diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt
index 4733f76cbe48..9b387f861aed 100644
--- a/Documentation/devicetree/bindings/power/power_domain.txt
+++ b/Documentation/devicetree/bindings/power/power_domain.txt
@@ -111,8 +111,8 @@ Example 3:
 ==PM domain consumers==
 
 Required properties:
- - power-domains : A phandle and PM domain specifier as defined by bindings of
-                   the power controller specified by phandle.
+ - power-domains : A list of PM domain specifiers, as defined by bindings of
+		the power controller that is the PM domain provider.
 
 Example:
 
@@ -122,9 +122,18 @@ Example:
 		power-domains = <&power 0>;
 	};
 
-The node above defines a typical PM domain consumer device, which is located
-inside a PM domain with index 0 of a power controller represented by a node
-with the label "power".
+	leaky-device@12351000 {
+		compatible = "foo,i-leak-current";
+		reg = <0x12351000 0x1000>;
+		power-domains = <&power 0>, <&power 1> ;
+	};
+
+The first example above defines a typical PM domain consumer device, which is
+located inside a PM domain with index 0 of a power controller represented by a
+node with the label "power".
+In the second example the consumer device are partitioned across two PM domains,
+the first with index 0 and the second with index 1, of a power controller that
+is represented by a node with the label "power.
 
 Optional properties:
 - required-opps: This contains phandle to an OPP node in another device's OPP
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index fb4e2df68d95..1435d7281c66 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -580,7 +580,7 @@ int driver_probe_device(struct device_driver *drv, struct device *dev)
 	pr_debug("bus: '%s': %s: matched device %s with driver %s\n",
 		 drv->bus->name, __func__, dev_name(dev), drv->name);
 
-	pm_runtime_resume_suppliers(dev);
+	pm_runtime_get_suppliers(dev);
 	if (dev->parent)
 		pm_runtime_get_sync(dev->parent);
 
@@ -591,6 +591,7 @@ int driver_probe_device(struct device_driver *drv, struct device *dev)
 	if (dev->parent)
 		pm_runtime_put(dev->parent);
 
+	pm_runtime_put_suppliers(dev);
 	return ret;
 }
 
diff --git a/drivers/base/power/common.c b/drivers/base/power/common.c
index 7ae62b6355b8..df41b4780b3b 100644
--- a/drivers/base/power/common.c
+++ b/drivers/base/power/common.c
@@ -116,14 +116,51 @@ int dev_pm_domain_attach(struct device *dev, bool power_on)
 }
 EXPORT_SYMBOL_GPL(dev_pm_domain_attach);
 
+/**
+ * dev_pm_domain_attach_by_id - Associate a device with one of its PM domains.
+ * @dev: The device used to lookup the PM domain.
+ * @index: The index of the PM domain.
+ *
+ * As @dev may only be attached to a single PM domain, the backend PM domain
+ * provider creates a virtual device to attach instead. If attachment succeeds,
+ * the ->detach() callback in the struct dev_pm_domain are assigned by the
+ * corresponding backend attach function, as to deal with detaching of the
+ * created virtual device.
+ *
+ * This function should typically be invoked by a driver during the probe phase,
+ * in case its device requires power management through multiple PM domains. The
+ * driver may benefit from using the received device, to configure device-links
+ * towards its original device. Depending on the use-case and if needed, the
+ * links may be dynamically changed by the driver, which allows it to control
+ * the power to the PM domains independently from each other.
+ *
+ * Callers must ensure proper synchronization of this function with power
+ * management callbacks.
+ *
+ * Returns the virtual created device when successfully attached to its PM
+ * domain, NULL in case @dev don't need a PM domain, else an ERR_PTR().
+ * Note that, to detach the returned virtual device, the driver shall call
+ * dev_pm_domain_detach() on it, typically during the remove phase.
+ */
+struct device *dev_pm_domain_attach_by_id(struct device *dev,
+					  unsigned int index)
+{
+	if (dev->pm_domain)
+		return ERR_PTR(-EEXIST);
+
+	return genpd_dev_pm_attach_by_id(dev, index);
+}
+EXPORT_SYMBOL_GPL(dev_pm_domain_attach_by_id);
+
 /**
  * dev_pm_domain_detach - Detach a device from its PM domain.
  * @dev: Device to detach.
  * @power_off: Used to indicate whether we should power off the device.
  *
- * This functions will reverse the actions from dev_pm_domain_attach() and thus
- * try to detach the @dev from its PM domain. Typically it should be invoked
- * from subsystem level code during the remove phase.
+ * This functions will reverse the actions from dev_pm_domain_attach() and
+ * dev_pm_domain_attach_by_id(), thus it detaches @dev from its PM domain.
+ * Typically it should be invoked during the remove phase, either from
+ * subsystem level code or from drivers.
  *
  * Callers must ensure proper synchronization of this function with power
  * management callbacks.
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 6f403d6fccb2..4925af5c4cf0 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -2171,6 +2171,15 @@ struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
 }
 EXPORT_SYMBOL_GPL(of_genpd_remove_last);
 
+static void genpd_release_dev(struct device *dev)
+{
+	kfree(dev);
+}
+
+static struct bus_type genpd_bus_type = {
+	.name		= "genpd",
+};
+
 /**
  * genpd_dev_pm_detach - Detach a device from its PM domain.
  * @dev: Device to detach.
@@ -2208,6 +2217,10 @@ static void genpd_dev_pm_detach(struct device *dev, bool power_off)
 
 	/* Check if PM domain can be powered off after removing this device. */
 	genpd_queue_power_off_work(pd);
+
+	/* Unregister the device if it was created by genpd. */
+	if (dev->bus == &genpd_bus_type)
+		device_unregister(dev);
 }
 
 static void genpd_dev_pm_sync(struct device *dev)
@@ -2221,32 +2234,17 @@ static void genpd_dev_pm_sync(struct device *dev)
 	genpd_queue_power_off_work(pd);
 }
 
-/**
- * genpd_dev_pm_attach - Attach a device to its PM domain using DT.
- * @dev: Device to attach.
- *
- * Parse device's OF node to find a PM domain specifier. If such is found,
- * attaches the device to retrieved pm_domain ops.
- *
- * Returns 1 on successfully attached PM domain, 0 when the device don't need a
- * PM domain or a negative error code in case of failures. Note that if a
- * power-domain exists for the device, but it cannot be found or turned on,
- * then return -EPROBE_DEFER to ensure that the device is not probed and to
- * re-try again later.
- */
-int genpd_dev_pm_attach(struct device *dev)
+static int __genpd_dev_pm_attach(struct device *dev, struct device_node *np,
+				 unsigned int index)
 {
 	struct of_phandle_args pd_args;
 	struct generic_pm_domain *pd;
 	int ret;
 
-	if (!dev->of_node)
-		return 0;
-
-	ret = of_parse_phandle_with_args(dev->of_node, "power-domains",
-					"#power-domain-cells", 0, &pd_args);
+	ret = of_parse_phandle_with_args(np, "power-domains",
+				"#power-domain-cells", index, &pd_args);
 	if (ret < 0)
-		return 0;
+		return ret;
 
 	mutex_lock(&gpd_list_lock);
 	pd = genpd_get_from_provider(&pd_args);
@@ -2282,8 +2280,98 @@ int genpd_dev_pm_attach(struct device *dev)
 
 	return ret ? -EPROBE_DEFER : 1;
 }
+
+/**
+ * genpd_dev_pm_attach - Attach a device to its PM domain using DT.
+ * @dev: Device to attach.
+ *
+ * Parse device's OF node to find a PM domain specifier. If such is found,
+ * attaches the device to retrieved pm_domain ops.
+ *
+ * Returns 1 on successfully attached PM domain, 0 when the device don't need a
+ * PM domain or when multiple power-domains exists for it, else a negative error
+ * code. Note that if a power-domain exists for the device, but it cannot be
+ * found or turned on, then return -EPROBE_DEFER to ensure that the device is
+ * not probed and to re-try again later.
+ */
+int genpd_dev_pm_attach(struct device *dev)
+{
+	if (!dev->of_node)
+		return 0;
+
+	/*
+	 * Devices with multiple PM domains must be attached separately, as we
+	 * can only attach one PM domain per device.
+	 */
+	if (of_count_phandle_with_args(dev->of_node, "power-domains",
+				       "#power-domain-cells") != 1)
+		return 0;
+
+	return __genpd_dev_pm_attach(dev, dev->of_node, 0);
+}
 EXPORT_SYMBOL_GPL(genpd_dev_pm_attach);
 
+/**
+ * genpd_dev_pm_attach_by_id - Associate a device with one of its PM domains.
+ * @dev: The device used to lookup the PM domain.
+ * @index: The index of the PM domain.
+ *
+ * Parse device's OF node to find a PM domain specifier at the provided @index.
+ * If such is found, creates a virtual device and attaches it to the retrieved
+ * pm_domain ops. To deal with detaching of the virtual device, the ->detach()
+ * callback in the struct dev_pm_domain are assigned to genpd_dev_pm_detach().
+ *
+ * Returns the created virtual device if successfully attached PM domain, NULL
+ * when the device don't need a PM domain, else an ERR_PTR() in case of
+ * failures. If a power-domain exists for the device, but cannot be found or
+ * turned on, then ERR_PTR(-EPROBE_DEFER) is returned to ensure that the device
+ * is not probed and to re-try again later.
+ */
+struct device *genpd_dev_pm_attach_by_id(struct device *dev,
+					 unsigned int index)
+{
+	struct device *genpd_dev;
+	int num_domains;
+	int ret;
+
+	if (!dev->of_node)
+		return NULL;
+
+	/* Deal only with devices using multiple PM domains. */
+	num_domains = of_count_phandle_with_args(dev->of_node, "power-domains",
+						 "#power-domain-cells");
+	if (num_domains < 2 || index >= num_domains)
+		return NULL;
+
+	/* Allocate and register device on the genpd bus. */
+	genpd_dev = kzalloc(sizeof(*genpd_dev), GFP_KERNEL);
+	if (!genpd_dev)
+		return ERR_PTR(-ENOMEM);
+
+	dev_set_name(genpd_dev, "genpd:%u:%s", index, dev_name(dev));
+	genpd_dev->bus = &genpd_bus_type;
+	genpd_dev->release = genpd_release_dev;
+
+	ret = device_register(genpd_dev);
+	if (ret) {
+		kfree(genpd_dev);
+		return ERR_PTR(ret);
+	}
+
+	/* Try to attach the device to the PM domain at the specified index. */
+	ret = __genpd_dev_pm_attach(genpd_dev, dev->of_node, index);
+	if (ret < 1) {
+		device_unregister(genpd_dev);
+		return ret ? ERR_PTR(ret) : NULL;
+	}
+
+	pm_runtime_set_active(genpd_dev);
+	pm_runtime_enable(genpd_dev);
+
+	return genpd_dev;
+}
+EXPORT_SYMBOL_GPL(genpd_dev_pm_attach_by_id);
+
 static const struct of_device_id idle_state_match[] = {
 	{ .compatible = "domain-idle-state", },
 	{ }
@@ -2443,6 +2531,12 @@ unsigned int of_genpd_opp_to_performance_state(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(of_genpd_opp_to_performance_state);
 
+static int __init genpd_bus_init(void)
+{
+	return bus_register(&genpd_bus_type);
+}
+core_initcall(genpd_bus_init);
+
 #endif /* CONFIG_PM_GENERIC_DOMAINS_OF */
 
 
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index c6030f100c08..beb85c31f3fa 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1563,16 +1563,37 @@ void pm_runtime_clean_up_links(struct device *dev)
 }
 
 /**
- * pm_runtime_resume_suppliers - Resume supplier devices.
+ * pm_runtime_get_suppliers - Resume and reference-count supplier devices.
  * @dev: Consumer device.
  */
-void pm_runtime_resume_suppliers(struct device *dev)
+void pm_runtime_get_suppliers(struct device *dev)
 {
+	struct device_link *link;
 	int idx;
 
 	idx = device_links_read_lock();
 
-	rpm_get_suppliers(dev);
+	list_for_each_entry_rcu(link, &dev->links.suppliers, c_node)
+		if (link->flags & DL_FLAG_PM_RUNTIME)
+			pm_runtime_get_sync(link->supplier);
+
+	device_links_read_unlock(idx);
+}
+
+/**
+ * pm_runtime_put_suppliers - Drop references to supplier devices.
+ * @dev: Consumer device.
+ */
+void pm_runtime_put_suppliers(struct device *dev)
+{
+	struct device_link *link;
+	int idx;
+
+	idx = device_links_read_lock();
+
+	list_for_each_entry_rcu(link, &dev->links.suppliers, c_node)
+		if (link->flags & DL_FLAG_PM_RUNTIME)
+			pm_runtime_put(link->supplier);
 
 	device_links_read_unlock(idx);
 }
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index 0f651efc58a1..d713738ce796 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -353,7 +353,7 @@ static ssize_t wakeup_count_show(struct device *dev,
 
 	spin_lock_irq(&dev->power.lock);
 	if (dev->power.wakeup) {
-		count = dev->power.wakeup->event_count;
+		count = dev->power.wakeup->wakeup_count;
 		enabled = true;
 	}
 	spin_unlock_irq(&dev->power.lock);
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index c7ce928fbf1f..52f5f1a2040c 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -125,7 +125,7 @@ config ARM_OMAP2PLUS_CPUFREQ
 	default ARCH_OMAP2PLUS
 
 config ARM_QCOM_CPUFREQ_KRYO
-	bool "Qualcomm Kryo based CPUFreq"
+	tristate "Qualcomm Kryo based CPUFreq"
 	depends on ARM64
 	depends on QCOM_QFPROM
 	depends on QCOM_SMEM
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 8ff1c9123834..b61f4ec43e06 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -465,8 +465,8 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 	return result;
 }
 
-unsigned int acpi_cpufreq_fast_switch(struct cpufreq_policy *policy,
-				      unsigned int target_freq)
+static unsigned int acpi_cpufreq_fast_switch(struct cpufreq_policy *policy,
+					     unsigned int target_freq)
 {
 	struct acpi_cpufreq_data *data = policy->driver_data;
 	struct acpi_processor_performance *perf;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 871bf9cf55cf..1d50e97d49f1 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -165,7 +165,7 @@ unsigned int dbs_update(struct cpufreq_policy *policy)
 			 * calls, so the previous load value can be used then.
 			 */
 			load = j_cdbs->prev_load;
-		} else if (unlikely(time_elapsed > 2 * sampling_rate &&
+		} else if (unlikely((int)idle_time > 2 * sampling_rate &&
 				    j_cdbs->prev_load)) {
 			/*
 			 * If the CPU had gone completely idle and a task has
@@ -185,10 +185,8 @@ unsigned int dbs_update(struct cpufreq_policy *policy)
 			 * clear prev_load to guarantee that the load will be
 			 * computed again next time.
 			 *
-			 * Detecting this situation is easy: the governor's
-			 * utilization update handler would not have run during
-			 * CPU-idle periods.  Hence, an unusually large
-			 * 'time_elapsed' (as compared to the sampling rate)
+			 * Detecting this situation is easy: an unusually large
+			 * 'idle_time' (as compared to the sampling rate)
 			 * indicates this scenario.
 			 */
 			load = j_cdbs->prev_load;
@@ -217,8 +215,8 @@ unsigned int dbs_update(struct cpufreq_policy *policy)
 			j_cdbs->prev_load = load;
 		}
 
-		if (time_elapsed > 2 * sampling_rate) {
-			unsigned int periods = time_elapsed / sampling_rate;
+		if (unlikely((int)idle_time > 2 * sampling_rate)) {
+			unsigned int periods = idle_time / sampling_rate;
 
 			if (periods < idle_periods)
 				idle_periods = periods;
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 70912104a199..8b3c2a79ad6c 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -266,6 +266,8 @@ static void imx6q_opp_check_speed_grading(struct device *dev)
 }
 
 #define OCOTP_CFG3_6UL_SPEED_696MHZ	0x2
+#define OCOTP_CFG3_6ULL_SPEED_792MHZ	0x2
+#define OCOTP_CFG3_6ULL_SPEED_900MHZ	0x3
 
 static void imx6ul_opp_check_speed_grading(struct device *dev)
 {
@@ -287,16 +289,30 @@ static void imx6ul_opp_check_speed_grading(struct device *dev)
 	 * Speed GRADING[1:0] defines the max speed of ARM:
 	 * 2b'00: Reserved;
 	 * 2b'01: 528000000Hz;
-	 * 2b'10: 696000000Hz;
-	 * 2b'11: Reserved;
+	 * 2b'10: 696000000Hz on i.MX6UL, 792000000Hz on i.MX6ULL;
+	 * 2b'11: 900000000Hz on i.MX6ULL only;
 	 * We need to set the max speed of ARM according to fuse map.
 	 */
 	val = readl_relaxed(base + OCOTP_CFG3);
 	val >>= OCOTP_CFG3_SPEED_SHIFT;
 	val &= 0x3;
-	if (val != OCOTP_CFG3_6UL_SPEED_696MHZ)
-		if (dev_pm_opp_disable(dev, 696000000))
-			dev_warn(dev, "failed to disable 696MHz OPP\n");
+
+	if (of_machine_is_compatible("fsl,imx6ul")) {
+		if (val != OCOTP_CFG3_6UL_SPEED_696MHZ)
+			if (dev_pm_opp_disable(dev, 696000000))
+				dev_warn(dev, "failed to disable 696MHz OPP\n");
+	}
+
+	if (of_machine_is_compatible("fsl,imx6ull")) {
+		if (val != OCOTP_CFG3_6ULL_SPEED_792MHZ)
+			if (dev_pm_opp_disable(dev, 792000000))
+				dev_warn(dev, "failed to disable 792MHz OPP\n");
+
+		if (val != OCOTP_CFG3_6ULL_SPEED_900MHZ)
+			if (dev_pm_opp_disable(dev, 900000000))
+				dev_warn(dev, "failed to disable 900MHz OPP\n");
+	}
+
 	iounmap(base);
 put_node:
 	of_node_put(np);
@@ -356,7 +372,8 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 		goto put_reg;
 	}
 
-	if (of_machine_is_compatible("fsl,imx6ul"))
+	if (of_machine_is_compatible("fsl,imx6ul") ||
+	    of_machine_is_compatible("fsl,imx6ull"))
 		imx6ul_opp_check_speed_grading(cpu_dev);
 	else
 		imx6q_opp_check_speed_grading(cpu_dev);
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index b6575408f279..1de5ec8d5ea3 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -221,6 +221,11 @@ struct global_params {
  *			preference/bias
  * @epp_saved:		Saved EPP/EPB during system suspend or CPU offline
  *			operation
+ * @hwp_req_cached:	Cached value of the last HWP Request MSR
+ * @hwp_cap_cached:	Cached value of the last HWP Capabilities MSR
+ * @last_io_update:	Last time when IO wake flag was set
+ * @sched_flags:	Store scheduler flags for possible cross CPU update
+ * @hwp_boost_min:	Last HWP boosted min performance
  *
  * This structure stores per CPU instance data for all CPUs.
  */
@@ -253,6 +258,11 @@ struct cpudata {
 	s16 epp_policy;
 	s16 epp_default;
 	s16 epp_saved;
+	u64 hwp_req_cached;
+	u64 hwp_cap_cached;
+	u64 last_io_update;
+	unsigned int sched_flags;
+	u32 hwp_boost_min;
 };
 
 static struct cpudata **all_cpu_data;
@@ -285,6 +295,7 @@ static struct pstate_funcs pstate_funcs __read_mostly;
 
 static int hwp_active __read_mostly;
 static bool per_cpu_limits __read_mostly;
+static bool hwp_boost __read_mostly;
 
 static struct cpufreq_driver *intel_pstate_driver __read_mostly;
 
@@ -689,6 +700,7 @@ static void intel_pstate_get_hwp_max(unsigned int cpu, int *phy_max,
 	u64 cap;
 
 	rdmsrl_on_cpu(cpu, MSR_HWP_CAPABILITIES, &cap);
+	WRITE_ONCE(all_cpu_data[cpu]->hwp_cap_cached, cap);
 	if (global.no_turbo)
 		*current_max = HWP_GUARANTEED_PERF(cap);
 	else
@@ -763,6 +775,7 @@ static void intel_pstate_hwp_set(unsigned int cpu)
 		intel_pstate_set_epb(cpu, epp);
 	}
 skip_epp:
+	WRITE_ONCE(cpu_data->hwp_req_cached, value);
 	wrmsrl_on_cpu(cpu, MSR_HWP_REQUEST, value);
 }
 
@@ -1020,6 +1033,30 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b,
 	return count;
 }
 
+static ssize_t show_hwp_dynamic_boost(struct kobject *kobj,
+				struct attribute *attr, char *buf)
+{
+	return sprintf(buf, "%u\n", hwp_boost);
+}
+
+static ssize_t store_hwp_dynamic_boost(struct kobject *a, struct attribute *b,
+				       const char *buf, size_t count)
+{
+	unsigned int input;
+	int ret;
+
+	ret = kstrtouint(buf, 10, &input);
+	if (ret)
+		return ret;
+
+	mutex_lock(&intel_pstate_driver_lock);
+	hwp_boost = !!input;
+	intel_pstate_update_policies();
+	mutex_unlock(&intel_pstate_driver_lock);
+
+	return count;
+}
+
 show_one(max_perf_pct, max_perf_pct);
 show_one(min_perf_pct, min_perf_pct);
 
@@ -1029,6 +1066,7 @@ define_one_global_rw(max_perf_pct);
 define_one_global_rw(min_perf_pct);
 define_one_global_ro(turbo_pct);
 define_one_global_ro(num_pstates);
+define_one_global_rw(hwp_dynamic_boost);
 
 static struct attribute *intel_pstate_attributes[] = {
 	&status.attr,
@@ -1069,6 +1107,11 @@ static void __init intel_pstate_sysfs_expose_params(void)
 	rc = sysfs_create_file(intel_pstate_kobject, &min_perf_pct.attr);
 	WARN_ON(rc);
 
+	if (hwp_active) {
+		rc = sysfs_create_file(intel_pstate_kobject,
+				       &hwp_dynamic_boost.attr);
+		WARN_ON(rc);
+	}
 }
 /************************** sysfs end ************************/
 
@@ -1381,6 +1424,116 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 	intel_pstate_set_min_pstate(cpu);
 }
 
+/*
+ * Long hold time will keep high perf limits for long time,
+ * which negatively impacts perf/watt for some workloads,
+ * like specpower. 3ms is based on experiements on some
+ * workoads.
+ */
+static int hwp_boost_hold_time_ns = 3 * NSEC_PER_MSEC;
+
+static inline void intel_pstate_hwp_boost_up(struct cpudata *cpu)
+{
+	u64 hwp_req = READ_ONCE(cpu->hwp_req_cached);
+	u32 max_limit = (hwp_req & 0xff00) >> 8;
+	u32 min_limit = (hwp_req & 0xff);
+	u32 boost_level1;
+
+	/*
+	 * Cases to consider (User changes via sysfs or boot time):
+	 * If, P0 (Turbo max) = P1 (Guaranteed max) = min:
+	 *	No boost, return.
+	 * If, P0 (Turbo max) > P1 (Guaranteed max) = min:
+	 *     Should result in one level boost only for P0.
+	 * If, P0 (Turbo max) = P1 (Guaranteed max) > min:
+	 *     Should result in two level boost:
+	 *         (min + p1)/2 and P1.
+	 * If, P0 (Turbo max) > P1 (Guaranteed max) > min:
+	 *     Should result in three level boost:
+	 *        (min + p1)/2, P1 and P0.
+	 */
+
+	/* If max and min are equal or already at max, nothing to boost */
+	if (max_limit == min_limit || cpu->hwp_boost_min >= max_limit)
+		return;
+
+	if (!cpu->hwp_boost_min)
+		cpu->hwp_boost_min = min_limit;
+
+	/* level at half way mark between min and guranteed */
+	boost_level1 = (HWP_GUARANTEED_PERF(cpu->hwp_cap_cached) + min_limit) >> 1;
+
+	if (cpu->hwp_boost_min < boost_level1)
+		cpu->hwp_boost_min = boost_level1;
+	else if (cpu->hwp_boost_min < HWP_GUARANTEED_PERF(cpu->hwp_cap_cached))
+		cpu->hwp_boost_min = HWP_GUARANTEED_PERF(cpu->hwp_cap_cached);
+	else if (cpu->hwp_boost_min == HWP_GUARANTEED_PERF(cpu->hwp_cap_cached) &&
+		 max_limit != HWP_GUARANTEED_PERF(cpu->hwp_cap_cached))
+		cpu->hwp_boost_min = max_limit;
+	else
+		return;
+
+	hwp_req = (hwp_req & ~GENMASK_ULL(7, 0)) | cpu->hwp_boost_min;
+	wrmsrl(MSR_HWP_REQUEST, hwp_req);
+	cpu->last_update = cpu->sample.time;
+}
+
+static inline void intel_pstate_hwp_boost_down(struct cpudata *cpu)
+{
+	if (cpu->hwp_boost_min) {
+		bool expired;
+
+		/* Check if we are idle for hold time to boost down */
+		expired = time_after64(cpu->sample.time, cpu->last_update +
+				       hwp_boost_hold_time_ns);
+		if (expired) {
+			wrmsrl(MSR_HWP_REQUEST, cpu->hwp_req_cached);
+			cpu->hwp_boost_min = 0;
+		}
+	}
+	cpu->last_update = cpu->sample.time;
+}
+
+static inline void intel_pstate_update_util_hwp_local(struct cpudata *cpu,
+						      u64 time)
+{
+	cpu->sample.time = time;
+
+	if (cpu->sched_flags & SCHED_CPUFREQ_IOWAIT) {
+		bool do_io = false;
+
+		cpu->sched_flags = 0;
+		/*
+		 * Set iowait_boost flag and update time. Since IO WAIT flag
+		 * is set all the time, we can't just conclude that there is
+		 * some IO bound activity is scheduled on this CPU with just
+		 * one occurrence. If we receive at least two in two
+		 * consecutive ticks, then we treat as boost candidate.
+		 */
+		if (time_before64(time, cpu->last_io_update + 2 * TICK_NSEC))
+			do_io = true;
+
+		cpu->last_io_update = time;
+
+		if (do_io)
+			intel_pstate_hwp_boost_up(cpu);
+
+	} else {
+		intel_pstate_hwp_boost_down(cpu);
+	}
+}
+
+static inline void intel_pstate_update_util_hwp(struct update_util_data *data,
+						u64 time, unsigned int flags)
+{
+	struct cpudata *cpu = container_of(data, struct cpudata, update_util);
+
+	cpu->sched_flags |= flags;
+
+	if (smp_processor_id() == cpu->cpu)
+		intel_pstate_update_util_hwp_local(cpu, time);
+}
+
 static inline void intel_pstate_calc_avg_perf(struct cpudata *cpu)
 {
 	struct sample *sample = &cpu->sample;
@@ -1641,6 +1794,12 @@ static const struct x86_cpu_id intel_pstate_cpu_ee_disable_ids[] = {
 	{}
 };
 
+static const struct x86_cpu_id intel_pstate_hwp_boost_ids[] = {
+	ICPU(INTEL_FAM6_SKYLAKE_X, core_funcs),
+	ICPU(INTEL_FAM6_SKYLAKE_DESKTOP, core_funcs),
+	{}
+};
+
 static int intel_pstate_init_cpu(unsigned int cpunum)
 {
 	struct cpudata *cpu;
@@ -1671,6 +1830,10 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
 			intel_pstate_disable_ee(cpunum);
 
 		intel_pstate_hwp_enable(cpu);
+
+		id = x86_match_cpu(intel_pstate_hwp_boost_ids);
+		if (id)
+			hwp_boost = true;
 	}
 
 	intel_pstate_get_cpu_pstates(cpu);
@@ -1684,7 +1847,7 @@ static void intel_pstate_set_update_util_hook(unsigned int cpu_num)
 {
 	struct cpudata *cpu = all_cpu_data[cpu_num];
 
-	if (hwp_active)
+	if (hwp_active && !hwp_boost)
 		return;
 
 	if (cpu->update_util_set)
@@ -1693,7 +1856,9 @@ static void intel_pstate_set_update_util_hook(unsigned int cpu_num)
 	/* Prevent intel_pstate_update_util() from using stale data. */
 	cpu->sample.time = 0;
 	cpufreq_add_update_util_hook(cpu_num, &cpu->update_util,
-				     intel_pstate_update_util);
+				     (hwp_active ?
+				      intel_pstate_update_util_hwp :
+				      intel_pstate_update_util));
 	cpu->update_util_set = true;
 }
 
@@ -1805,8 +1970,16 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
 		intel_pstate_set_update_util_hook(policy->cpu);
 	}
 
-	if (hwp_active)
+	if (hwp_active) {
+		/*
+		 * When hwp_boost was active before and dynamically it
+		 * was turned off, in that case we need to clear the
+		 * update util hook.
+		 */
+		if (!hwp_boost)
+			intel_pstate_clear_update_util_hook(policy->cpu);
 		intel_pstate_hwp_set(policy->cpu);
+	}
 
 	mutex_unlock(&intel_pstate_limits_lock);
 
diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 6ba709b6f095..3f0e2a14895a 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -217,7 +217,7 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
 	if (!match)
 		return -ENODEV;
 
-	opp_data = kzalloc(sizeof(*opp_data), GFP_KERNEL);
+	opp_data = devm_kzalloc(&pdev->dev, sizeof(*opp_data), GFP_KERNEL);
 	if (!opp_data)
 		return -ENOMEM;
 
@@ -226,8 +226,7 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
 	opp_data->cpu_dev = get_cpu_device(0);
 	if (!opp_data->cpu_dev) {
 		pr_err("%s: Failed to get device for CPU0\n", __func__);
-		ret = ENODEV;
-		goto free_opp_data;
+		return -ENODEV;
 	}
 
 	opp_data->opp_node = dev_pm_opp_of_get_opp_desc_node(opp_data->cpu_dev);
@@ -285,8 +284,6 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
 
 fail_put_node:
 	of_node_put(opp_data->opp_node);
-free_opp_data:
-	kfree(opp_data);
 
 	return ret;
 }
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 42e0d649e653..9206a4fef9ac 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -237,6 +237,8 @@ unsigned int of_genpd_opp_to_performance_state(struct device *dev,
 				struct device_node *opp_node);
 
 int genpd_dev_pm_attach(struct device *dev);
+struct device *genpd_dev_pm_attach_by_id(struct device *dev,
+					 unsigned int index);
 #else /* !CONFIG_PM_GENERIC_DOMAINS_OF */
 static inline int of_genpd_add_provider_simple(struct device_node *np,
 					struct generic_pm_domain *genpd)
@@ -282,6 +284,12 @@ static inline int genpd_dev_pm_attach(struct device *dev)
 	return 0;
 }
 
+static inline struct device *genpd_dev_pm_attach_by_id(struct device *dev,
+						       unsigned int index)
+{
+	return NULL;
+}
+
 static inline
 struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
 {
@@ -291,6 +299,8 @@ struct generic_pm_domain *of_genpd_remove_last(struct device_node *np)
 
 #ifdef CONFIG_PM
 int dev_pm_domain_attach(struct device *dev, bool power_on);
+struct device *dev_pm_domain_attach_by_id(struct device *dev,
+					  unsigned int index);
 void dev_pm_domain_detach(struct device *dev, bool power_off);
 void dev_pm_domain_set(struct device *dev, struct dev_pm_domain *pd);
 #else
@@ -298,6 +308,11 @@ static inline int dev_pm_domain_attach(struct device *dev, bool power_on)
 {
 	return 0;
 }
+static inline struct device *dev_pm_domain_attach_by_id(struct device *dev,
+							unsigned int index)
+{
+	return NULL;
+}
 static inline void dev_pm_domain_detach(struct device *dev, bool power_off) {}
 static inline void dev_pm_domain_set(struct device *dev,
 				     struct dev_pm_domain *pd) {}
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index db5dbbf7a48d..f0fc4700b6ff 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -56,7 +56,8 @@ extern void pm_runtime_update_max_time_suspended(struct device *dev,
 						 s64 delta_ns);
 extern void pm_runtime_set_memalloc_noio(struct device *dev, bool enable);
 extern void pm_runtime_clean_up_links(struct device *dev);
-extern void pm_runtime_resume_suppliers(struct device *dev);
+extern void pm_runtime_get_suppliers(struct device *dev);
+extern void pm_runtime_put_suppliers(struct device *dev);
 extern void pm_runtime_new_link(struct device *dev);
 extern void pm_runtime_drop_link(struct device *dev);
 
@@ -172,7 +173,8 @@ static inline unsigned long pm_runtime_autosuspend_expiration(
 static inline void pm_runtime_set_memalloc_noio(struct device *dev,
 						bool enable){}
 static inline void pm_runtime_clean_up_links(struct device *dev) {}
-static inline void pm_runtime_resume_suppliers(struct device *dev) {}
+static inline void pm_runtime_get_suppliers(struct device *dev) {}
+static inline void pm_runtime_put_suppliers(struct device *dev) {}
 static inline void pm_runtime_new_link(struct device *dev) {}
 static inline void pm_runtime_drop_link(struct device *dev) {}
 
diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c
index 9b65f052081f..9ba8a44ad2a7 100644
--- a/tools/power/cpupower/bench/parse.c
+++ b/tools/power/cpupower/bench/parse.c
@@ -104,7 +104,7 @@ FILE *prepare_output(const char *dirname)
 			dirname, time(NULL));
 	}
 
-	dprintf("logilename: %s\n", filename);
+	dprintf("logfilename: %s\n", filename);
 
 	output = fopen(filename, "w+");
 	if (output == NULL) {
diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
index 5b3205f16217..5b8c4956ff9a 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
+++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c
@@ -126,6 +126,20 @@ void fix_up_intel_idle_driver_name(char *tmp, int num)
 	}
 }
 
+#ifdef __powerpc__
+void map_power_idle_state_name(char *tmp)
+{
+	if (!strncmp(tmp, "stop0_lite", CSTATE_NAME_LEN))
+		strcpy(tmp, "stop0L");
+	else if (!strncmp(tmp, "stop1_lite", CSTATE_NAME_LEN))
+		strcpy(tmp, "stop1L");
+	else if (!strncmp(tmp, "stop2_lite", CSTATE_NAME_LEN))
+		strcpy(tmp, "stop2L");
+}
+#else
+void map_power_idle_state_name(char *tmp) { }
+#endif
+
 static struct cpuidle_monitor *cpuidle_register(void)
 {
 	int num;
@@ -145,6 +159,7 @@ static struct cpuidle_monitor *cpuidle_register(void)
 		if (tmp == NULL)
 			continue;
 
+		map_power_idle_state_name(tmp);
 		fix_up_intel_idle_driver_name(tmp, num);
 		strncpy(cpuidle_cstates[num].name, tmp, CSTATE_NAME_LEN - 1);
 		free(tmp);
diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
index 05f953f0f0a0..051da0a7c454 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
+++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c
@@ -70,36 +70,43 @@ void print_n_spaces(int n)
 		printf(" ");
 }
 
-/* size of s must be at least n + 1 */
+/*s is filled with left and right spaces
+ *to make its length atleast n+1
+ */
 int fill_string_with_spaces(char *s, int n)
 {
+	char *temp;
 	int len = strlen(s);
-	if (len > n)
+
+	if (len >= n)
 		return -1;
+
+	temp = malloc(sizeof(char) * (n+1));
 	for (; len < n; len++)
 		s[len] = ' ';
 	s[len] = '\0';
+	snprintf(temp, n+1, " %s", s);
+	strcpy(s, temp);
+	free(temp);
 	return 0;
 }
 
+#define MAX_COL_WIDTH 6
 void print_header(int topology_depth)
 {
 	int unsigned mon;
 	int state, need_len;
 	cstate_t s;
 	char buf[128] = "";
-	int percent_width = 4;
 
 	fill_string_with_spaces(buf, topology_depth * 5 - 1);
 	printf("%s|", buf);
 
 	for (mon = 0; mon < avail_monitors; mon++) {
-		need_len = monitors[mon]->hw_states_num * (percent_width + 3)
+		need_len = monitors[mon]->hw_states_num * (MAX_COL_WIDTH + 1)
 			- 1;
-		if (mon != 0) {
-			printf("|| ");
-			need_len--;
-		}
+		if (mon != 0)
+			printf("||");
 		sprintf(buf, "%s", monitors[mon]->name);
 		fill_string_with_spaces(buf, need_len);
 		printf("%s", buf);
@@ -107,23 +114,21 @@ void print_header(int topology_depth)
 	printf("\n");
 
 	if (topology_depth > 2)
-		printf("PKG |");
+		printf(" PKG|");
 	if (topology_depth > 1)
 		printf("CORE|");
 	if (topology_depth > 0)
-		printf("CPU |");
+		printf(" CPU|");
 
 	for (mon = 0; mon < avail_monitors; mon++) {
 		if (mon != 0)
-			printf("|| ");
-		else
-			printf(" ");
+			printf("||");
 		for (state = 0; state < monitors[mon]->hw_states_num; state++) {
 			if (state != 0)
-				printf(" | ");
+				printf("|");
 			s = monitors[mon]->hw_states[state];
 			sprintf(buf, "%s", s.name);
-			fill_string_with_spaces(buf, percent_width);
+			fill_string_with_spaces(buf, MAX_COL_WIDTH);
 			printf("%s", buf);
 		}
 		printf(" ");
diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h
index 9e43f3371fbc..2ae50b499e0a 100644
--- a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h
+++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h
@@ -15,7 +15,16 @@
 
 #define MONITORS_MAX 20
 #define MONITOR_NAME_LEN 20
+
+/* CSTATE_NAME_LEN is limited by header field width defined
+ * in cpupower-monitor.c. Header field width is defined to be
+ * sum of percent width and two spaces for padding.
+ */
+#ifdef __powerpc__
+#define CSTATE_NAME_LEN 7
+#else
 #define CSTATE_NAME_LEN 5
+#endif
 #define CSTATE_DESC_LEN 60
 
 int cpu_count;