ARM: imx6: cpuidle: Use raw_spinlock_t (99ae52ed) · Commits · 戴 / test

The idle call back is invoked with disabled interrupts and requires raw_spinlock_t locks to work. Signed-off-by:

arch/arm/mach-imx/cpuidle-imx6q.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -17,22 +17,22 @@
		#include "hardware.h"

		static int num_idle_cpus = 0;
		static DEFINE_SPINLOCK(cpuidle_lock);
		static DEFINE_RAW_SPINLOCK(cpuidle_lock);

		static int imx6q_enter_wait(struct cpuidle_device *dev,
		struct cpuidle_driver *drv, int index)
		{
		spin_lock(&cpuidle_lock);
		raw_spin_lock(&cpuidle_lock);
		if (++num_idle_cpus == num_online_cpus())
		imx6_set_lpm(WAIT_UNCLOCKED);
		spin_unlock(&cpuidle_lock);
		raw_spin_unlock(&cpuidle_lock);

		cpu_do_idle();

		spin_lock(&cpuidle_lock);
		raw_spin_lock(&cpuidle_lock);
		if (num_idle_cpus-- == num_online_cpus())
		imx6_set_lpm(WAIT_CLOCKED);
		spin_unlock(&cpuidle_lock);
		raw_spin_unlock(&cpuidle_lock);

		return index;
		}