Re: [PATCH] mmc: Added quirks for Ricoh 1180:e823 lower base clockfrequency

From: Manoj Iyer
Date: Mon Jul 18 2011 - 17:13:00 EST

I see, thanks. So we're lacking any data on what speed the card would
normally provide. Perhaps you could try that card on a different
controller, just so we're able to see whether it's usually possible
to get closer to 45M/sec with it?

Sure, let me generate some data on based on Ricoh R5C822.

I think I'll take your patch as-is for 3.1 -- since if there is a
performance degradation, it's on cards that simply don't work at all
right now -- and if you're able to work on a followup patch that only
performs the clock-lowering after the first error, I think that'd be a
handy patch to have around. Does that sound good?

That sounds good to me, that way we limit degradation in performance only to previously non-working cards. I will send the V2 soon.


- Chris.
Chris Ball <cjb@xxxxxxxxxx> <>
One Laptop Per Child

Thanks a ton.
Manoj Iyer
Hardware Enablement
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