linux-kernel - Re: [PATCH 1/2] AT91 slow-clock suspend: don't wait when turning PLLs off

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Message-ID: <w2ocd73a99e1004061427t322f8d4cmecd708ad16580f00@mail.gmail.com>
Date:	Tue, 6 Apr 2010 23:27:55 +0200
From:	Andrew Victor <avictor.za@...il.com>
To:	Anders Larsen <al@...rsen.net>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>,
	Julien Langer <julien.langer@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] AT91 slow-clock suspend: don't wait when turning PLLs 
	off

hi Anders,

> From: Julien Langer <julien.langer@...il.com>
>
> AT91: when turning off the PLLs during suspend, don't wait for the lock flag
> to be set. Previously the code would always run into the loop limitation
> of 1000 iterations because the flag is never set when turning the PLLs off.
>
> Signed-off-by: Julien Langer <julien.langer@...il.com>
> Signed-off-by: Anders Larsen <al@...rsen.net>
> Cc: Andrew Victor <avictor.za@...il.com>
> Cc: Russell King <linux@....linux.org.uk>

During suspend we set the MULA and MULB bits to 0 to disable the
PLL's.  When disabled, the PLLs will never "lock".

   Acked-by: Andrew Victor <linux@...im.org.za>


Russell:  This is patch 5975/1 in the patch-system.
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