[PATCH] Documentation: add ABI entry for intel_pstate

[Ramkumar Ramachandra]

Add a Documentation/ABI entry for
/sys/devices/system/cpu/intel_pstate/max_perf_pct,
/sys/devices/system/cpu/intel_pstate/min_perf_pct, and
/sys/devices/system/cpu/intel_pstate/no_turbo.

Cc: Dirk Brandewie <dirk.brandewie@xxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxxxxxxxx>
Cc: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Linux PM <linux-pm@xxxxxxxxxxxxxxx>
Signed-off-by: Ramkumar Ramachandra <artagnon@xxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-devices-system-cpu | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 468e4d4..7080718 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -200,3 +200,18 @@ Description:	address and size of the percpu note.
 		note of cpu#.
 
 		crash_notes_size: size of the note of cpu#.
+
+
+What:		/sys/devices/system/cpu/intel_pstate/max_perf_pct
+		/sys/devices/system/cpu/intel_pstate/min_perf_pct
+		/sys/devices/system/cpu/intel_pstate/no_turbo
+Date:		February 2013
+Contact:	linux-pm@xxxxxxxxxxxxxxx
+Description:	Parameters for the Intel P-state driver
+
+		Logic for selecting the current P-state in Intel
+		Sandybridge+ processors. The three knobs control
+		limits for the P-state that will be requested by the
+		driver.
+
+		More details can be found in Documentation/cpu-freq/intel-pstate.txt
-- 
1.8.5.2.227.g53f3478

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