[PATCH][DOC] ppc/idle: Add documentation for powersave=off

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Update kernel-parameters.txt to add Documentation
for powersave=off.

Signed-off-by: Balbir Singh <bsingharora@xxxxxxxxx>
---
 Applies of top of linux-next 20161201

 Documentation/admin-guide/kernel-parameters.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 0a178fc..be2d6d0 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3051,6 +3051,12 @@
 			may be specified.
 			Format: <port>,<port>....
 
+	powersave=off	[PPC] This option disables power saving features.
+			It specifically disables cpuidle and sets the
+			platform machine description specific power_save
+			function to NULL. On Idle the CPU just reduces
+			execution priority.
+
 	ppc_strict_facility_enable
 			[PPC] This option catches any kernel floating point,
 			Altivec, VSX and SPE outside of regions specifically
-- 
2.9.3

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