Messages in this thread Patch in this message | | | Date | Thu, 27 Aug 2009 17:25:36 +0530 | From | Arun R Bharadwaj <> | Subject | [PATCH 3/4]: ACPI/ARM: Register for cpuidle_pm_idle in drivers/acpi/processor_idle.c and arch/arm/mach-kirkwood/cpuidle.c |
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* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-08-27 17:19:08]:
Set the idle routine to cpuidle_pm_idle after registering cpuidle devices. Earlier pm_idle was assumed as the defualt idle loop by cpuidle infrastructure. This is changed to an architecture independent cpuidle_pm_idle.
There are 2 instances which are using cpuidle infrastructure currently. This patch makes the change in both the places.
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com> --- arch/arm/mach-kirkwood/cpuidle.c | 6 ++++++ drivers/acpi/processor_idle.c | 5 +++++ 2 files changed, 11 insertions(+)
Index: linux.trees.git/arch/arm/mach-kirkwood/cpuidle.c =================================================================== --- linux.trees.git.orig/arch/arm/mach-kirkwood/cpuidle.c +++ linux.trees.git/arch/arm/mach-kirkwood/cpuidle.c @@ -90,6 +90,12 @@ static int kirkwood_init_cpuidle(void) printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n"); return -EIO; } + + if (pm_idle != cpuidle_pm_idle) { + printk(KERN_INFO "using cpuidle idle loop\n"); + pm_idle = cpuidle_pm_idle; + } + return 0; } Index: linux.trees.git/drivers/acpi/processor_idle.c =================================================================== --- linux.trees.git.orig/drivers/acpi/processor_idle.c +++ linux.trees.git/drivers/acpi/processor_idle.c @@ -1216,6 +1216,11 @@ int __cpuinit acpi_processor_power_init( printk(" C%d[C%d]", i, pr->power.states[i].type); printk(")\n"); + + if (pm_idle != cpuidle_pm_idle) { + printk(KERN_INFO "using cpuidle idle loop\n"); + pm_idle = cpuidle_pm_idle; + } } /* 'power' [R] */
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