[PATCH] at91sam9g45: fix i2c bus speed
Peter Korsgaard
jacmet at sunsite.dk
Wed Sep 22 11:18:57 EDT 2010
>>>>> "Jean-Christophe" == Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com> writes:
Hi,
>> You don't expect most 9g45 users will run at 400MHz? It seems pretty
>> likely to me. In any case, a safe (but somewhat slow) default seems
>> better than a potentially unsafe one.
>>
>> Now, I agree that it would be nice to add an interface to tweak this
>> delay if needed (extra argument to at91_add_device_i2c()?), but that's
>> next to the discussion about what the default should be.
Jean-Christophe> I'd prefer to calculate it
Jean-Christophe> so we specify which max freq we want in my mind it
Jean-Christophe> will be good to be as in spi to specific per device
Jean-Christophe> it's max speed so we can adapt the bus freq
Yes, that sounds like a nice long term idea, but let's fix the immediate
problem in the mean time, right?
--
Bye, Peter Korsgaard
More information about the linux-arm-kernel
mailing list