Re: [PATCH V7 7/7] powernv/cpuidle: Enable idle powernv cpu to call into the cpuidle framework.
From: Daniel Lezcano <hidden>
Date: 2013-11-06 21:11:07
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On 10/29/2013 12:02 PM, Deepthi Dharwar wrote:
This patch enables idle cpu on the powernv platform to hook on to the cpuidle framework, if available, else call on to default idle platform code. Signed-off-by: Deepthi Dharwar <redacted>
Acked-by: Daniel Lezcano <redacted>
quoted hunk ↗ jump to hunk
--- arch/powerpc/platforms/powernv/setup.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-)diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index e239dcf..42a6ba0 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c@@ -25,6 +25,7 @@ #include <linux/of.h> #include <linux/interrupt.h> #include <linux/bug.h> +#include <linux/cpuidle.h> #include <asm/machdep.h> #include <asm/firmware.h>@@ -192,6 +193,16 @@ static void __init pnv_setup_machdep_rtas(void) } #endif /* CONFIG_PPC_POWERNV_RTAS */ +void powernv_idle(void) +{ + /* Hook to cpuidle framework if available, else + * call on default platform idle code + */ + if (cpuidle_idle_call()) { + power7_idle(); + } +} + static int __init pnv_probe(void) { unsigned long root = of_get_flat_dt_root();@@ -222,7 +233,7 @@ 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,
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