Merge tag 'pm-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix RTC wakeup from suspend-to-idle broken recently, fix CPU
  idleness detection condition in the schedutil cpufreq governor, fix a
  cpufreq driver build failure, fix an error code path in the power
  capping framework, clean up the hibernate core and update the
  intel_pstate documentation.

  Specifics:

   - Fix RTC wakeup from suspend-to-idle broken by the recent rework of
     ACPI wakeup handling (Rafael Wysocki).

   - Update intel_pstate driver documentation to reflect the current
     code and explain how it works in more detail (Rafael Wysocki).

   - Fix an issue related to CPU idleness detection on systems with
     shared cpufreq policies in the schedutil governor (Juri Lelli).

   - Fix a possible build issue in the dbx500 cpufreq driver (Arnd
     Bergmann).

   - Fix a function in the power capping framework core to return an
     error code instead of 0 when there's an error (Dan Carpenter).

   - Clean up variable definition in the hibernation core (Pushkar
     Jambhlekar)"

* tag 'pm-4.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: dbx500: add a Kconfig symbol
  PM / hibernate: Declare variables as static
  PowerCap: Fix an error code in powercap_register_zone()
  RTC: rtc-cmos: Fix wakeup from suspend-to-idle
  PM / wakeup: Fix up wakeup_source_report_event()
  cpufreq: intel_pstate: Document the current behavior and user interface
  cpufreq: schedutil: use now as reference when aggregating shared policy requests

5 files changed, 17 insertions, 8 deletions

diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index f62082fdd670..9c36b27996fc 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -512,13 +512,12 @@ static bool wakeup_source_not_registered(struct wakeup_source *ws)
 /**
  * wakup_source_activate - Mark given wakeup source as active.
  * @ws: Wakeup source to handle.
- * @hard: If set, abort suspends in progress and wake up from suspend-to-idle.
  *
  * Update the @ws' statistics and, if @ws has just been activated, notify the PM
  * core of the event by incrementing the counter of of wakeup events being
  * processed.
  */
-static void wakeup_source_activate(struct wakeup_source *ws, bool hard)
+static void wakeup_source_activate(struct wakeup_source *ws)
 {
 	unsigned int cec;
 
@@ -526,9 +525,6 @@ static void wakeup_source_activate(struct wakeup_source *ws, bool hard)
 			"unregistered wakeup source\n"))
 		return;
 
-	if (hard)
-		pm_system_wakeup();
-
 	ws->active = true;
 	ws->active_count++;
 	ws->last_time = ktime_get();
@@ -554,7 +550,10 @@ static void wakeup_source_report_event(struct wakeup_source *ws, bool hard)
 		ws->wakeup_count++;
 
 	if (!ws->active)
-		wakeup_source_activate(ws, hard);
+		wakeup_source_activate(ws);
+
+	if (hard)
+		pm_system_wakeup();
 }
 
 /**
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 74ed7e9a7f27..2011fec2d6ad 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -71,6 +71,15 @@ config ARM_HIGHBANK_CPUFREQ
 
 	  If in doubt, say N.
 
+config ARM_DB8500_CPUFREQ
+	tristate "ST-Ericsson DB8500 cpufreq" if COMPILE_TEST && !ARCH_U8500
+	default ARCH_U8500
+	depends on HAS_IOMEM
+	depends on !CPU_THERMAL || THERMAL
+	help
+	  This adds the CPUFreq driver for ST-Ericsson Ux500 (DB8500) SoC
+	  series.
+
 config ARM_IMX6Q_CPUFREQ
 	tristate "Freescale i.MX6 cpufreq support"
 	depends on ARCH_MXC
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index b7e78f063c4f..ab3a42cd29ef 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -53,7 +53,7 @@ obj-$(CONFIG_ARM_DT_BL_CPUFREQ)		+= arm_big_little_dt.o
 
 obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ)	+= brcmstb-avs-cpufreq.o
 obj-$(CONFIG_ARCH_DAVINCI)		+= davinci-cpufreq.o
-obj-$(CONFIG_UX500_SOC_DB8500)		+= dbx500-cpufreq.o
+obj-$(CONFIG_ARM_DB8500_CPUFREQ)	+= dbx500-cpufreq.o
 obj-$(CONFIG_ARM_EXYNOS5440_CPUFREQ)	+= exynos5440-cpufreq.o
 obj-$(CONFIG_ARM_HIGHBANK_CPUFREQ)	+= highbank-cpufreq.o
 obj-$(CONFIG_ARM_IMX6Q_CPUFREQ)		+= imx6q-cpufreq.o
diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index 14bde0db8c24..5b10b50f8686 100644
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -538,6 +538,7 @@ struct powercap_zone *powercap_register_zone(
 
 	power_zone->id = result;
 	idr_init(&power_zone->idr);
+	result = -ENOMEM;
 	power_zone->name = kstrdup(name, GFP_KERNEL);
 	if (!power_zone->name)
 		goto err_name_alloc;
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index b3de973a6260..9dca53df3584 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -1088,7 +1088,7 @@ static u32 rtc_handler(void *context)
 	}
 	spin_unlock_irqrestore(&rtc_lock, flags);
 
-	pm_wakeup_event(dev, 0);
+	pm_wakeup_hard_event(dev);
 	acpi_clear_event(ACPI_EVENT_RTC);
 	acpi_disable_event(ACPI_EVENT_RTC, 0);
 	return ACPI_INTERRUPT_HANDLED;