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ARM: imx6: cpuidle: Use raw_spinlock_t

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The idle call back is invoked with disabled interrupts and requires
raw_spinlock_t locks to work.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Sebastian Andrzej Siewior 2019-05-29 17:42:29 +02:00 • committed by Shawn Guo
parent a188339ca5
commit 99ae52edeb
1 changed files with 5 additions and 5 deletions
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10
arch/arm/mach-imx/cpuidle-imx6q.c
View file

@ -17,22 +17,22 @@
#include "hardware.h" #include "hardware.h"
static int num_idle_cpus = 0; 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, static int imx6q_enter_wait(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index) struct cpuidle_driver *drv, int index)
{ {
spin_lock(&cpuidle_lock); raw_spin_lock(&cpuidle_lock);
if (++num_idle_cpus == num_online_cpus()) if (++num_idle_cpus == num_online_cpus())
imx6_set_lpm(WAIT_UNCLOCKED); imx6_set_lpm(WAIT_UNCLOCKED);
spin_unlock(&cpuidle_lock); raw_spin_unlock(&cpuidle_lock);
cpu_do_idle(); cpu_do_idle();
spin_lock(&cpuidle_lock); raw_spin_lock(&cpuidle_lock);
if (num_idle_cpus-- == num_online_cpus()) if (num_idle_cpus-- == num_online_cpus())
imx6_set_lpm(WAIT_CLOCKED); imx6_set_lpm(WAIT_CLOCKED);
spin_unlock(&cpuidle_lock); raw_spin_unlock(&cpuidle_lock);
return index; return index;
} }