Date: Sat, 17 Nov 2012 14:54:35 +0100
From: Andrew Lunn <andrew@lunn.ch>
To: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: Andrew Lunn <andrew@lunn.ch>, linux-arm-kernel@lists.infradead.org,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] clk: mvebu: armada 370/XP add clock gating control
 provider for DT
Message-ID: <20121117135435.GA13479@lunn.ch>
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 <20121117082602.GF24569@lunn.ch>
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> > What is the ddr clock for? Does bad things happen if you turn it off?
> > Kirkwood has a similar clock, dunit, which i decided not to export,
> > since when you turn it off, the whole SoC locks up.
> 
> Well of course if you code run in DDR then it could be a problem. But
> I think it could be useful to turn it off when going to suspend, it
> the DDR can do self-refresh. In this case it should be possible to run
> the code from SRAM or L2 Cache.

O.K. Just watch out for the lateinit call in the clock framework.

     Andrew
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