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From: "Li.Xiubo@freescale.com" <Li.Xiubo@freescale.com>
To: Shengchao Guo <Shawn.Guo@freescale.com>
Cc: "shawn.guo@linaro.org" <shawn.guo@linaro.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"u.kleine-koenig@pengutronix.de" <u.kleine-koenig@pengutronix.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>
Subject: RE: [PATCH v3] ARM: ls1021a: add gating clocks to IP blocks.
Date: Fri, 26 Sep 2014 03:14:26 +0000	[thread overview]
Message-ID: <eb17fb36d1a04812836ad46bace8c4bf@BY2PR0301MB0613.namprd03.prod.outlook.com> (raw)
In-Reply-To: <20140926015713.GG21077@dragon>

> > > As the parent of the clocks registered by this function is "dummy" from
> > > what I see, what is the point of setting flag CLK_SET_RATE_PARENT then?
> > >
> > > > +			CLK_IGNORE_UNUSED, reg,	shift,
> > >
> > > Why flag CLK_IGNORE_UNUSED?
> > >
> >
> > As the SoC reference manual all the IP blocks will be enabled when powered
> up.
> > But the Linux OS will disable all the IP blocks' clocks as default without
> this.
> >
> > For now, this gate driver will only used for PM support of some IP blocks.
> For the
> > Others needed to be enabled as default.
> 
> Ok, got it. I'm fine with the flag then, and we can remove it after all
> those client devices manage their clocks well.
> 

Okay.

Thanks,

BRs
Xiubo


> Shawn



  reply	other threads:[~2014-09-26  3:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-23 12:44 Xiubo Li
2014-09-25  8:54 ` Shawn Guo
2014-09-25  9:22   ` Li.Xiubo
2014-09-26  1:57     ` Shawn Guo
2014-09-26  3:14       ` Li.Xiubo [this message]
2014-10-16  2:30   ` Li.Xiubo

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