ARM: zynq: cpuidle: Remove pointless code

The core is not powered down, it is pointless to call the cpu_pm notifiers and
switch to the global timer.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-and-tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/cpuidle/cpuidle-zynq.c b/drivers/cpuidle/cpuidle-zynq.c
index aded759280282b08e7fb3e9025f130240b9f6074..c61b8b2a7c77e1696f5856a0d4ddf30143f6c07d 100644 (file)
--- a/drivers/cpuidle/cpuidle-zynq.c
+++ b/drivers/cpuidle/cpuidle-zynq.c
@@ -26,7 +26,6 @@
  */
 
 #include <linux/init.h>
-#include <linux/cpu_pm.h>
 #include <linux/cpuidle.h>
 #include <linux/platform_device.h>
 #include <asm/proc-fns.h>
@@ -38,15 +37,9 @@
 static int zynq_enter_idle(struct cpuidle_device *dev,
                           struct cpuidle_driver *drv, int index)
 {
-       /* Devices must be stopped here */
-       cpu_pm_enter();
-
        /* Add code for DDR self refresh start */
        cpu_do_idle();
 
-       /* Add code for DDR self refresh stop */
-       cpu_pm_exit();
-
        return index;
 }
 
@@ -59,8 +52,7 @@ static struct cpuidle_driver zynq_idle_driver = {
                        .enter                  = zynq_enter_idle,
                        .exit_latency           = 10,
                        .target_residency       = 10000,
-                       .flags                  = CPUIDLE_FLAG_TIME_VALID |
-                                                 CPUIDLE_FLAG_TIMER_STOP,
+                       .flags                  = CPUIDLE_FLAG_TIME_VALID,
                        .name                   = "RAM_SR",
                        .desc                   = "WFI and RAM Self Refresh",
                },