diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-28 16:14:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-28 16:14:17 -0700 |
| commit | e4f2e5eaac8f5f903ca4a8cc944d26e68745d6bb (patch) | |
| tree | 1a8d89561fa5b231202d5287acc2683eccadee7f /drivers/acpi/processor_driver.c | |
| parent | 9a90e09854a3c7cc603ab8fc9163f77bb1f66cfa (diff) | |
| parent | 2671717265ae6e720a9ba5f13fbec3a718983b65 (diff) | |
Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
intel_idle: native hardware cpuidle driver for latest Intel processors
ACPI: acpi_idle: touch TS_POLLING only in the non-MWAIT case
acpi_pad: uses MONITOR/MWAIT, so it doesn't need to clear TS_POLLING
sched: clarify commment for TS_POLLING
ACPI: allow a native cpuidle driver to displace ACPI
cpuidle: make cpuidle_curr_driver static
cpuidle: add cpuidle_unregister_driver() error check
cpuidle: fail to register if !CONFIG_CPU_IDLE
Diffstat (limited to 'drivers/acpi/processor_driver.c')
| -rw-r--r-- | drivers/acpi/processor_driver.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 5675d9747e8..b1034a9ada4 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -616,7 +616,8 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device) acpi_processor_get_limit_info(pr); - acpi_processor_power_init(pr, device); + if (cpuidle_get_driver() == &acpi_idle_driver) + acpi_processor_power_init(pr, device); pr->cdev = thermal_cooling_device_register("Processor", device, &processor_cooling_ops); @@ -920,9 +921,14 @@ static int __init acpi_processor_init(void) if (!acpi_processor_dir) return -ENOMEM; #endif - result = cpuidle_register_driver(&acpi_idle_driver); - if (result < 0) - goto out_proc; + + if (!cpuidle_register_driver(&acpi_idle_driver)) { + printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n", + acpi_idle_driver.name); + } else { + printk(KERN_DEBUG "ACPI: acpi_idle yielding to %s", + cpuidle_get_driver()->name); + } result = acpi_bus_register_driver(&acpi_processor_driver); if (result < 0) @@ -941,7 +947,6 @@ static int __init acpi_processor_init(void) out_cpuidle: cpuidle_unregister_driver(&acpi_idle_driver); -out_proc: #ifdef CONFIG_ACPI_PROCFS remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); #endif |