linux-kernel - Re: [PATCH 1/2] Revert "ARM: dts: imx: use dual-fifo sdma script for ssi"

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Message-ID: <20140113092021.GD25466@intel.com>
Date:	Mon, 13 Jan 2014 14:50:21 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Shawn Guo <shawn.guo@...aro.org>
Cc:	Nicolin Chen <Guangyu.Chen@...escale.com>,
	dan.j.williams@...el.com, kernel@...gutronix.de,
	fabio.estevam@...escale.com, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] Revert "ARM: dts: imx: use dual-fifo sdma script
 for ssi"

On Fri, Jan 10, 2014 at 10:44:03AM +0800, Shawn Guo wrote:
> On Wed, Jan 08, 2014 at 04:45:55PM +0800, Nicolin Chen wrote:
> > This reverts commit b1d27c79c8377df1880447375deffa3bb82c7bd3.
> > 
> > Previously we switched the SSI scriprt to dual-fifo mode to reduce playback
> > underrun issue, which is only included by SDMA firmware version 2. However,
> > there are quite a lot people still using version 1 or default firmware in
> > the ROM code of SoC while these two kinds of firmwares do not support the
> > dual-fifo script and the audio function on their platform would be broken.
> > 
> > Thus this patch provisionally reverts the dual-fifo script to the original
> > single fifo script to meet all kinds of users' requirements, including the
> > version 1/2 or inner ROM firmware.
> > 
> > Reported-by: Fabio Estevam <fabio.estevam@...escale.com>
> > Signed-off-by: Nicolin Chen <Guangyu.Chen@...escale.com>
> 
> If Vinod's tree can be rebased, the patch can just be dropped.
Nope dont want Linus's ire due to rebaseing tree so late in cyle!

--
~Vinod
> Otherwise,
> 
> Acked-by: Shawn Guo <shawn.guo@...aro.org>
> 

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