blackfin: mach-bf609: pm: cleanup bfin_deepsleep

In bfin_deepsleep(), using register instead of local variable and remove
unused dpmc register read.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

1 files changed, 7 insertions, 8 deletions

diff --git a/arch/blackfin/mach-bf609/pm.c b/arch/blackfin/mach-bf609/pm.c
index 849d77e5631c..df3b9b973f62 100644
--- a/arch/blackfin/mach-bf609/pm.c
+++ b/arch/blackfin/mach-bf609/pm.c
@@ -138,7 +138,6 @@ void bfin_deepsleep(unsigned long mask)
 
         bfin_write32(DPM0_WAKE_EN, 0x10);
         bfin_write32(DPM0_WAKE_POL, 0x10);
-        dpm0_ctl = bfin_read32(DPM0_CTL);
         dpm0_ctl = 0x00000008;
         bfin_write32(DPM0_CTL, dpm0_ctl);
         SSYNC();
@@ -149,13 +148,13 @@ void bfin_deepsleep(unsigned long mask)
                         );
 #ifdef CONFIG_BFIN_PM_WAKEUP_TIME_BENCH
         __asm__ __volatile__(
-                "%0 = 0;"
-                "CYCLES = %0;"
-                "CYCLES2 = %0;"
-                "%0 = SYSCFG;"
-                "BITSET(%0, 1);"
-                "SYSCFG = %0;"
-                : "=d,a" (dpm0_ctl) :
+                "R0 = 0;"
+                "CYCLES = R0;"
+                "CYCLES2 = R0;"
+                "R0 = SYSCFG;"
+                "BITSET(R0, 1);"
+                "SYSCFG = R0;"
+                : : : "R0"
         );
 #endif