Thread (6 messages) 6 messages, 5 authors, 2010-06-28
STALE5815d

[PATCH 3/4] pxa2xx/cpufreq: Fix PCMCIA frequency scaling

From: nico@fluxnic.net (Nicolas Pitre)
Date: 2010-06-24 19:46:51

Possibly related (same subject, not in this thread)

On Thu, 24 Jun 2010, Russell King - ARM Linux wrote:
On Thu, Jun 24, 2010 at 08:51:27PM +0200, Marek Vasut wrote:
quoted
Dne St 23. ?ervna 2010 19:49:59 Robert Jarzmik napsal(a):
quoted
Marek Vasut [off-list ref] writes:
quoted
The MCxx values must be based off memory clock, not CPU core clock.

This also fixes the bug where on some machines the LCD went crazy while
using PCMCIA.
That looks correct to me.

Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>

Cheers.

--
Robert
Actually lemme rethink this ... it might still be incorrect.
As Nicolas was the one who originally wrote that code, while he was
working for Montavista and interacting with Intel, I'd be surprised
if he didn't try finding out what the right answer is to that fixme.
Well, I might have tried, or I might not have and this simply was never 
revisited. But I clearly don't remember any of the context anymore.
I suspect as the fixme remained that there was no clear answer.
Whatever works in practice is probably the best answer at this point.


Nicolas
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