Merge tag 'pm+acpi-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI and power management updates from Rafael Wysocki:

 - Rework of the ACPI namespace scanning code from Rafael J.  Wysocki
   with contributions from Bjorn Helgaas, Jiang Liu, Mika Westerberg,
   Toshi Kani, and Yinghai Lu.

 - ACPI power resources handling and ACPI device PM update from Rafael
   J Wysocki.

 - ACPICA update to version 20130117 from Bob Moore and Lv Zheng with
   contributions from Aaron Lu, Chao Guan, Jesper Juhl, and Tim Gardner.

 - Support for Intel Lynxpoint LPSS from Mika Westerberg.

 - cpuidle update from Len Brown including Intel Haswell support, C1
   state for intel_idle, removal of global pm_idle.

 - cpuidle fixes and cleanups from Daniel Lezcano.

 - cpufreq fixes and cleanups from Viresh Kumar and Fabio Baltieri with
   contributions from Stratos Karafotis and Rickard Andersson.

 - Intel P-states driver for Sandy Bridge processors from Dirk
   Brandewie.

 - cpufreq driver for Marvell Kirkwood SoCs from Andrew Lunn.

 - cpufreq fixes related to ordering issues between acpi-cpufreq and
   powernow-k8 from Borislav Petkov and Matthew Garrett.

 - cpufreq support for Calxeda Highbank processors from Mark Langsdorf
   and Rob Herring.

 - cpufreq driver for the Freescale i.MX6Q SoC and cpufreq-cpu0 update
   from Shawn Guo.

 - cpufreq Exynos fixes and cleanups from Jonghwan Choi, Sachin Kamat,
   and Inderpal Singh.

 - Support for "lightweight suspend" from Zhang Rui.

 - Removal of the deprecated power trace API from Paul Gortmaker.

 - Assorted updates from Andreas Fleig, Colin Ian King, Davidlohr Bueso,
   Joseph Salisbury, Kees Cook, Li Fei, Nishanth Menon, ShuoX Liu,
   Srinivas Pandruvada, Tejun Heo, Thomas Renninger, and Yasuaki
   Ishimatsu.

* tag 'pm+acpi-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (267 commits)
  PM idle: remove global declaration of pm_idle
  unicore32 idle: delete stray pm_idle comment
  openrisc idle: delete pm_idle
  mn10300 idle: delete pm_idle
  microblaze idle: delete pm_idle
  m32r idle: delete pm_idle, and other dead idle code
  ia64 idle: delete pm_idle
  cris idle: delete idle and pm_idle
  ARM64 idle: delete pm_idle
  ARM idle: delete pm_idle
  blackfin idle: delete pm_idle
  sparc idle: rename pm_idle to sparc_idle
  sh idle: rename global pm_idle to static sh_idle
  x86 idle: rename global pm_idle to static x86_idle
  APM idle: register apm_cpu_idle via cpuidle
  cpufreq / intel_pstate: Add kernel command line option disable intel_pstate.
  cpufreq / intel_pstate: Change to disallow module build
  tools/power turbostat: display SMI count by default
  intel_idle: export both C1 and C1E
  ACPI / hotplug: Fix concurrency issues and memory leaks
  ...

8 files changed, 79 insertions, 109 deletions

diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
index 5927a8df562..6aad34ad951 100644
--- a/arch/arm/boot/dts/highbank.dts
+++ b/arch/arm/boot/dts/highbank.dts
@@ -37,6 +37,16 @@
 			next-level-cache = <&L2>;
 			clocks = <&a9pll>;
 			clock-names = "cpu";
+			operating-points = <
+				/* kHz    ignored */
+				 1300000  1000000
+				 1200000  1000000
+				 1100000  1000000
+				  800000  1000000
+				  400000  1000000
+				  200000  1000000
+			>;
+			clock-latency = <100000>;
 		};
 
 		cpu@901 {
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index c6dec5fc20a..047d3e40e47 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -172,14 +172,9 @@ static void default_idle(void)
 	local_irq_enable();
 }
 
-void (*pm_idle)(void) = default_idle;
-EXPORT_SYMBOL(pm_idle);
-
 /*
- * The idle thread, has rather strange semantics for calling pm_idle,
- * but this is what x86 does and we need to do the same, so that
- * things like cpuidle get called in the same way.  The only difference
- * is that we always respect 'hlt_counter' to prevent low power idle.
+ * The idle thread.
+ * We always respect 'hlt_counter' to prevent low power idle.
  */
 void cpu_idle(void)
 {
@@ -210,10 +205,10 @@ void cpu_idle(void)
 			} else if (!need_resched()) {
 				stop_critical_timings();
 				if (cpuidle_idle_call())
-					pm_idle();
+					default_idle();
 				start_critical_timings();
 				/*
-				 * pm_idle functions must always
+				 * default_idle functions must always
 				 * return with IRQs enabled.
 				 */
 				WARN_ON(irqs_disabled());
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index 49f335d301b..ae0c7bb39ae 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -31,7 +31,6 @@ static void __iomem *twd_base;
 
 static struct clk *twd_clk;
 static unsigned long twd_timer_rate;
-static bool common_setup_called;
 static DEFINE_PER_CPU(bool, percpu_setup_called);
 
 static struct clock_event_device __percpu **twd_evt;
@@ -239,25 +238,28 @@ static irqreturn_t twd_handler(int irq, void *dev_id)
 	return IRQ_NONE;
 }
 
-static struct clk *twd_get_clock(void)
+static void twd_get_clock(struct device_node *np)
 {
-	struct clk *clk;
 	int err;
 
-	clk = clk_get_sys("smp_twd", NULL);
-	if (IS_ERR(clk)) {
-		pr_err("smp_twd: clock not found: %d\n", (int)PTR_ERR(clk));
-		return clk;
+	if (np)
+		twd_clk = of_clk_get(np, 0);
+	else
+		twd_clk = clk_get_sys("smp_twd", NULL);
+
+	if (IS_ERR(twd_clk)) {
+		pr_err("smp_twd: clock not found %d\n", (int) PTR_ERR(twd_clk));
+		return;
 	}
 
-	err = clk_prepare_enable(clk);
+	err = clk_prepare_enable(twd_clk);
 	if (err) {
 		pr_err("smp_twd: clock failed to prepare+enable: %d\n", err);
-		clk_put(clk);
-		return ERR_PTR(err);
+		clk_put(twd_clk);
+		return;
 	}
 
-	return clk;
+	twd_timer_rate = clk_get_rate(twd_clk);
 }
 
 /*
@@ -280,26 +282,7 @@ static int __cpuinit twd_timer_setup(struct clock_event_device *clk)
 	}
 	per_cpu(percpu_setup_called, cpu) = true;
 
-	/*
-	 * This stuff only need to be done once for the entire TWD cluster
-	 * during the runtime of the system.
-	 */
-	if (!common_setup_called) {
-		twd_clk = twd_get_clock();
-
-		/*
-		 * We use IS_ERR_OR_NULL() here, because if the clock stubs
-		 * are active we will get a valid clk reference which is
-		 * however NULL and will return the rate 0. In that case we
-		 * need to calibrate the rate instead.
-		 */
-		if (!IS_ERR_OR_NULL(twd_clk))
-			twd_timer_rate = clk_get_rate(twd_clk);
-		else
-			twd_calibrate_rate();
-
-		common_setup_called = true;
-	}
+	twd_calibrate_rate();
 
 	/*
 	 * The following is done once per CPU the first time .setup() is
@@ -330,7 +313,7 @@ static struct local_timer_ops twd_lt_ops __cpuinitdata = {
 	.stop	= twd_timer_stop,
 };
 
-static int __init twd_local_timer_common_register(void)
+static int __init twd_local_timer_common_register(struct device_node *np)
 {
 	int err;
 
@@ -350,6 +333,8 @@ static int __init twd_local_timer_common_register(void)
 	if (err)
 		goto out_irq;
 
+	twd_get_clock(np);
+
 	return 0;
 
 out_irq:
@@ -373,7 +358,7 @@ int __init twd_local_timer_register(struct twd_local_timer *tlt)
 	if (!twd_base)
 		return -ENOMEM;
 
-	return twd_local_timer_common_register();
+	return twd_local_timer_common_register(NULL);
 }
 
 #ifdef CONFIG_OF
@@ -405,7 +390,7 @@ void __init twd_local_timer_of_register(void)
 		goto out;
 	}
 
-	err = twd_local_timer_common_register();
+	err = twd_local_timer_common_register(np);
 
 out:
 	WARN(err, "twd_local_timer_of_register failed (%d)\n", err);
diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c
index 9107691adbd..5ac9e9384b1 100644
--- a/arch/arm/mach-davinci/cpuidle.c
+++ b/arch/arm/mach-davinci/cpuidle.c
@@ -25,35 +25,44 @@
 
 #define DAVINCI_CPUIDLE_MAX_STATES	2
 
-struct davinci_ops {
-	void (*enter) (u32 flags);
-	void (*exit) (u32 flags);
-	u32 flags;
-};
+static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device);
+static void __iomem *ddr2_reg_base;
+static bool ddr2_pdown;
+
+static void davinci_save_ddr_power(int enter, bool pdown)
+{
+	u32 val;
+
+	val = __raw_readl(ddr2_reg_base + DDR2_SDRCR_OFFSET);
+
+	if (enter) {
+		if (pdown)
+			val |= DDR2_SRPD_BIT;
+		else
+			val &= ~DDR2_SRPD_BIT;
+		val |= DDR2_LPMODEN_BIT;
+	} else {
+		val &= ~(DDR2_SRPD_BIT | DDR2_LPMODEN_BIT);
+	}
+
+	__raw_writel(val, ddr2_reg_base + DDR2_SDRCR_OFFSET);
+}
 
 /* Actual code that puts the SoC in different idle states */
 static int davinci_enter_idle(struct cpuidle_device *dev,
 				struct cpuidle_driver *drv,
 						int index)
 {
-	struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
-	struct davinci_ops *ops = cpuidle_get_statedata(state_usage);
-
-	if (ops && ops->enter)
-		ops->enter(ops->flags);
+	davinci_save_ddr_power(1, ddr2_pdown);
 
 	index = cpuidle_wrap_enter(dev,	drv, index,
 				arm_cpuidle_simple_enter);
 
-	if (ops && ops->exit)
-		ops->exit(ops->flags);
+	davinci_save_ddr_power(0, ddr2_pdown);
 
 	return index;
 }
 
-/* fields in davinci_ops.flags */
-#define DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN	BIT(0)
-
 static struct cpuidle_driver davinci_idle_driver = {
 	.name			= "cpuidle-davinci",
 	.owner			= THIS_MODULE,
@@ -70,45 +79,6 @@ static struct cpuidle_driver davinci_idle_driver = {
 	.state_count = DAVINCI_CPUIDLE_MAX_STATES,
 };
 
-static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device);
-static void __iomem *ddr2_reg_base;
-
-static void davinci_save_ddr_power(int enter, bool pdown)
-{
-	u32 val;
-
-	val = __raw_readl(ddr2_reg_base + DDR2_SDRCR_OFFSET);
-
-	if (enter) {
-		if (pdown)
-			val |= DDR2_SRPD_BIT;
-		else
-			val &= ~DDR2_SRPD_BIT;
-		val |= DDR2_LPMODEN_BIT;
-	} else {
-		val &= ~(DDR2_SRPD_BIT | DDR2_LPMODEN_BIT);
-	}
-
-	__raw_writel(val, ddr2_reg_base + DDR2_SDRCR_OFFSET);
-}
-
-static void davinci_c2state_enter(u32 flags)
-{
-	davinci_save_ddr_power(1, !!(flags & DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN));
-}
-
-static void davinci_c2state_exit(u32 flags)
-{
-	davinci_save_ddr_power(0, !!(flags & DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN));
-}
-
-static struct davinci_ops davinci_states[DAVINCI_CPUIDLE_MAX_STATES] = {
-	[1] = {
-		.enter	= davinci_c2state_enter,
-		.exit	= davinci_c2state_exit,
-	},
-};
-
 static int __init davinci_cpuidle_probe(struct platform_device *pdev)
 {
 	int ret;
@@ -124,11 +94,7 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev)
 
 	ddr2_reg_base = pdata->ddr2_ctlr_base;
 
-	if (pdata->ddr2_pdown)
-		davinci_states[1].flags |= DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN;
-	cpuidle_set_statedata(&device->states_usage[1], &davinci_states[1]);
-
-	device->state_count = DAVINCI_CPUIDLE_MAX_STATES;
+	ddr2_pdown = pdata->ddr2_pdown;
 
 	ret = cpuidle_register_driver(&davinci_idle_driver);
 	if (ret) {
diff --git a/arch/arm/mach-exynos/include/mach/cpufreq.h b/arch/arm/mach-exynos/include/mach/cpufreq.h
index 7517c3f417a..b5d39dd03b2 100644
--- a/arch/arm/mach-exynos/include/mach/cpufreq.h
+++ b/arch/arm/mach-exynos/include/mach/cpufreq.h
@@ -18,12 +18,25 @@ enum cpufreq_level_index {
 	L20,
 };
 
+#define APLL_FREQ(f, a0, a1, a2, a3, a4, a5, a6, a7, b0, b1, b2, m, p, s) \
+	{ \
+		.freq = (f) * 1000, \
+		.clk_div_cpu0 = ((a0) | (a1) << 4 | (a2) << 8 | (a3) << 12 | \
+			(a4) << 16 | (a5) << 20 | (a6) << 24 | (a7) << 28), \
+		.clk_div_cpu1 = (b0 << 0 | b1 << 4 | b2 << 8), \
+		.mps = ((m) << 16 | (p) << 8 | (s)), \
+	}
+
+struct apll_freq {
+	unsigned int freq;
+	u32 clk_div_cpu0;
+	u32 clk_div_cpu1;
+	u32 mps;
+};
+
 struct exynos_dvfs_info {
 	unsigned long	mpll_freq_khz;
 	unsigned int	pll_safe_idx;
-	unsigned int	pm_lock_idx;
-	unsigned int	max_support_idx;
-	unsigned int	min_support_idx;
 	struct clk	*cpu_clk;
 	unsigned int	*volt_table;
 	struct cpufreq_frequency_table	*freq_table;
diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 551c97e87a7..44b12f9c158 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -1,5 +1,7 @@
 config ARCH_HIGHBANK
 	bool "Calxeda ECX-1000/2000 (Highbank/Midway)" if ARCH_MULTI_V7
+	select ARCH_HAS_CPUFREQ
+	select ARCH_HAS_OPP
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_AMBA
 	select ARM_GIC
@@ -11,5 +13,7 @@ config ARCH_HIGHBANK
 	select GENERIC_CLOCKEVENTS
 	select HAVE_ARM_SCU
 	select HAVE_SMP
+	select MAILBOX
+	select PL320_MBOX
 	select SPARSE_IRQ
 	select USE_OF
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 7be3622cfc8..2d93d8b2383 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -351,12 +351,10 @@ static void omap3_pm_idle(void)
 	if (omap_irq_pending())
 		goto out;
 
-	trace_power_start(POWER_CSTATE, 1, smp_processor_id());
 	trace_cpu_idle(1, smp_processor_id());
 
 	omap_sram_idle();
 
-	trace_power_end(smp_processor_id());
 	trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
 
 out:
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index a74d3c7d2e2..a36a03d3c9a 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -243,8 +243,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 	/* FIXME: what's the actual transition time? */
 	policy->cpuinfo.transition_latency = 300 * 1000;
 
-	policy->shared_type = CPUFREQ_SHARED_TYPE_ALL;
-	cpumask_copy(policy->related_cpus, cpu_possible_mask);
+	cpumask_copy(policy->cpus, cpu_possible_mask);
 
 	if (policy->cpu == 0)
 		register_pm_notifier(&tegra_cpu_pm_notifier);