Merge tag 'pm-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael J Wysocki:

 - Improved system suspend/resume and runtime PM handling for the SH
   TMU, CMT and MTU2 clock event devices (also used by ARM/shmobile).

 - Generic PM domains framework extensions related to cpuidle support
   and domain objects lookup using names.

 - ARM/shmobile power management updates including improved support for
   the SH7372's A4S power domain containing the CPU core.

 - cpufreq changes related to AMD CPUs support from Matthew Garrett,
   Andre Przywara and Borislav Petkov.

 - cpu0 cpufreq driver from Shawn Guo.

 - cpufreq governor fixes related to the relaxing of limit from Michal
   Pecio.

 - OMAP cpufreq updates from Axel Lin and Richard Zhao.

 - cpuidle ladder governor fixes related to the disabling of states from
   Carsten Emde and me.

 - Runtime PM core updates related to the interactions with the system
   suspend core from Alan Stern and Kevin Hilman.

 - Wakeup sources modification allowing more helper functions to be
   called from interrupt context from John Stultz and additional
   diagnostic code from Todd Poynor.

 - System suspend error code path fix from Feng Hong.

Fixed up conflicts in cpufreq/powernow-k8 that stemmed from the
workqueue fixes conflicting fairly badly with the removal of support for
hardware P-state chips.  The changes were independent but somewhat
intertwined.

* tag 'pm-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
  Revert "PM QoS: Use spinlock in the per-device PM QoS constraints code"
  PM / Runtime: let rpm_resume() succeed if RPM_ACTIVE, even when disabled, v2
  cpuidle: rename function name "__cpuidle_register_driver", v2
  cpufreq: OMAP: Check IS_ERR() instead of NULL for omap_device_get_by_hwmod_name
  cpuidle: remove some empty lines
  PM: Prevent runtime suspend during system resume
  PM QoS: Use spinlock in the per-device PM QoS constraints code
  PM / Sleep: use resume event when call dpm_resume_early
  cpuidle / ACPI : move cpuidle_device field out of the acpi_processor_power structure
  ACPI / processor: remove pointless variable initialization
  ACPI / processor: remove unused function parameter
  cpufreq: OMAP: remove loops_per_jiffy recalculate for smp
  sections: fix section conflicts in drivers/cpufreq
  cpufreq: conservative: update frequency when limits are relaxed
  cpufreq / ondemand: update frequency when limits are relaxed
  properly __init-annotate pm_sysrq_init()
  cpufreq: Add a generic cpufreq-cpu0 driver
  PM / OPP: Initialize OPP table from device tree
  ARM: add cpufreq transiton notifier to adjust loops_per_jiffy for smp
  cpufreq: Remove support for hardware P-state chips from powernow-k8
  ...

1 files changed, 2 insertions, 37 deletions

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index b47034e650a5..65f8e9a54975 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -40,16 +40,6 @@
 /* OPP tolerance in percentage */
 #define OPP_TOLERANCE   4
 
-#ifdef CONFIG_SMP
-struct lpj_info {
-        unsigned long   ref;
-        unsigned int    freq;
-};
-
-static DEFINE_PER_CPU(struct lpj_info, lpj_ref);
-static struct lpj_info global_lpj_ref;
-#endif
-
 static struct cpufreq_frequency_table *freq_table;
 static atomic_t freq_table_users = ATOMIC_INIT(0);
 static struct clk *mpu_clk;
@@ -161,31 +151,6 @@ static int omap_target(struct cpufreq_policy *policy,
         }
 
         freqs.new = omap_getspeed(policy->cpu);
-#ifdef CONFIG_SMP
-        /*
-         * Note that loops_per_jiffy is not updated on SMP systems in
-         * cpufreq driver. So, update the per-CPU loops_per_jiffy value
-         * on frequency transition. We need to update all dependent CPUs.
-         */
-        for_each_cpu(i, policy->cpus) {
-                struct lpj_info *lpj = &per_cpu(lpj_ref, i);
-                if (!lpj->freq) {
-                        lpj->ref = per_cpu(cpu_data, i).loops_per_jiffy;
-                        lpj->freq = freqs.old;
-                }
-
-                per_cpu(cpu_data, i).loops_per_jiffy =
-                        cpufreq_scale(lpj->ref, lpj->freq, freqs.new);
-        }
-
-        /* And don't forget to adjust the global one */
-        if (!global_lpj_ref.freq) {
-                global_lpj_ref.ref = loops_per_jiffy;
-                global_lpj_ref.freq = freqs.old;
-        }
-        loops_per_jiffy = cpufreq_scale(global_lpj_ref.ref, global_lpj_ref.freq,
-                                        freqs.new);
-#endif
 
 done:
         /* notifiers */
@@ -301,9 +266,9 @@ static int __init omap_cpufreq_init(void)
         }
 
         mpu_dev = omap_device_get_by_hwmod_name("mpu");
-        if (!mpu_dev) {
+        if (IS_ERR(mpu_dev)) {
                 pr_warning("%s: unable to get the mpu device\n", __func__);
-                return -EINVAL;
+                return PTR_ERR(mpu_dev);
         }
 
         mpu_reg = regulator_get(mpu_dev, "vcc");