From: Mark Brown <broonie@kernel.org>
To: Daniel Baluta <daniel.baluta@gmail.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>,
Daniel Baluta <daniel.baluta@nxp.com>,
Nicolin Chen <nicoleotsuka@gmail.com>,
alsa-devel@alsa-project.org, Timur Tabi <timur@tabi.org>,
Xiubo.Lee@gmail.com,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Takashi Iwai <tiwai@suse.com>,
fabio.estevam@nxp.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [alsa-devel] [PATCH v3 2/2] ASoC: imx-wm8962: Fix codec_clk cleanup
Date: Wed, 29 Mar 2017 12:47:52 +0100 [thread overview]
Message-ID: <20170329114752.bpfzkkvbvan3ayn5@sirena.org.uk> (raw)
In-Reply-To: <CAEnQRZCiaCfzQRDo-3UupH8fv9BttZBVVXo63FdnrdqG49F1GQ@mail.gmail.com>
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On Wed, Mar 29, 2017 at 02:38:23PM +0300, Daniel Baluta wrote:
> If I read the code correctly, both machine and codec driver are doing:
> * codec_clk = clk_get(...)
> I guess that the codec driver is the first to be loaded and it will call:
> * __clk_create_clk
> which will do the allocation. Then when machine driver is loaded, it
> will only take a reference to the allocated clock.
> I might be very wrong on this. Can you clarify what does moving allocation
> of the clock into codec driver implies? Machine driver only needs a reference
> to codec_clk to just get the clock's rate.
Oh, so the CODEC is already requesting the clock. Then what I'm saying
is work out a way to use the handle to the clock that the CODEC driver
created. In effect the machine driver is telling the CODEC driver to do
things with the input clock.
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next prev parent reply other threads:[~2017-03-29 11:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-28 8:58 [PATCH v3 0/2] imx-wm8962: Let codec driver enable/disable its MCLK Daniel Baluta
2017-03-28 8:58 ` [PATCH v3 1/2] ASoC: " Daniel Baluta
2017-03-28 8:58 ` [PATCH v3 2/2] ASoC: imx-wm8962: Fix codec_clk cleanup Daniel Baluta
2017-03-28 9:21 ` [alsa-devel] " Charles Keepax
2017-03-28 10:47 ` Daniel Baluta
2017-03-28 11:53 ` Charles Keepax
2017-03-28 15:24 ` Mark Brown
2017-03-28 15:42 ` Charles Keepax
2017-03-29 11:38 ` Daniel Baluta
2017-03-29 11:47 ` Mark Brown [this message]
2017-03-29 11:54 ` Applied "ASoC: imx-wm8962: Fix codec_clk cleanup" to the asoc tree Mark Brown
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