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From: Daniel Mack <zonque@gmail.com>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: "Porter, Matt" <mporter@ti.com>,
	alsa-devel@alsa-project.org, sudhakar.raj@ti.com,
	tony@atomide.com, "Nori, Sekhar" <nsekhar@ti.com>,
	davinci-linux-open-source@linux.davincidsp.com, "Hebbar,
	Gururaja" <gururaja.hebbar@ti.com>,
	Peter Ujfalusi <peter.ujfalusi@ti.com>,
	lrg@ti.com, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 2/3] ASoC: Davinci: pcm: add support for sram-support-less platforms
Date: Tue, 02 Oct 2012 12:33:39 +0200	[thread overview]
Message-ID: <506AC303.9080906@gmail.com> (raw)
In-Reply-To: <20121002093753.GU4360@opensource.wolfsonmicro.com>

On 02.10.2012 11:37, Mark Brown wrote:
> On Tue, Oct 02, 2012 at 10:48:53AM +0300, Peter Ujfalusi wrote:
> 
>> I also agree that ifdef is not a good solution.
>> It is better to have this information passed as device_data and via DT it can
>> be decided based on the compatible property for the device.
> 
> That's not really the problem here - the problem is that the APIs used
> to get the SRAM are DaVinci only so it's not possible to build on OMAP
> or other platforms.  The SRAM code needs to move to a standard API.

What about following Matt Porter's idea and ignore the SRAM code
entirely and port the entire PCM code to generic dmaengine code first?
The EDMA driver needs to learn support for cyclic DMA for that, and I
might give that a try in near future.

Later on, the SRAM ping-pong code can get added back using genalloc
functions, as Sekhar proposed. That needs to be done by someone who has
access to a Davinci board though, I only have a AM33xx/OMAP here.


Daniel

  reply	other threads:[~2012-10-02 10:33 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-31 12:50 [PATCH 0/3] ASoC: Davinci: McASP: add support new McASP IP Variant Hebbar, Gururaja
2012-08-31 12:50 ` [PATCH 1/3] " Hebbar, Gururaja
2012-09-01  0:44   ` Mark Brown
2012-09-03  6:57     ` Hebbar, Gururaja
2012-09-05  4:01       ` Mark Brown
2012-08-31 12:50 ` [PATCH 2/3] ASoC: Davinci: pcm: add support for sram-support-less platforms Hebbar, Gururaja
2012-09-12  7:50   ` Hebbar, Gururaja
2012-09-12  7:52     ` Mark Brown
2012-09-22 15:33   ` Mark Brown
2012-09-27  6:57     ` Hebbar, Gururaja
     [not found]       ` <1BAFE6F6C881BF42822005164F1491C33EA92A1D-Er742YJ7I/eIQmiDNMet8wC/G2K4zDHf@public.gmane.org>
2012-10-01 15:54         ` Mark Brown
2012-10-02  7:48     ` Peter Ujfalusi
2012-10-02  9:37       ` Mark Brown
2012-10-02 10:33         ` Daniel Mack [this message]
2012-10-02 11:06           ` [alsa-devel] " Sekhar Nori
2012-10-02 13:42             ` Daniel Mack
     [not found]               ` <506AEF57.2000306-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-10-02 16:41                 ` Matt Porter
2012-10-02 16:50                   ` Daniel Mack
     [not found]                     ` <506B1B46.2070006-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-10-02 17:28                       ` [alsa-devel] " Matt Porter
2012-10-04  9:21                     ` Daniel Mack
     [not found]                       ` <506D552A.2000506-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-10-04  9:38                         ` [alsa-devel] " Porter, Matt
2012-10-04  9:57                           ` Daniel Mack
     [not found]                             ` <506D5D8A.7030902-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-10-04 10:28                               ` [alsa-devel] " Matt Porter
2012-10-04 11:11                                 ` Daniel Mack
2012-10-02 16:30           ` [alsa-devel] " Matt Porter
     [not found]       ` <506A9C65.5040309-l0cyMroinI0@public.gmane.org>
2012-10-02 16:28         ` Matt Porter
2012-10-02  8:37     ` Sekhar Nori
2012-08-31 12:50 ` [PATCH 3/3] ASoC: Davinci: evm: Fix typo in cpu dai name Hebbar, Gururaja
2012-09-01  0:47   ` Mark Brown
2012-10-02 22:28 ` [alsa-devel] [PATCH 0/3] ASoC: Davinci: McASP: add support new McASP IP Variant Daniel Mack
     [not found]   ` <506B6A9D.3090100-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-10-03  7:16     ` Hebbar, Gururaja
2012-10-03 11:16       ` Daniel Mack
     [not found]         ` <506C1E97.1070700-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-10-03 12:57           ` [alsa-devel] " Hebbar, Gururaja
2012-10-03 14:07             ` Daniel Mack
     [not found]               ` <506C46AD.1090807-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-10-04 19:50                 ` [alsa-devel] " Matt Porter
2012-11-25 10:26             ` Yegor Yefremov
2012-11-26 11:32               ` Hebbar, Gururaja
2012-11-26 11:35                 ` Mark Brown
     [not found]                   ` <20121126113521.GD9411-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-11-26 11:42                     ` [alsa-devel] " Hebbar, Gururaja
2012-11-26 11:57                       ` Mark Brown

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