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ARM: zynq: cpuidle: Remove pointless code

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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>
This commit is contained in:
Daniel Lezcano 2014-09-02 14:19:11 -07:00 committed by Michal Simek
parent 61ce3ed57b
commit 18aebf116b
1 changed files with 1 additions and 9 deletions
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10
drivers/cpuidle/cpuidle-zynq.c
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@ -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",
},