fri, Sep 14, 2012 at 03:05:47PM +0300, Peter Ujfalusi wrote:
> Change the parameter list of device_prep_dma_cyclic() so the DMA drivers
> can receive the flags coming from clients.
> This feature can be used during audio operation to disable all audio
> related interrupts when the DMA_PREP_INTERRUPT is cleared from the flags.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
> CC: Nicolas Ferre <nicolas.ferre@...el.com>
> CC: Barry Song <baohua.song@....com>
> CC: Srinidhi Kasagar <srinidhi.kasagar@...ricsson.com>
> CC: Russell King - ARM Linux <linux@....linux.org.uk>
> CC: Vista Silicon <javier.martin@...ta-silicon.com>
> CC: Zhangfei Gao <zhangfei.gao@...vell.com>
> CC: Shawn Guo <shawn.guo@...aro.org>
> CC: Laxman Dewangan <ldewangan@...dia.com>
> ---
...
>  drivers/dma/imx-dma.c         | 2 +-
>  drivers/dma/imx-sdma.c        | 2 +-
...
>  drivers/dma/mxs-dma.c         | 2 +-

Acked-by: Shawn Guo <shawn.guo@...aro.org>

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