[PATCH] ARM i.MX25: clk: parent per5_clk to AHB clock

[Steffen Trumtrar]

On Wed, Jan 30, 2013 at 10:53:53AM +0100, Uwe Kleine-König wrote:
> On Wed, Jan 30, 2013 at 10:33:55AM +0100, Steffen Trumtrar wrote:
> > The mxc-timer on the imx25 needs to be derived from the AHB clock.
> > If a bootloader reparents this clock to the ipg_clk_highfreq, which according
> > to the datasheet is a valid operation, the system can/will produce lockups/
> > freezes after some time [1].
> > 
> > This can be forced with code like
> > 	while(1)
> >                 syscall(SYS_clock_gettime, CLOCK_REALTIME, &tp);
> > 
> > This was already fixed with the commit
> > 	 "i.MX25 GPT clock fix: ensure correct the clock source" [2],
> > but it seems, that it got lost. So, re-add this to have a correct gpt.
> > 
> > [1]: http://lists.arm.linux.org.uk/lurker/message/20130129.161230.229bda17.en.html
> > [2]: 2012d9ca2a1381ae3e733330a7f0d1d2f1988bba
> Instead of the last paragraph I'd write:
> 
> 	This problem was already fixed with commit
> 
> 		2012d9c (i.MX25 GPT clock fix: ensure correct the clock source)
> 
> 	for v3.1-rc2 but this was lost when i.MX was converted to the common
> 	clock framework (commit 6bbaec5; ARM i.MX25: implement clocks using
> 	common clock framework).
> 
> > Signed-off-by: Steffen Trumtrar <s.trumtrar at pengutronix.de>
> > Cc: stable at vger.kernel.org
> 
> Cc: stable at vger.kernel.org # v3.5+
> 

That is better. I will resend my patch in a sec with a new commit message.

Thanks,
Steffen

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