Re: Exporting calibrate_delay()

From: Alan Cox (
Date: Thu Aug 24 2000 - 17:59:19 EST

> The idea is to have a different value for loops_per_sec for all
> (read: 12) clock speeds. I want to calculate the values when the

So you could compute all twelve in the driver init functions before the
kernel loads the root fs, then the initfunc is still there

> driver loads so I can just plug in a new value for loops_per_sec
> at a clock speed change. If I disable all interrupts while
> recalibrating it shouldn't hurt udelay, right?

That sounds right

> How correct is that? More specifically: how sensitive are the other
> drivers for slightly incorrect values of loops_per_sec?

Generally pretty slack.


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This archive was generated by hypermail 2b29 : Thu Aug 31 2000 - 21:00:14 EST