+++ /dev/null
-From c28b2d367da8a471482e6a4aa8337ab6369a80c2 Mon Sep 17 00:00:00 2001
-From: Russell King <rmk+kernel@arm.linux.org.uk>
-Date: Sat, 3 Oct 2015 09:13:05 +0100
-Subject: cpuidle: mvebu: indicate failure to enter deeper sleep states
-
-The cpuidle ->enter method expects the return value to be the sleep
-state we entered. Returning negative numbers or other codes is not
-permissible since coupled CPU idle was merged.
-
-At least some of the mvebu_v7_cpu_suspend() implementations return the
-value from cpu_suspend(), which returns zero if the CPU vectors back
-into the kernel via cpu_resume() (the success case), or the non-zero
-return value of the suspend actor, or one (failure cases).
-
-We do not want to be returning the failure case value back to CPU idle
-as that indicates that we successfully entered one of the deeper idle
-states. Always return zero instead, indicating that we slept for the
-shortest amount of time.
-
-Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
----
- drivers/cpuidle/cpuidle-mvebu-v7.c | 6 +++++-
- 1 file changed, 5 insertions(+), 1 deletion(-)
-
---- a/drivers/cpuidle/cpuidle-mvebu-v7.c
-+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
-@@ -39,8 +39,12 @@ static int mvebu_v7_enter_idle(struct cp
- ret = mvebu_v7_cpu_suspend(deepidle);
- cpu_pm_exit();
-
-+ /*
-+ * If we failed to enter the desired state, indicate that we
-+ * slept lightly.
-+ */
- if (ret)
-- return ret;
-+ return 0;
-
- return index;
- }