From 29d181229281df5b628c7ebdbe00bd1dc0ac53b9 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 14 Nov 2016 13:06:05 +1100
Subject: [PATCH] cpu: Don't enable nap mode/PM mode on non-P8

We don't support it yet on others.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
---
 core/cpu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/cpu.c b/core/cpu.c
index bad21ab52f80..62140eb9c64f 100644
--- a/core/cpu.c
+++ b/core/cpu.c
@@ -355,6 +355,9 @@ void cpu_set_pm_enable(bool enabled)
 	prlog(PR_INFO, "CPU: %sing power management\n",
 	      enabled ? "enabl" : "disabl");
 
+	if (proc_gen != proc_gen_p8)
+		return;
+
 	pm_enabled = enabled;
 
 	if (enabled)