MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer

Before putting the Loongson 2F into wait mode, suspend the MFGPT Timer and
after wake-up resume it.  This may save some power.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/706/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/mips/loongson/lemote-2f/pm.c b/arch/mips/loongson/lemote-2f/pm.c
index 81c06410aa76..d7af2e616592 100644
--- a/arch/mips/loongson/lemote-2f/pm.c
+++ b/arch/mips/loongson/lemote-2f/pm.c
@@ -22,6 +22,7 @@
 
 #include <loongson.h>
 
+#include <cs5536/cs5536_mfgpt.h>
 #include "ec_kb3310b.h"
 
 #define I8042_KBD_IRQ           1
@@ -136,3 +137,13 @@ int wakeup_loongson(void)
 
         return 0;
 }
+
+void __weak mach_suspend(void)
+{
+        disable_mfgpt0_counter();
+}
+
+void __weak mach_resume(void)
+{
+        enable_mfgpt0_counter();
+}