From: broonie@opensource•wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 07/22] ASoC: Ux500: Initialise PCM from MSP probe rather than as a device
Date: Thu, 23 Aug 2012 15:37:57 +0100 [thread overview]
Message-ID: <20120823143757.GB7995@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20120823132618.GB1047@gmail.com>
On Thu, Aug 23, 2012 at 02:26:19PM +0100, Lee Jones wrote:
> > I think Ola is suggesting probing the DMA driver from the machine which
> > will also work though I'm not 100% sure if I'm parsing the above
> > correctly. The issue in DT terms is that if the DMA controller is
> > shared with a bunch of other IPs then it should have one node shared
> > between them all and not a bunch of shim nodes inserted in the middle
> > which only exists due to the way Linux instantiates stuff.
> When you say 'machine', do you mean from arch/<arch>/mach-*? If so, I'm
> keen for that not to happen.
No, sound/soc/ux500/snowball.c or whatever. At least that's my guess.
> > They instantiate the PCM driver dynamically from the DAI when it's
> > probed which is pretty much what you're patch is doing.
> So they do it in the same why I have with this patch? Do you know why
> Ola might think this is a bad idea?
I'm not 100% sure, I'm guessing it might be down to the fact that you
end up with multiple PCM drivers. We could avoid that with refcounting
but nobody's really worried about it.
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next prev parent reply other threads:[~2012-08-23 14:37 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 15:47 [PATCH 00/22] mop500 related Audio reorganisation and fixups Lee Jones
2012-08-09 15:47 ` [PATCH 01/22] ARM: ux500: Fix merge error, no matching driver name for 'snd_soc_u8500' Lee Jones
2012-08-14 8:38 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 02/22] ARM: ux500: Ensure probing of Audio devices when Device Tree is enabled Lee Jones
2012-08-14 8:40 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 03/22] ASoC: ab8500: Inform SoC Core that we have our own I/O arrangements Lee Jones
2012-08-14 8:40 ` Linus Walleij
2012-08-14 12:17 ` [alsa-devel] " Takashi Iwai
2012-08-15 14:01 ` Mark Brown
2012-08-09 15:47 ` [PATCH 04/22] ASoC: Ux500: Move MSP pinctrl setup into the MSP driver Lee Jones
2012-08-14 8:51 ` Linus Walleij
2012-08-20 8:09 ` Lee Jones
2012-08-20 11:59 ` Lee Jones
2012-08-27 23:09 ` Linus Walleij
2012-08-30 13:18 ` Lee Jones
2012-08-09 15:47 ` [PATCH 05/22] ASoC: Ux500: Enable MOP500 driver for Device Tree Lee Jones
2012-08-14 8:52 ` Linus Walleij
2012-09-10 16:45 ` Lee Jones
2012-08-09 15:47 ` [PATCH 06/22] ASoC: Ux500: Enable ux500 MSP " Lee Jones
2012-08-14 8:55 ` Linus Walleij
2012-09-10 16:45 ` Lee Jones
2012-08-09 15:47 ` [PATCH 07/22] ASoC: Ux500: Initialise PCM from MSP probe rather than as a device Lee Jones
2012-08-14 11:08 ` Linus Walleij
[not found] ` <002801cd7c31$14d3d0c0$3e7b7240$@se>
[not found] ` <20120820085111.GJ8450@gmail.com>
[not found] ` <006d01cd7f5a$65937840$30ba68c0$@se>
2012-08-23 9:22 ` Lee Jones
2012-08-23 11:39 ` Mark Brown
2012-08-23 12:20 ` Lee Jones
2012-08-23 12:59 ` Mark Brown
2012-08-23 13:26 ` Lee Jones
2012-08-23 14:37 ` Mark Brown [this message]
2012-08-23 14:59 ` Lee Jones
2012-08-23 15:00 ` Mark Brown
2012-09-19 12:29 ` Lee Jones
2012-09-19 13:33 ` [RESENDING] " Lee Jones
2012-09-20 9:03 ` Ola Lilja
2012-09-20 12:49 ` Mark Brown
2012-09-20 12:52 ` Lee Jones
2012-11-22 14:05 ` Lee Jones
2012-11-23 1:58 ` Mark Brown
2012-11-23 9:12 ` Lee Jones
2012-11-23 10:09 ` Mark Brown
2012-08-09 15:47 ` [PATCH 08/22] ASoC: codecs: Enable AB8500 CODEC for Device Tree Lee Jones
2012-08-14 11:09 ` Linus Walleij
2012-08-14 12:17 ` [alsa-devel] " Takashi Iwai
2012-08-20 11:34 ` [PATCH 1/1] " Lee Jones
2012-08-20 14:36 ` Mark Brown
2012-08-21 11:51 ` Lee Jones
2012-08-21 12:39 ` Mark Brown
2012-08-21 12:58 ` Lee Jones
2012-08-21 13:40 ` Mark Brown
2012-08-09 15:47 ` [PATCH 09/22] Documentation: Define the MOP500 Audio Machine Driver Device Tree bindings Lee Jones
2012-08-09 15:47 ` [PATCH 10/22] Documentation: Define the MSP " Lee Jones
2012-08-09 15:47 ` [PATCH 11/22] ARM: ux500: Clean-up MSP platform code Lee Jones
2012-08-14 11:12 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 12/22] ARM: ux500: Add AB8500 CODEC node to DB8500 Device Tree Lee Jones
2012-08-20 14:34 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 13/22] ARM: ux500: Fork MSP platform registration for step-by-step DT enablement Lee Jones
2012-08-14 11:13 ` Linus Walleij
2012-08-20 8:06 ` Lee Jones
2012-08-27 23:07 ` Linus Walleij
2012-08-28 7:48 ` Lee Jones
2012-08-30 23:56 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 14/22] ARM: ux500: Pass MSP DMA platform data though AUXDATA Lee Jones
2012-08-14 11:14 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 15/22] ARM: ux500: Stop registering the MOP500 Audio driver from platform code Lee Jones
2012-08-14 11:16 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 16/22] ARM: ux500: Stop registering the PCM " Lee Jones
2012-08-14 11:16 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 17/22] ARM: ux500: Remove platform registration of MSP devices Lee Jones
2012-08-14 11:18 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 18/22] ARM: ux500: Rename MSP board file to something more meaningful Lee Jones
2012-08-14 11:20 ` Linus Walleij
2012-08-30 12:31 ` Lee Jones
2012-08-09 15:47 ` [PATCH 19/22] ARM: ux500: Rename db8500.dtsi to dbx5x0.dtsi to encompass the u9500, u8540 and u9540 Lee Jones
2012-08-14 11:22 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 20/22] ARM: ux500: Add nodes for the MSP into Device Tree Lee Jones
2012-08-14 11:23 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 21/22] ARM: ux500: Add all encompassing sound node to the Snowball " Lee Jones
2012-08-14 11:23 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 22/22] Documentation: Add the AB8500 CODEC device to the MFD AB8500 doc Lee Jones
2012-08-14 11:24 ` Linus Walleij
2012-08-09 18:50 ` [PATCH 00/22] mop500 related Audio reorganisation and fixups Mark Brown
2012-08-09 19:40 ` Lee Jones
2012-08-10 8:48 ` Linus Walleij
2012-08-10 9:37 ` Lee Jones
2012-08-14 11:34 ` Linus Walleij
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