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| author | Nicolas Pitre | 2015-04-28 21:51:19 +0200 |
|---|---|---|
| committer | Nicolas Pitre | 2015-05-06 17:47:10 +0200 |
| commit | 7895f73169ade9a74940ae6b0b4ee82faf286861 (patch) | |
| tree | 77b2a86217062942a1a78c9aca722b5e6f707295 /arch/arm/include | |
| parent | ARM: MCPM: add references to the available documentation in the code (diff) | |
| download | kernel-qcow2-linux-7895f73169ade9a74940ae6b0b4ee82faf286861.tar.gz kernel-qcow2-linux-7895f73169ade9a74940ae6b0b4ee82faf286861.tar.xz kernel-qcow2-linux-7895f73169ade9a74940ae6b0b4ee82faf286861.zip | |
ARM: MCPM: remove residency argument from mcpm_cpu_suspend()
This is currently unused.
If a suspend must be limited to CPU level only by preventing the last man
from triggering a cluster level suspend then this should be determined
according to many other criteria the MCPM layer is currently not aware of.
It is unlikely that mcpm_cpu_suspend() would be the proper conduit for
that information anyway.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Dave Martin <Dave.Martin@arm.com>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/mcpm.h | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h index 6a40d5f8db60..acd4983d9b1f 100644 --- a/arch/arm/include/asm/mcpm.h +++ b/arch/arm/include/asm/mcpm.h @@ -137,17 +137,12 @@ int mcpm_wait_for_cpu_powerdown(unsigned int cpu, unsigned int cluster); /** * mcpm_cpu_suspend - bring the calling CPU in a suspended state * - * @expected_residency: duration in microseconds the CPU is expected - * to remain suspended, or 0 if unknown/infinity. - * - * The calling CPU is suspended. The expected residency argument is used - * as a hint by the platform specific backend to implement the appropriate - * sleep state level according to the knowledge it has on wake-up latency - * for the given hardware. + * The calling CPU is suspended. This is similar to mcpm_cpu_power_down() + * except for possible extra platform specific configuration steps to allow + * an asynchronous wake-up e.g. with a pending interrupt. * * If this CPU is found to be the "last man standing" in the cluster - * then the cluster may be prepared for power-down too, if the expected - * residency makes it worthwhile. + * then the cluster may be prepared for power-down too. * * This must be called with interrupts disabled. * @@ -157,7 +152,7 @@ int mcpm_wait_for_cpu_powerdown(unsigned int cpu, unsigned int cluster); * This will return if mcpm_platform_register() has not been called * previously in which case the caller should take appropriate action. */ -void mcpm_cpu_suspend(u64 expected_residency); +void mcpm_cpu_suspend(void); /** * mcpm_cpu_powered_up - housekeeping workafter a CPU has been powered up |