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kernel: add calibration_delay_done()

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Add calibration_delay_done() call and dummy implementation. This allows
architectures to stop accepting registrations for new timer based delay
functions.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Peter De Schrijver 2014-06-12 18:58:27 +03:00 committed by Stephen Warren
parent 7171511eae
commit e6639117d6
1 changed files with 11 additions and 0 deletions
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11
init/calibrate.c
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@ -262,6 +262,15 @@ unsigned long __attribute__((weak)) calibrate_delay_is_known(void)
return 0;
}
/*
* Indicate the cpu delay calibration is done. This can be used by
* architectures to stop accepting delay timer registrations after this point.
*/
void __attribute__((weak)) calibration_delay_done(void)
{
}
void calibrate_delay(void)
{
unsigned long lpj;
@ -301,4 +310,6 @@ void calibrate_delay(void)
loops_per_jiffy = lpj;
printed = true;
calibration_delay_done();
}