diff options
| author | Deepthi Dharwar <deepthi@linux.vnet.ibm.com> | 2014-01-14 16:32:40 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-01-29 17:02:24 +1100 |
| commit | 2c2e6ecfd077cbae72d32568af58c4ba57826c84 (patch) | |
| tree | f46be303b75ef724a47fea4d9bb58bea9e1b4e71 /arch/powerpc | |
| parent | 3fa8cad82b94d0bed002571bd246f2299ffc876b (diff) | |
powerpc/powernv/cpuidle: Back-end cpuidle driver for powernv platform.
Following patch ports the cpuidle framework for powernv
platform and also implements a cpuidle back-end powernv
idle driver calling on to power7_nap and snooze idle states.
Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/powernv/setup.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index a932feb2901c..21166f65c97c 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -26,6 +26,7 @@ #include <linux/of_fdt.h> #include <linux/interrupt.h> #include <linux/bug.h> +#include <linux/cpuidle.h> #include <asm/machdep.h> #include <asm/firmware.h> @@ -216,6 +217,16 @@ static int __init pnv_probe(void) return 1; } +void powernv_idle(void) +{ + /* Hook to cpuidle framework if available, else + * call on default platform idle code + */ + if (cpuidle_idle_call()) { + power7_idle(); + } +} + define_machine(powernv) { .name = "PowerNV", .probe = pnv_probe, @@ -225,7 +236,7 @@ define_machine(powernv) { .show_cpuinfo = pnv_show_cpuinfo, .progress = pnv_progress, .machine_shutdown = pnv_shutdown, - .power_save = power7_idle, + .power_save = powernv_idle, .calibrate_decr = generic_calibrate_decr, #ifdef CONFIG_KEXEC .kexec_cpu_down = pnv_kexec_cpu_down, |