ARM: zynq: cpuidle: Remove pointless code (18aebf11) · Commits · 戴 / test

The core is not powered down, it is pointless to call the cpu_pm notifiers and switch to the global timer. Signed-off-by:

drivers/cpuidle/cpuidle-zynq.c

+1 −9

Original line number	Diff line number	Diff line
		@@ -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",
		},