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authorLinus Torvalds <torvalds@linux-foundation.org>2015-07-01 14:17:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-07-01 14:17:44 -0700
commit5c3950970b91df6a15db66ec4498bac9b12f4002 (patch)
tree6d3c37a5d9c08688a9a2607336c63f566b7e9b7c /drivers/cpuidle
parent7adf12b87f45a77d364464018fb8e9e1ac875152 (diff)
parent132c242d95063f0c362597e74ee6759403a3f700 (diff)
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Merge tag 'pm+acpi-4.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki: "These are fixes that didn't make it to the previous PM+ACPI pull request or are fixing issues introduced by it. Specifics: - Fix a recently added memory leak in an error path in the ACPI resources management code (Dan Carpenter) - Fix a build warning triggered by an ACPI video header function that should be static inline (Borislav Petkov) - Change names of helper function converting struct fwnode_handle pointers to either struct device_node or struct acpi_device pointers so they don't conflict with local variable names (Alexander Sverdlin) - Make the hibernate core re-enable nonboot CPUs on failures to disable them as expected (Vitaly Kuznetsov) - Increase the default timeout of the device suspend watchdog to prevent it from triggering too early on some systems (Takashi Iwai) - Prevent the cpuidle powernv driver from registering idle states with CPUIDLE_FLAG_TIMER_STOP set if CONFIG_TICK_ONESHOT is unset which leads to boot hangs (Preeti U Murthy)" * tag 'pm+acpi-4.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: tick/idle/powerpc: Do not register idle states with CPUIDLE_FLAG_TIMER_STOP set in periodic mode PM / sleep: Increase default DPM watchdog timeout to 60 PM / hibernate: re-enable nonboot cpus on disable_nonboot_cpus() failure ACPI / OF: Rename of_node() and acpi_node() to to_of_node() and to_acpi_node() ACPI / video: Inline acpi_video_set_dmi_backlight_type ACPI / resources: free memory on error in add_region_before()
Diffstat (limited to 'drivers/cpuidle')
-rw-r--r--drivers/cpuidle/cpuidle-powernv.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 1e3ef5ec4784..845bafcfa792 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -67,6 +67,8 @@ static int nap_loop(struct cpuidle_device *dev,
return index;
}
+/* Register for fastsleep only in oneshot mode of broadcast */
+#ifdef CONFIG_TICK_ONESHOT
static int fastsleep_loop(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
@@ -90,7 +92,7 @@ static int fastsleep_loop(struct cpuidle_device *dev,
return index;
}
-
+#endif
/*
* States for dedicated partition case.
*/
@@ -216,7 +218,14 @@ static int powernv_add_idle_states(void)
powernv_states[nr_idle_states].flags = 0;
powernv_states[nr_idle_states].target_residency = 100;
powernv_states[nr_idle_states].enter = &nap_loop;
- } else if (flags[i] & OPAL_PM_SLEEP_ENABLED ||
+ }
+
+ /*
+ * All cpuidle states with CPUIDLE_FLAG_TIMER_STOP set must come
+ * within this config dependency check.
+ */
+#ifdef CONFIG_TICK_ONESHOT
+ if (flags[i] & OPAL_PM_SLEEP_ENABLED ||
flags[i] & OPAL_PM_SLEEP_ENABLED_ER1) {
/* Add FASTSLEEP state */
strcpy(powernv_states[nr_idle_states].name, "FastSleep");
@@ -225,7 +234,7 @@ static int powernv_add_idle_states(void)
powernv_states[nr_idle_states].target_residency = 300000;
powernv_states[nr_idle_states].enter = &fastsleep_loop;
}
-
+#endif
powernv_states[nr_idle_states].exit_latency =
((unsigned int)latency_ns[i]) / 1000;