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authorSudeep Holla <Sudeep.Holla@arm.com>2016-07-19 18:52:56 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-07-21 23:29:38 +0200
commit220276e09bd1ccf7563b8092f7bd794336420eb1 (patch)
treed480d8d2dd714cb6e538e943e64b901bdd0f7f07 /drivers/cpuidle
parentce3ad71026b10f12b46cb88226e547be886b2251 (diff)
downloadlinux-220276e09bd1ccf7563b8092f7bd794336420eb1.tar.bz2
cpuidle: introduce CPU_PM_CPU_IDLE_ENTER macro for ARM{32, 64}
The function arm_enter_idle_state is exactly the same in both generic ARM{32,64} CPUIdle driver and will be the same even on ARM64 backend for ACPI processor idle driver. So we can unify it and move it to a common place by introducing CPU_PM_CPU_IDLE_ENTER macro that can be used in all places avoiding duplication. This is in preparation of reuse of the generic cpuidle entry function for ACPI LPI support on ARM64. Suggested-by: Rafael J. Wysocki <rjw@rjwysocki.net> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle')
-rw-r--r--drivers/cpuidle/cpuidle-arm.c26
1 files changed, 6 insertions, 20 deletions
diff --git a/drivers/cpuidle/cpuidle-arm.c b/drivers/cpuidle/cpuidle-arm.c
index e342565e8715..4ba3d3fe142f 100644
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -36,26 +36,12 @@
static int arm_enter_idle_state(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int idx)
{
- int ret;
-
- if (!idx) {
- cpu_do_idle();
- return idx;
- }
-
- ret = cpu_pm_enter();
- if (!ret) {
- /*
- * Pass idle state index to cpu_suspend which in turn will
- * call the CPU ops suspend protocol with idle index as a
- * parameter.
- */
- ret = arm_cpuidle_suspend(idx);
-
- cpu_pm_exit();
- }
-
- return ret ? -1 : idx;
+ /*
+ * Pass idle state index to arm_cpuidle_suspend which in turn
+ * will call the CPU ops suspend protocol with idle index as a
+ * parameter.
+ */
+ return CPU_PM_CPU_IDLE_ENTER(arm_cpuidle_suspend, idx);
}
static struct cpuidle_driver arm_idle_driver = {