linux-kernel - Re: [PATCH V2] ASoC: fsl_ssi: refine ipg clock usage in this module

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Message-ID: <20140912020110.GA414@audiosh1>
Date:	Fri, 12 Sep 2014 10:01:12 +0800
From:	Shengjiu Wang <shengjiu.wang@...escale.com>
To:	Nicolin Chen <nicoleotsuka@...il.com>, <mpa@...gutronix.de>
CC:	<timur@...i.org>, <Li.Xiubo@...escale.com>, <lgirdwood@...il.com>,
	<broonie@...nel.org>, <perex@...ex.cz>, <tiwai@...e.de>,
	<alsa-devel@...a-project.org>, <linuxppc-dev@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2] ASoC: fsl_ssi: refine ipg clock usage in this module

On Thu, Sep 11, 2014 at 03:57:37PM -0700, Nicolin Chen wrote:
> On Thu, Sep 11, 2014 at 01:38:29PM +0800, Shengjiu Wang wrote:
> > Move the ipg clock enable and disable operation to startup and shutdown,
> > that is only enable ipg clock when ssi is working. Keep clock is disabled
> > when ssi is in idle.
> > otherwise, _fsl_ssi_set_dai_fmt function need to be called in probe,
> > so add ipg clock control for it.
> 
> It seems to be no objection so far against my last suggestion to
> use regmap's mmio_clk() for named ipg clk only. So you may still
> consider about that.
>
I think mmio_clk() can be put to another patch. and this patch only for clk_enable()
and clk_disable() operation.
 
> Anyway, I'd like to do thing in parallel. So I just simply tested
> it on my side and its works fine, it may still need to be tested
> by others though.
> 
> Nicolina

Hi Markus

could you please review it, and share your comments?

wang shengjiu
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