Miroslav Lichvar e147f2f11e sys: drop frequency scaling in Linux driver ...

Since the kernel USER_HZ constant was introduced and the internal HZ
can't be reliably detected in user-space, the frequency scaling constant
used with older kernels is just a random guess.

Remove the scaling completely and let the closed loop compensate for the
error. To prevent thrashing between two states when the system's
frequency error is close to a multiple of USER_HZ, stick to the current
tick value if it's next to the new required tick. This is used only on
archs where USER_HZ is 100 as the frequency adjustment is limited to 500
ppm.

The linux_hz and linux_freq_scale directives are no longer supported,
but allowed by the config parser.

2014-05-23 16:15:28 +02:00

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