Re: [PATCH v3 4/9] powerpc/powernv: Make power7_powersave_common more generic

power7_powersave_common does common steps needed before entering idle
state and eventually changes MSR to MSR_IDLE and does rfid to
power7_enter_nap_mode.

Move the updation of HSTATE_HWTHREAD_STATE to power7_powersave_common
from power7_enter_nap_mode and make it more generic by passing the rfid
address as a function parameter.

Also make function name more generic.

Reviewed-by: Gautham R. Shenoy <redacted>
Signed-off-by: Shreyas B. Prabhu <redacted>
---
Changes in v3:
==============
 - Moved HSTATE_HWTHREAD_STATE updation to power_powersave_common

 arch/powerpc/kernel/idle_power_common.S | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/arch/powerpc/kernel/idle_power_common.S b/arch/powerpc/kernel/idle_power_common.S
index 973c9a1..d100577 100644
--- a/arch/powerpc/kernel/idle_power_common.S
+++ b/arch/powerpc/kernel/idle_power_common.S

@@ -74,8 +74,10 @@ core_idle_lock_held:
  * To check IRQ_HAPPENED in r4
  * 	0 - don't check
  * 	1 - check
+ *
+ * Address to 'rfid' to in r5
  */
-_GLOBAL(power7_powersave_common)
+_GLOBAL(pnv_powersave_common)