[PATCH V7 7/7] powernv/cpuidle: Enable idle powernv cpu to callinto the cpuidle framework.

From: Deepthi Dharwar
Date: Tue Oct 29 2013 - 07:02:34 EST


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 <deepthi@xxxxxxxxxxxxxxxxxx>
---
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,

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/