Merge back earlier cpufreq material.

Conflicts:
	arch/mips/loongson/lemote-2f/clock.c
	drivers/cpufreq/intel_pstate.c

29 files changed, 426 insertions, 331 deletions

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 5805035..6a7dd3e 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -5,7 +5,8 @@
 # big LITTLE core layer and glue drivers
 config ARM_BIG_LITTLE_CPUFREQ
 	tristate "Generic ARM big LITTLE CPUfreq driver"
-	depends on ARM && BIG_LITTLE && ARM_CPU_TOPOLOGY && HAVE_CLK
+	depends on (BIG_LITTLE && ARM_CPU_TOPOLOGY) || (ARM64 && SMP)
+	depends on HAVE_CLK
 	select PM_OPP
 	help
 	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
@@ -85,7 +86,7 @@ config ARM_EXYNOS_CPU_FREQ_BOOST_SW
 	  It allows usage of special frequencies for Samsung Exynos
 	  processors if thermal conditions are appropriate.
 
-	  It reguires, for safe operation, thermal framework with properly
+	  It requires, for safe operation, thermal framework with properly
 	  defined trip points.
 
 	  If in doubt, say N.
@@ -186,7 +187,7 @@ config ARM_S3C2416_CPUFREQ
 	  S3C2450 SoC. The S3C2416 supports changing the rate of the
 	  armdiv clock source and also entering a so called dynamic
 	  voltage scaling mode in which it is possible to reduce the
-	  core voltage of the cpu.
+	  core voltage of the CPU.
 
 	  If in doubt, say N.
 
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index d369349..89ae88f 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -10,7 +10,7 @@ config X86_INTEL_PSTATE
 	  The driver implements an internal governor and will become
           the scaling driver and governor for Sandy bridge processors.
 
-	  When this driver is enabled it will become the perferred
+	  When this driver is enabled it will become the preferred
           scaling driver for Sandy bridge processors.
 
 	  If in doubt, say N.
@@ -52,7 +52,7 @@ config X86_ACPI_CPUFREQ_CPB
 	help
 	  The powernow-k8 driver used to provide a sysfs knob called "cpb"
 	  to disable the Core Performance Boosting feature of AMD CPUs. This
-	  file has now been superseeded by the more generic "boost" entry.
+	  file has now been superseded by the more generic "boost" entry.
 
 	  By enabling this option the acpi_cpufreq driver provides the old
 	  entry in addition to the new boost ones, for compatibility reasons.
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 0dbb963c..738c8b7 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -1,5 +1,7 @@
 # CPUfreq core
 obj-$(CONFIG_CPU_FREQ)			+= cpufreq.o freq_table.o
+obj-$(CONFIG_PM_OPP)			+= cpufreq_opp.o
+
 # CPUfreq stats
 obj-$(CONFIG_CPU_FREQ_STAT)             += cpufreq_stats.o
 
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 000e4e0..b0c18ed 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -213,7 +213,7 @@ static unsigned extract_io(u32 value, struct acpi_cpufreq_data *data)
 
 static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
 {
-	int i;
+	struct cpufreq_frequency_table *pos;
 	struct acpi_processor_performance *perf;
 
 	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
@@ -223,10 +223,9 @@ static unsigned extract_msr(u32 msr, struct acpi_cpufreq_data *data)
 
 	perf = data->acpi_data;
 
-	for (i = 0; data->freq_table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		if (msr == perf->states[data->freq_table[i].driver_data].status)
-			return data->freq_table[i].frequency;
-	}
+	cpufreq_for_each_entry(pos, data->freq_table)
+		if (msr == perf->states[pos->driver_data].status)
+			return pos->frequency;
 	return data->freq_table[0].frequency;
 }
 
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index bad2ed3..1f4d4e3 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -226,22 +226,22 @@ static inline u32 get_table_count(struct cpufreq_frequency_table *table)
 /* get the minimum frequency in the cpufreq_frequency_table */
 static inline u32 get_table_min(struct cpufreq_frequency_table *table)
 {
-	int i;
+	struct cpufreq_frequency_table *pos;
 	uint32_t min_freq = ~0;
-	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
-		if (table[i].frequency < min_freq)
-			min_freq = table[i].frequency;
+	cpufreq_for_each_entry(pos, table)
+		if (pos->frequency < min_freq)
+			min_freq = pos->frequency;
 	return min_freq;
 }
 
 /* get the maximum frequency in the cpufreq_frequency_table */
 static inline u32 get_table_max(struct cpufreq_frequency_table *table)
 {
-	int i;
+	struct cpufreq_frequency_table *pos;
 	uint32_t max_freq = 0;
-	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
-		if (table[i].frequency > max_freq)
-			max_freq = table[i].frequency;
+	cpufreq_for_each_entry(pos, table)
+		if (pos->frequency > max_freq)
+			max_freq = pos->frequency;
 	return max_freq;
 }
 
diff --git a/drivers/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c
index bc447b9..a225809 100644
--- a/drivers/cpufreq/cpufreq-nforce2.c
+++ b/drivers/cpufreq/cpufreq-nforce2.c
@@ -379,7 +379,7 @@ static struct cpufreq_driver nforce2_driver = {
 };
 
 #ifdef MODULE
-static DEFINE_PCI_DEVICE_TABLE(nforce2_ids) = {
+static const struct pci_device_id nforce2_ids[] = {
 	{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2 },
 	{}
 };
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index abda660..ae11dd5 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -354,6 +354,18 @@ static void cpufreq_notify_post_transition(struct cpufreq_policy *policy,
 void cpufreq_freq_transition_begin(struct cpufreq_policy *policy,
 		struct cpufreq_freqs *freqs)
 {
+
+	/*
+	 * Catch double invocations of _begin() which lead to self-deadlock.
+	 * ASYNC_NOTIFICATION drivers are left out because the cpufreq core
+	 * doesn't invoke _begin() on their behalf, and hence the chances of
+	 * double invocations are very low. Moreover, there are scenarios
+	 * where these checks can emit false-positive warnings in these
+	 * drivers; so we avoid that by skipping them altogether.
+	 */
+	WARN_ON(!(cpufreq_driver->flags & CPUFREQ_ASYNC_NOTIFICATION)
+				&& current == policy->transition_task);
+
 wait:
 	wait_event(policy->transition_wait, !policy->transition_ongoing);
 
@@ -365,6 +377,7 @@ wait:
 	}
 
 	policy->transition_ongoing = true;
+	policy->transition_task = current;
 
 	spin_unlock(&policy->transition_lock);
 
@@ -381,6 +394,7 @@ void cpufreq_freq_transition_end(struct cpufreq_policy *policy,
 	cpufreq_notify_post_transition(policy, freqs, transition_failed);
 
 	policy->transition_ongoing = false;
+	policy->transition_task = NULL;
 
 	wake_up(&policy->transition_wait);
 }
@@ -1802,12 +1816,43 @@ EXPORT_SYMBOL(cpufreq_unregister_notifier);
  *                              GOVERNORS                            *
  *********************************************************************/
 
+static int __target_index(struct cpufreq_policy *policy,
+			  struct cpufreq_frequency_table *freq_table, int index)
+{
+	struct cpufreq_freqs freqs;
+	int retval = -EINVAL;
+	bool notify;
+
+	notify = !(cpufreq_driver->flags & CPUFREQ_ASYNC_NOTIFICATION);
+
+	if (notify) {
+		freqs.old = policy->cur;
+		freqs.new = freq_table[index].frequency;
+		freqs.flags = 0;
+
+		pr_debug("%s: cpu: %d, oldfreq: %u, new freq: %u\n",
+			 __func__, policy->cpu, freqs.old, freqs.new);
+
+		cpufreq_freq_transition_begin(policy, &freqs);
+	}
+
+	retval = cpufreq_driver->target_index(policy, index);
+	if (retval)
+		pr_err("%s: Failed to change cpu frequency: %d\n", __func__,
+		       retval);
+
+	if (notify)
+		cpufreq_freq_transition_end(policy, &freqs, retval);
+
+	return retval;
+}
+
 int __cpufreq_driver_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq,
 			    unsigned int relation)
 {
-	int retval = -EINVAL;
 	unsigned int old_target_freq = target_freq;
+	int retval = -EINVAL;
 
 	if (cpufreq_disabled())
 		return -ENODEV;
@@ -1834,8 +1879,6 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 		retval = cpufreq_driver->target(policy, target_freq, relation);
 	else if (cpufreq_driver->target_index) {
 		struct cpufreq_frequency_table *freq_table;
-		struct cpufreq_freqs freqs;
-		bool notify;
 		int index;
 
 		freq_table = cpufreq_frequency_get_table(policy->cpu);
@@ -1856,26 +1899,7 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 			goto out;
 		}
 
-		notify = !(cpufreq_driver->flags & CPUFREQ_ASYNC_NOTIFICATION);
-
-		if (notify) {
-			freqs.old = policy->cur;
-			freqs.new = freq_table[index].frequency;
-			freqs.flags = 0;
-
-			pr_debug("%s: cpu: %d, oldfreq: %u, new freq: %u\n",
-				 __func__, policy->cpu, freqs.old, freqs.new);
-
-			cpufreq_freq_transition_begin(policy, &freqs);
-		}
-
-		retval = cpufreq_driver->target_index(policy, index);
-		if (retval)
-			pr_err("%s: Failed to change cpu frequency: %d\n",
-			       __func__, retval);
-
-		if (notify)
-			cpufreq_freq_transition_end(policy, &freqs, retval);
+		retval = __target_index(policy, freq_table, index);
 	}
 
 out:
diff --git a/drivers/cpufreq/cpufreq_opp.c b/drivers/cpufreq/cpufreq_opp.c
new file mode 100644
index 0000000..c0c6f4a
--- /dev/null
+++ b/drivers/cpufreq/cpufreq_opp.c
@@ -0,0 +1,110 @@
+/*
+ * Generic OPP helper interface for CPUFreq drivers
+ *
+ * Copyright (C) 2009-2014 Texas Instruments Incorporated.
+ *	Nishanth Menon
+ *	Romit Dasgupta
+ *	Kevin Hilman
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/cpufreq.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/pm_opp.h>
+#include <linux/rcupdate.h>
+#include <linux/slab.h>
+
+/**
+ * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device
+ * @dev:	device for which we do this operation
+ * @table:	Cpufreq table returned back to caller
+ *
+ * Generate a cpufreq table for a provided device- this assumes that the
+ * opp list is already initialized and ready for usage.
+ *
+ * This function allocates required memory for the cpufreq table. It is
+ * expected that the caller does the required maintenance such as freeing
+ * the table as required.
+ *
+ * Returns -EINVAL for bad pointers, -ENODEV if the device is not found, -ENOMEM
+ * if no memory available for the operation (table is not populated), returns 0
+ * if successful and table is populated.
+ *
+ * WARNING: It is  important for the callers to ensure refreshing their copy of
+ * the table if any of the mentioned functions have been invoked in the interim.
+ *
+ * Locking: The internal device_opp and opp structures are RCU protected.
+ * Since we just use the regular accessor functions to access the internal data
+ * structures, we use RCU read lock inside this function. As a result, users of
+ * this function DONOT need to use explicit locks for invoking.
+ */
+int dev_pm_opp_init_cpufreq_table(struct device *dev,
+				  struct cpufreq_frequency_table **table)
+{
+	struct dev_pm_opp *opp;
+	struct cpufreq_frequency_table *freq_table = NULL;
+	int i, max_opps, ret = 0;
+	unsigned long rate;
+
+	rcu_read_lock();
+
+	max_opps = dev_pm_opp_get_opp_count(dev);
+	if (max_opps <= 0) {
+		ret = max_opps ? max_opps : -ENODATA;
+		goto out;
+	}
+
+	freq_table = kzalloc(sizeof(*freq_table) * (max_opps + 1), GFP_KERNEL);
+	if (!freq_table) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	for (i = 0, rate = 0; i < max_opps; i++, rate++) {
+		/* find next rate */
+		opp = dev_pm_opp_find_freq_ceil(dev, &rate);
+		if (IS_ERR(opp)) {
+			ret = PTR_ERR(opp);
+			goto out;
+		}
+		freq_table[i].driver_data = i;
+		freq_table[i].frequency = rate / 1000;
+	}
+
+	freq_table[i].driver_data = i;
+	freq_table[i].frequency = CPUFREQ_TABLE_END;
+
+	*table = &freq_table[0];
+
+out:
+	rcu_read_unlock();
+	if (ret)
+		kfree(freq_table);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_init_cpufreq_table);
+
+/**
+ * dev_pm_opp_free_cpufreq_table() - free the cpufreq table
+ * @dev:	device for which we do this operation
+ * @table:	table to free
+ *
+ * Free up the table allocated by dev_pm_opp_init_cpufreq_table
+ */
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
+				   struct cpufreq_frequency_table **table)
+{
+	if (!table)
+		return;
+
+	kfree(*table);
+	*table = NULL;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_free_cpufreq_table);
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index ecaaebf..0cd9b4d 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -182,11 +182,11 @@ static void cpufreq_stats_free_table(unsigned int cpu)
 
 static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
 {
-	unsigned int i, j, count = 0, ret = 0;
+	unsigned int i, count = 0, ret = 0;
 	struct cpufreq_stats *stat;
 	unsigned int alloc_size;
 	unsigned int cpu = policy->cpu;
-	struct cpufreq_frequency_table *table;
+	struct cpufreq_frequency_table *pos, *table;
 
 	table = cpufreq_frequency_get_table(cpu);
 	if (unlikely(!table))
@@ -205,12 +205,8 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
 	stat->cpu = cpu;
 	per_cpu(cpufreq_stats_table, cpu) = stat;
 
-	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
+	cpufreq_for_each_valid_entry(pos, table)
 		count++;
-	}
 
 	alloc_size = count * sizeof(int) + count * sizeof(u64);
 
@@ -228,15 +224,11 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
 #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
 	stat->trans_table = stat->freq_table + count;
 #endif
-	j = 0;
-	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
-		if (freq_table_get_index(stat, freq) == -1)
-			stat->freq_table[j++] = freq;
-	}
-	stat->state_num = j;
+	i = 0;
+	cpufreq_for_each_valid_entry(pos, table)
+		if (freq_table_get_index(stat, pos->frequency) == -1)
+			stat->freq_table[i++] = pos->frequency;
+	stat->state_num = i;
 	spin_lock(&cpufreq_stats_lock);
 	stat->last_time = get_jiffies_64();
 	stat->last_index = freq_table_get_index(stat, policy->cur);
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 412a78b..4bebc1b 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -45,7 +45,7 @@ static struct cpufreq_driver dbx500_cpufreq_driver = {
 
 static int dbx500_cpufreq_probe(struct platform_device *pdev)
 {
-	int i = 0;
+	struct cpufreq_frequency_table *pos;
 
 	freq_table = dev_get_platdata(&pdev->dev);
 	if (!freq_table) {
@@ -60,10 +60,8 @@ static int dbx500_cpufreq_probe(struct platform_device *pdev)
 	}
 
 	pr_info("dbx500-cpufreq: Available frequencies:\n");
-	while (freq_table[i].frequency != CPUFREQ_TABLE_END) {
-		pr_info("  %d Mhz\n", freq_table[i].frequency/1000);
-		i++;
-	}
+	cpufreq_for_each_entry(pos, freq_table)
+		pr_info("  %d Mhz\n", pos->frequency / 1000);
 
 	return cpufreq_register_driver(&dbx500_cpufreq_driver);
 }
diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index 7f5d2a6..1c06e78 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -147,7 +147,7 @@ static int elanfreq_target(struct cpufreq_policy *policy,
 static int elanfreq_cpu_init(struct cpufreq_policy *policy)
 {
 	struct cpuinfo_x86 *c = &cpu_data(0);
-	unsigned int i;
+	struct cpufreq_frequency_table *pos;
 
 	/* capability check */
 	if ((c->x86_vendor != X86_VENDOR_AMD) ||
@@ -159,10 +159,9 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
 		max_freq = elanfreq_get_cpu_frequency(0);
 
 	/* table init */
-	for (i = 0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) {
-		if (elanfreq_table[i].frequency > max_freq)
-			elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
-	}
+	cpufreq_for_each_entry(pos, elanfreq_table)
+		if (pos->frequency > max_freq)
+			pos->frequency = CPUFREQ_ENTRY_INVALID;
 
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index f99cfe2..c3e55aa 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -29,17 +29,16 @@ static unsigned int locking_frequency;
 static int exynos_cpufreq_get_index(unsigned int freq)
 {
 	struct cpufreq_frequency_table *freq_table = exynos_info->freq_table;
-	int index;
+	struct cpufreq_frequency_table *pos;
 
-	for (index = 0;
-		freq_table[index].frequency != CPUFREQ_TABLE_END; index++)
-		if (freq_table[index].frequency == freq)
+	cpufreq_for_each_entry(pos, freq_table)
+		if (pos->frequency == freq)
 			break;
 
-	if (freq_table[index].frequency == CPUFREQ_TABLE_END)
+	if (pos->frequency == CPUFREQ_TABLE_END)
 		return -EINVAL;
 
-	return index;
+	return pos - freq_table;
 }
 
 static int exynos_cpufreq_scale(unsigned int target_freq)
@@ -49,6 +48,7 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 	struct cpufreq_policy *policy = cpufreq_cpu_get(0);
 	unsigned int arm_volt, safe_arm_volt = 0;
 	unsigned int mpll_freq_khz = exynos_info->mpll_freq_khz;
+	struct device *dev = exynos_info->dev;
 	unsigned int old_freq;
 	int index, old_index;
 	int ret = 0;
@@ -90,8 +90,8 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 		/* Firstly, voltage up to increase frequency */
 		ret = regulator_set_voltage(arm_regulator, arm_volt, arm_volt);
 		if (ret) {
-			pr_err("%s: failed to set cpu voltage to %d\n",
-				__func__, arm_volt);
+			dev_err(dev, "failed to set cpu voltage to %d\n",
+				arm_volt);
 			return ret;
 		}
 	}
@@ -100,8 +100,8 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 		ret = regulator_set_voltage(arm_regulator, safe_arm_volt,
 				      safe_arm_volt);
 		if (ret) {
-			pr_err("%s: failed to set cpu voltage to %d\n",
-				__func__, safe_arm_volt);
+			dev_err(dev, "failed to set cpu voltage to %d\n",
+				safe_arm_volt);
 			return ret;
 		}
 	}
@@ -115,8 +115,8 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 		ret = regulator_set_voltage(arm_regulator, arm_volt,
 				arm_volt);
 		if (ret) {
-			pr_err("%s: failed to set cpu voltage to %d\n",
-				__func__, arm_volt);
+			dev_err(dev, "failed to set cpu voltage to %d\n",
+				arm_volt);
 			goto out;
 		}
 	}
@@ -163,6 +163,8 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
 	if (!exynos_info)
 		return -ENOMEM;
 
+	exynos_info->dev = &pdev->dev;
+
 	if (soc_is_exynos4210())
 		ret = exynos4210_cpufreq_init(exynos_info);
 	else if (soc_is_exynos4212() || soc_is_exynos4412())
@@ -176,13 +178,13 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
 		goto err_vdd_arm;
 
 	if (exynos_info->set_freq == NULL) {
-		pr_err("%s: No set_freq function (ERR)\n", __func__);
+		dev_err(&pdev->dev, "No set_freq function (ERR)\n");
 		goto err_vdd_arm;
 	}
 
 	arm_regulator = regulator_get(NULL, "vdd_arm");
 	if (IS_ERR(arm_regulator)) {
-		pr_err("%s: failed to get resource vdd_arm\n", __func__);
+		dev_err(&pdev->dev, "failed to get resource vdd_arm\n");
 		goto err_vdd_arm;
 	}
 
@@ -192,7 +194,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
 	if (!cpufreq_register_driver(&exynos_driver))
 		return 0;
 
-	pr_err("%s: failed to register cpufreq driver\n", __func__);
+	dev_err(&pdev->dev, "failed to register cpufreq driver\n");
 	regulator_put(arm_regulator);
 err_vdd_arm:
 	kfree(exynos_info);
diff --git a/drivers/cpufreq/exynos-cpufreq.h b/drivers/cpufreq/exynos-cpufreq.h
index 3ddade8..b72ff10 100644
--- a/drivers/cpufreq/exynos-cpufreq.h
+++ b/drivers/cpufreq/exynos-cpufreq.h
@@ -34,6 +34,7 @@ struct apll_freq {
 };
 
 struct exynos_dvfs_info {
+	struct device	*dev;
 	unsigned long	mpll_freq_khz;
 	unsigned int	pll_safe_idx;
 	struct clk	*cpu_clk;
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index a6b8214..f33f25b 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -114,25 +114,23 @@ static struct cpufreq_freqs freqs;
 
 static int init_div_table(void)
 {
-	struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table;
+	struct cpufreq_frequency_table *pos, *freq_tbl = dvfs_info->freq_table;
 	unsigned int tmp, clk_div, ema_div, freq, volt_id;
-	int i = 0;
 	struct dev_pm_opp *opp;
 
 	rcu_read_lock();
-	for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) {
-
+	cpufreq_for_each_entry(pos, freq_tbl) {
 		opp = dev_pm_opp_find_freq_exact(dvfs_info->dev,
-					freq_tbl[i].frequency * 1000, true);
+					pos->frequency * 1000, true);
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
 			dev_err(dvfs_info->dev,
 				"failed to find valid OPP for %u KHZ\n",
-				freq_tbl[i].frequency);
+				pos->frequency);
 			return PTR_ERR(opp);
 		}
 
-		freq = freq_tbl[i].frequency / 1000; /* In MHZ */
+		freq = pos->frequency / 1000; /* In MHZ */
 		clk_div = ((freq / CPU_DIV_FREQ_MAX) & P0_7_CPUCLKDEV_MASK)
 					<< P0_7_CPUCLKDEV_SHIFT;
 		clk_div |= ((freq / CPU_ATB_FREQ_MAX) & P0_7_ATBCLKDEV_MASK)
@@ -157,7 +155,8 @@ static int init_div_table(void)
 		tmp = (clk_div | ema_div | (volt_id << P0_7_VDD_SHIFT)
 			| ((freq / FREQ_UNIT) << P0_7_FREQ_SHIFT));
 
-		__raw_writel(tmp, dvfs_info->base + XMU_PMU_P0_7 + 4 * i);
+		__raw_writel(tmp, dvfs_info->base + XMU_PMU_P0_7 + 4 *
+						(pos - freq_tbl));
 	}
 
 	rcu_read_unlock();
@@ -166,8 +165,9 @@ static int init_div_table(void)
 
 static void exynos_enable_dvfs(unsigned int cur_frequency)
 {
-	unsigned int tmp, i, cpu;
+	unsigned int tmp, cpu;
 	struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table;
+	struct cpufreq_frequency_table *pos;
 	/* Disable DVFS */
 	__raw_writel(0,	dvfs_info->base + XMU_DVFS_CTRL);
 
@@ -182,15 +182,15 @@ static void exynos_enable_dvfs(unsigned int cur_frequency)
 	 __raw_writel(tmp, dvfs_info->base + XMU_PMUIRQEN);
 
 	/* Set initial performance index */
-	for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++)
-		if (freq_table[i].frequency == cur_frequency)
+	cpufreq_for_each_entry(pos, freq_table)
+		if (pos->frequency == cur_frequency)
 			break;
 
-	if (freq_table[i].frequency == CPUFREQ_TABLE_END) {
+	if (pos->frequency == CPUFREQ_TABLE_END) {
 		dev_crit(dvfs_info->dev, "Boot up frequency not supported\n");
 		/* Assign the highest frequency */
-		i = 0;
-		cur_frequency = freq_table[i].frequency;
+		pos = freq_table;
+		cur_frequency = pos->frequency;
 	}
 
 	dev_info(dvfs_info->dev, "Setting dvfs initial frequency = %uKHZ",
@@ -199,7 +199,7 @@ static void exynos_enable_dvfs(unsigned int cur_frequency)
 	for (cpu = 0; cpu < CONFIG_NR_CPUS; cpu++) {
 		tmp = __raw_readl(dvfs_info->base + XMU_C0_3_PSTATE + cpu * 4);
 		tmp &= ~(P_VALUE_MASK << C0_3_PSTATE_NEW_SHIFT);
-		tmp |= (i << C0_3_PSTATE_NEW_SHIFT);
+		tmp |= ((pos - freq_table) << C0_3_PSTATE_NEW_SHIFT);
 		__raw_writel(tmp, dvfs_info->base + XMU_C0_3_PSTATE + cpu * 4);
 	}
 
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index 08e7bbc..1632981 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -21,22 +21,19 @@
 int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
 				    struct cpufreq_frequency_table *table)
 {
+	struct cpufreq_frequency_table *pos;
 	unsigned int min_freq = ~0;
 	unsigned int max_freq = 0;
-	unsigned int i;
+	unsigned int freq;
 
-	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID) {
-			pr_debug("table entry %u is invalid, skipping\n", i);
+	cpufreq_for_each_valid_entry(pos, table) {
+		freq = pos->frequency;
 
-			continue;
-		}
 		if (!cpufreq_boost_enabled()
-		    && (table[i].flags & CPUFREQ_BOOST_FREQ))
+		    && (pos->flags & CPUFREQ_BOOST_FREQ))
 			continue;
 
-		pr_debug("table entry %u: %u kHz\n", i, freq);
+		pr_debug("table entry %u: %u kHz\n", (int)(pos - table), freq);
 		if (freq < min_freq)
 			min_freq = freq;
 		if (freq > max_freq)
@@ -57,7 +54,8 @@ EXPORT_SYMBOL_GPL(cpufreq_frequency_table_cpuinfo);
 int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 				   struct cpufreq_frequency_table *table)
 {
-	unsigned int next_larger = ~0, freq, i = 0;
+	struct cpufreq_frequency_table *pos;
+	unsigned int freq, next_larger = ~0;
 	bool found = false;
 
 	pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n",
@@ -65,9 +63,9 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 
 	cpufreq_verify_within_cpu_limits(policy);
 
-	for (; freq = table[i].frequency, freq != CPUFREQ_TABLE_END; i++) {
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
+	cpufreq_for_each_valid_entry(pos, table) {
+		freq = pos->frequency;
+
 		if ((freq >= policy->min) && (freq <= policy->max)) {
 			found = true;
 			break;
@@ -118,7 +116,8 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 		.driver_data = ~0,
 		.frequency = 0,
 	};
-	unsigned int i;
+	struct cpufreq_frequency_table *pos;
+	unsigned int freq, i = 0;
 
 	pr_debug("request for target %u kHz (relation: %u) for cpu %u\n",
 					target_freq, relation, policy->cpu);
@@ -132,15 +131,19 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 		break;
 	}
 
-	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
-		unsigned int freq = table[i].frequency;
-		if (freq == CPUFREQ_ENTRY_INVALID)
-			continue;
+	cpufreq_for_each_valid_entry(pos, table) {
+		freq = pos->frequency;
+
+		i = pos - table;
 		if ((freq < policy->min) || (freq > policy->max))
 			continue;
+		if (freq == target_freq) {
+			optimal.driver_data = i;
+			break;
+		}
 		switch (relation) {
 		case CPUFREQ_RELATION_H:
-			if (freq <= target_freq) {
+			if (freq < target_freq) {
 				if (freq >= optimal.frequency) {
 					optimal.frequency = freq;
 					optimal.driver_data = i;
@@ -153,7 +156,7 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 			}
 			break;
 		case CPUFREQ_RELATION_L:
-			if (freq >= target_freq) {
+			if (freq > target_freq) {
 				if (freq <= optimal.frequency) {
 					optimal.frequency = freq;
 					optimal.driver_data = i;
@@ -184,8 +187,7 @@ EXPORT_SYMBOL_GPL(cpufreq_frequency_table_target);
 int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
 		unsigned int freq)
 {
-	struct cpufreq_frequency_table *table;
-	int i;
+	struct cpufreq_frequency_table *pos, *table;
 
 	table = cpufreq_frequency_get_table(policy->cpu);
 	if (unlikely(!table)) {
@@ -193,10 +195,9 @@ int cpufreq_frequency_table_get_index(struct cpufreq_policy *policy,
 		return -ENOENT;
 	}
 
-	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
-		if (table[i].frequency == freq)
-			return i;
-	}
+	cpufreq_for_each_valid_entry(pos, table)
+		if (pos->frequency == freq)
+			return pos - table;
 
 	return -EINVAL;
 }
@@ -208,16 +209,13 @@ EXPORT_SYMBOL_GPL(cpufreq_frequency_table_get_index);
 static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf,
 				    bool show_boost)
 {
-	unsigned int i = 0;
 	ssize_t count = 0;
-	struct cpufreq_frequency_table *table = policy->freq_table;
+	struct cpufreq_frequency_table *pos, *table = policy->freq_table;
 
 	if (!table)
 		return -ENODEV;
 
-	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
-		if (table[i].frequency == CPUFREQ_ENTRY_INVALID)
-			continue;
+	cpufreq_for_each_valid_entry(pos, table) {
 		/*
 		 * show_boost = true and driver_data = BOOST freq
 		 * display BOOST freqs
@@ -229,10 +227,10 @@ static ssize_t show_available_freqs(struct cpufreq_policy *policy, char *buf,
 		 * show_boost = false and driver_data != BOOST freq
 		 * display NON BOOST freqs
 		 */
-		if (show_boost ^ (table[i].flags & CPUFREQ_BOOST_FREQ))
+		if (show_boost ^ (pos->flags & CPUFREQ_BOOST_FREQ))
 			continue;
 
-		count += sprintf(&buf[count], "%d ", table[i].frequency);
+		count += sprintf(&buf[count], "%d ", pos->frequency);
 	}
 	count += sprintf(&buf[count], "\n");
 
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index e27fca8..af366c2 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -9,7 +9,6 @@
 #include <linux/clk.h>
 #include <linux/cpu.h>
 #include <linux/cpufreq.h>
-#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/of.h>
@@ -170,25 +169,25 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	arm_clk = devm_clk_get(cpu_dev, "arm");
-	pll1_sys_clk = devm_clk_get(cpu_dev, "pll1_sys");
-	pll1_sw_clk = devm_clk_get(cpu_dev, "pll1_sw");
-	step_clk = devm_clk_get(cpu_dev, "step");
-	pll2_pfd2_396m_clk = devm_clk_get(cpu_dev, "pll2_pfd2_396m");
+	arm_clk = clk_get(cpu_dev, "arm");
+	pll1_sys_clk = clk_get(cpu_dev, "pll1_sys");
+	pll1_sw_clk = clk_get(cpu_dev, "pll1_sw");
+	step_clk = clk_get(cpu_dev, "step");
+	pll2_pfd2_396m_clk = clk_get(cpu_dev, "pll2_pfd2_396m");
 	if (IS_ERR(arm_clk) || IS_ERR(pll1_sys_clk) || IS_ERR(pll1_sw_clk) ||
 	    IS_ERR(step_clk) || IS_ERR(pll2_pfd2_396m_clk)) {
 		dev_err(cpu_dev, "failed to get clocks\n");
 		ret = -ENOENT;
-		goto put_node;
+		goto put_clk;
 	}
 
-	arm_reg = devm_regulator_get(cpu_dev, "arm");
-	pu_reg = devm_regulator_get(cpu_dev, "pu");
-	soc_reg = devm_regulator_get(cpu_dev, "soc");
+	arm_reg = regulator_get(cpu_dev, "arm");
+	pu_reg = regulator_get(cpu_dev, "pu");
+	soc_reg = regulator_get(cpu_dev, "soc");
 	if (IS_ERR(arm_reg) || IS_ERR(pu_reg) || IS_ERR(soc_reg)) {
 		dev_err(cpu_dev, "failed to get regulators\n");
 		ret = -ENOENT;
-		goto put_node;
+		goto put_reg;
 	}
 
 	/*
@@ -201,21 +200,21 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 		ret = of_init_opp_table(cpu_dev);
 		if (ret < 0) {
 			dev_err(cpu_dev, "failed to init OPP table: %d\n", ret);
-			goto put_node;
+			goto put_reg;
 		}
 
 		num = dev_pm_opp_get_opp_count(cpu_dev);
 		if (num < 0) {
 			ret = num;
 			dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
-			goto put_node;
+			goto put_reg;
 		}
 	}
 
 	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
 	if (ret) {
 		dev_err(cpu_dev, "failed to init cpufreq table: %d\n", ret);
-		goto put_node;
+		goto put_reg;
 	}
 
 	/* Make imx6_soc_volt array's size same as arm opp number */
@@ -301,7 +300,24 @@ soc_opp_out:
 
 free_freq_table:
 	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
-put_node:
+put_reg:
+	if (!IS_ERR(arm_reg))
+		regulator_put(arm_reg);
+	if (!IS_ERR(pu_reg))
+		regulator_put(pu_reg);
+	if (!IS_ERR(soc_reg))
+		regulator_put(soc_reg);
+put_clk:
+	if (!IS_ERR(arm_clk))
+		clk_put(arm_clk);
+	if (!IS_ERR(pll1_sys_clk))
+		clk_put(pll1_sys_clk);
+	if (!IS_ERR(pll1_sw_clk))
+		clk_put(pll1_sw_clk);
+	if (!IS_ERR(step_clk))
+		clk_put(step_clk);
+	if (!IS_ERR(pll2_pfd2_396m_clk))
+		clk_put(pll2_pfd2_396m_clk);
 	of_node_put(np);
 	return ret;
 }
@@ -310,6 +326,14 @@ static int imx6q_cpufreq_remove(struct platform_device *pdev)
 {
 	cpufreq_unregister_driver(&imx6q_cpufreq_driver);
 	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
+	regulator_put(arm_reg);
+	regulator_put(pu_reg);
+	regulator_put(soc_reg);
+	clk_put(arm_clk);
+	clk_put(pll1_sys_clk);
+	clk_put(pll1_sw_clk);
+	clk_put(step_clk);
+	clk_put(pll2_pfd2_396m_clk);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index db2e45b..aebd457 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -32,8 +32,6 @@
 #include <asm/msr.h>
 #include <asm/cpu_device_id.h>
 
-#define SAMPLE_COUNT		3
-
 #define BYT_RATIOS		0x66a
 #define BYT_VIDS		0x66b
 #define BYT_TURBO_RATIOS	0x66c
@@ -90,8 +88,6 @@ struct _pid {
 struct cpudata {
 	int cpu;
 
-	char name[64];
-
 	struct timer_list timer;
 
 	struct pstate_data pstate;
@@ -549,8 +545,6 @@ static inline void intel_pstate_pstate_decrease(struct cpudata *cpu, int steps)
 
 static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 {
-	sprintf(cpu->name, "Intel 2nd generation core");
-
 	cpu->pstate.min_pstate = pstate_funcs.get_min();
 	cpu->pstate.max_pstate = pstate_funcs.get_max();
 	cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
@@ -560,9 +554,9 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 	intel_pstate_set_pstate(cpu, cpu->pstate.min_pstate);
 }
 
-static inline void intel_pstate_calc_busy(struct cpudata *cpu,
-					struct sample *sample)
+static inline void intel_pstate_calc_busy(struct cpudata *cpu)
 {
+	struct sample *sample = &cpu->sample;
 	int64_t core_pct;
 	int32_t rem;
 
@@ -595,7 +589,7 @@ static inline void intel_pstate_sample(struct cpudata *cpu)
 	cpu->sample.aperf -= cpu->prev_aperf;
 	cpu->sample.mperf -= cpu->prev_mperf;
 
-	intel_pstate_calc_busy(cpu, &cpu->sample);
+	intel_pstate_calc_busy(cpu);
 
 	cpu->prev_aperf = aperf;
 	cpu->prev_mperf = mperf;
@@ -684,10 +678,13 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
 	ICPU(0x37, byt_params),
 	ICPU(0x3a, core_params),
 	ICPU(0x3c, core_params),
+	ICPU(0x3d, core_params),
 	ICPU(0x3e, core_params),
 	ICPU(0x3f, core_params),
 	ICPU(0x45, core_params),
 	ICPU(0x46, core_params),
+	ICPU(0x4f, core_params),
+	ICPU(0x56, core_params),
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 5c4369b..c913906 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -530,6 +530,7 @@ static int longhaul_get_ranges(void)
 
 static void longhaul_setup_voltagescaling(void)
 {
+	struct cpufreq_frequency_table *freq_pos;
 	union msr_longhaul longhaul;
 	struct mV_pos minvid, maxvid, vid;
 	unsigned int j, speed, pos, kHz_step, numvscales;
@@ -608,18 +609,16 @@ static void longhaul_setup_voltagescaling(void)
 	/* Calculate kHz for one voltage step */
 	kHz_step = (highest_speed - min_vid_speed) / numvscales;
 
-	j = 0;
-	while (longhaul_table[j].frequency != CPUFREQ_TABLE_END) {
-		speed = longhaul_table[j].frequency;
+	cpufreq_for_each_entry(freq_pos, longhaul_table) {
+		speed = freq_pos->frequency;
 		if (speed > min_vid_speed)
 			pos = (speed - min_vid_speed) / kHz_step + minvid.pos;
 		else
 			pos = minvid.pos;
-		longhaul_table[j].driver_data |= mV_vrm_table[pos] << 8;
+		freq_pos->driver_data |= mV_vrm_table[pos] << 8;
 		vid = vrm_mV_table[mV_vrm_table[pos]];
 		printk(KERN_INFO PFX "f: %d kHz, index: %d, vid: %d mV\n",
-				speed, j, vid.mV);
-		j++;
+			speed, (int)(freq_pos - longhaul_table), vid.mV);
 	}
 
 	can_scale_voltage = 1;
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 84c84b5..35dd4d7 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -136,9 +136,10 @@ void restore_astate(int cpu)
 
 static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
+	struct cpufreq_frequency_table *pos;
 	const u32 *max_freqp;
 	u32 max_freq;
-	int i, cur_astate;
+	int cur_astate;
 	struct resource res;
 	struct device_node *cpu, *dn;
 	int err = -ENODEV;
@@ -197,10 +198,9 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	pr_debug("initializing frequency table\n");
 
 	/* initialize frequency table */
-	for (i=0; pas_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) {
-		pas_freqs[i].frequency =
-			get_astate_freq(pas_freqs[i].driver_data) * 100000;
-		pr_debug("%d: %d\n", i, pas_freqs[i].frequency);
+	cpufreq_for_each_entry(pos, pas_freqs) {
+		pos->frequency = get_astate_freq(pos->driver_data) * 100000;
+		pr_debug("%d: %d\n", (int)(pos - pas_freqs), pos->frequency);
 	}
 
 	cur_astate = get_cur_astate(policy->cpu);
diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index 78904e6..c8012bc 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -151,6 +151,7 @@ static int powernow_k6_target(struct cpufreq_policy *policy,
 
 static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 {
+	struct cpufreq_frequency_table *pos;
 	unsigned int i, f;
 	unsigned khz;
 
@@ -168,12 +169,11 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 		}
 	}
 	if (param_max_multiplier) {
-		for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
-			if (clock_ratio[i].driver_data == param_max_multiplier) {
+		cpufreq_for_each_entry(pos, clock_ratio)
+			if (pos->driver_data == param_max_multiplier) {
 				max_multiplier = param_max_multiplier;
 				goto have_max_multiplier;
 			}
-		}
 		printk(KERN_ERR "powernow-k6: invalid max_multiplier parameter, valid parameters 20, 30, 35, 40, 45, 50, 55, 60\n");
 		return -EINVAL;
 	}
@@ -201,12 +201,12 @@ have_busfreq:
 	param_busfreq = busfreq * 10;
 
 	/* table init */
-	for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
-		f = clock_ratio[i].driver_data;
+	cpufreq_for_each_entry(pos, clock_ratio) {
+		f = pos->driver_data;
 		if (f > max_multiplier)
-			clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID;
+			pos->frequency = CPUFREQ_ENTRY_INVALID;
 		else
-			clock_ratio[i].frequency = busfreq * f;
+			pos->frequency = busfreq * f;
 	}
 
 	/* cpuinfo and default policy values */
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 1b6ae6b..f9ce7e4 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -27,6 +27,8 @@
  *  power and thermal data sheets, (e.g. 30417.pdf, 30430.pdf, 43375.pdf)
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/smp.h>
 #include <linux/module.h>
@@ -45,7 +47,6 @@
 #include <linux/mutex.h>
 #include <acpi/processor.h>
 
-#define PFX "powernow-k8: "
 #define VERSION "version 2.20.00"
 #include "powernow-k8.h"
 
@@ -161,7 +162,7 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
 	u32 i = 0;
 
 	if ((fid & INVALID_FID_MASK) || (data->currvid & INVALID_VID_MASK)) {
-		printk(KERN_ERR PFX "internal error - overflow on fid write\n");
+		pr_err("internal error - overflow on fid write\n");
 		return 1;
 	}
 
@@ -175,9 +176,7 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
 	do {
 		wrmsr(MSR_FIDVID_CTL, lo, data->plllock * PLL_LOCK_CONVERSION);
 		if (i++ > 100) {
-			printk(KERN_ERR PFX
-				"Hardware error - pending bit very stuck - "
-				"no further pstate changes possible\n");
+			pr_err("Hardware error - pending bit very stuck - no further pstate changes possible\n");
 			return 1;
 		}
 	} while (query_current_values_with_pending_wait(data));
@@ -185,15 +184,13 @@ static int write_new_fid(struct powernow_k8_data *data, u32 fid)
 	count_off_irt(data);
 
 	if (savevid != data->currvid) {
-		printk(KERN_ERR PFX
-			"vid change on fid trans, old 0x%x, new 0x%x\n",
-			savevid, data->currvid);
+		pr_err("vid change on fid trans, old 0x%x, new 0x%x\n",
+		       savevid, data->currvid);
 		return 1;
 	}
 
 	if (fid != data->currfid) {
-		printk(KERN_ERR PFX
-			"fid trans failed, fid 0x%x, curr 0x%x\n", fid,
+		pr_err("fid trans failed, fid 0x%x, curr 0x%x\n", fid,
 			data->currfid);
 		return 1;
 	}
@@ -209,7 +206,7 @@ static int write_new_vid(struct powernow_k8_data *data, u32 vid)
 	int i = 0;
 
 	if ((data->currfid & INVALID_FID_MASK) || (vid & INVALID_VID_MASK)) {
-		printk(KERN_ERR PFX "internal error - overflow on vid write\n");
+		pr_err("internal error - overflow on vid write\n");
 		return 1;
 	}
 
@@ -223,23 +220,19 @@ static int write_new_vid(struct powernow_k8_data *data, u32 vid)
 	do {
 		wrmsr(MSR_FIDVID_CTL, lo, STOP_GRANT_5NS);
 		if (i++ > 100) {
-			printk(KERN_ERR PFX "internal error - pending bit "
-					"very stuck - no further pstate "
-					"changes possible\n");
+			pr_err("internal error - pending bit very stuck - no further pstate changes possible\n");
 			return 1;
 		}
 	} while (query_current_values_with_pending_wait(data));
 
 	if (savefid != data->currfid) {
-		printk(KERN_ERR PFX "fid changed on vid trans, old "
-			"0x%x new 0x%x\n",
-		       savefid, data->currfid);
+		pr_err("fid changed on vid trans, old 0x%x new 0x%x\n",
+			savefid, data->currfid);
 		return 1;
 	}
 
 	if (vid != data->currvid) {
-		printk(KERN_ERR PFX "vid trans failed, vid 0x%x, "
-				"curr 0x%x\n",
+		pr_err("vid trans failed, vid 0x%x, curr 0x%x\n",
 				vid, data->currvid);
 		return 1;
 	}
@@ -283,8 +276,7 @@ static int transition_fid_vid(struct powernow_k8_data *data,
 		return 1;
 
 	if ((reqfid != data->currfid) || (reqvid != data->currvid)) {
-		printk(KERN_ERR PFX "failed (cpu%d): req 0x%x 0x%x, "
-				"curr 0x%x 0x%x\n",
+		pr_err("failed (cpu%d): req 0x%x 0x%x, curr 0x%x 0x%x\n",
 				smp_processor_id(),
 				reqfid, reqvid, data->currfid, data->currvid);
 		return 1;
@@ -304,8 +296,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data,
 	u32 savefid = data->currfid;
 	u32 maxvid, lo, rvomult = 1;
 
-	pr_debug("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, "
-		"reqvid 0x%x, rvo 0x%x\n",
+	pr_debug("ph1 (cpu%d): start, currfid 0x%x, currvid 0x%x, reqvid 0x%x, rvo 0x%x\n",
 		smp_processor_id(),
 		data->currfid, data->currvid, reqvid, data->rvo);
 
@@ -342,8 +333,7 @@ static int core_voltage_pre_transition(struct powernow_k8_data *data,
 		return 1;
 
 	if (savefid != data->currfid) {
-		printk(KERN_ERR PFX "ph1 err, currfid changed 0x%x\n",
-				data->currfid);
+		pr_err("ph1 err, currfid changed 0x%x\n", data->currfid);
 		return 1;
 	}
 
@@ -360,13 +350,11 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid)
 	u32 fid_interval, savevid = data->currvid;
 
 	if (data->currfid == reqfid) {
-		printk(KERN_ERR PFX "ph2 null fid transition 0x%x\n",
-				data->currfid);
+		pr_err("ph2 null fid transition 0x%x\n", data->currfid);
 		return 0;
 	}
 
-	pr_debug("ph2 (cpu%d): starting, currfid 0x%x, currvid 0x%x, "
-		"reqfid 0x%x\n",
+	pr_debug("ph2 (cpu%d): starting, currfid 0x%x, currvid 0x%x, reqfid 0x%x\n",
 		smp_processor_id(),
 		data->currfid, data->currvid, reqfid);
 
@@ -409,15 +397,13 @@ static int core_frequency_transition(struct powernow_k8_data *data, u32 reqfid)
 		return 1;
 
 	if (data->currfid != reqfid) {
-		printk(KERN_ERR PFX
-			"ph2: mismatch, failed fid transition, "
-			"curr 0x%x, req 0x%x\n",
+		pr_err("ph2: mismatch, failed fid transition, curr 0x%x, req 0x%x\n",
 			data->currfid, reqfid);
 		return 1;
 	}
 
 	if (savevid != data->currvid) {
-		printk(KERN_ERR PFX "ph2: vid changed, save 0x%x, curr 0x%x\n",
+		pr_err("ph2: vid changed, save 0x%x, curr 0x%x\n",
 			savevid, data->currvid);
 		return 1;
 	}
@@ -444,17 +430,14 @@ static int core_voltage_post_transition(struct powernow_k8_data *data,
 			return 1;
 
 		if (savefid != data->currfid) {
-			printk(KERN_ERR PFX
-			       "ph3: bad fid change, save 0x%x, curr 0x%x\n",
-			       savefid, data->currfid);
+			pr_err("ph3: bad fid change, save 0x%x, curr 0x%x\n",
+				savefid, data->currfid);
 			return 1;
 		}
 
 		if (data->currvid != reqvid) {
-			printk(KERN_ERR PFX
-			       "ph3: failed vid transition\n, "
-			       "req 0x%x, curr 0x%x",
-			       reqvid, data->currvid);
+			pr_err("ph3: failed vid transition\n, req 0x%x, curr 0x%x",
+				reqvid, data->currvid);
 			return 1;
 		}
 	}
@@ -498,23 +481,20 @@ static void check_supported_cpu(void *_rc)
 	if ((eax & CPUID_XFAM) == CPUID_XFAM_K8) {
 		if (((eax & CPUID_USE_XFAM_XMOD) != CPUID_USE_XFAM_XMOD) ||
 		    ((eax & CPUID_XMOD) > CPUID_XMOD_REV_MASK)) {
-			printk(KERN_INFO PFX
-				"Processor cpuid %x not supported\n", eax);
+			pr_info("Processor cpuid %x not supported\n", eax);
 			return;
 		}
 
 		eax = cpuid_eax(CPUID_GET_MAX_CAPABILITIES);
 		if (eax < CPUID_FREQ_VOLT_CAPABILITIES) {
-			printk(KERN_INFO PFX
-			       "No frequency change capabilities detected\n");
+			pr_info("No frequency change capabilities detected\n");
 			return;
 		}
 
 		cpuid(CPUID_FREQ_VOLT_CAPABILITIES, &eax, &ebx, &ecx, &edx);
 		if ((edx & P_STATE_TRANSITION_CAPABLE)
 			!= P_STATE_TRANSITION_CAPABLE) {
-			printk(KERN_INFO PFX
-				"Power state transitions not supported\n");
+			pr_info("Power state transitions not supported\n");
 			return;
 		}
 		*rc = 0;
@@ -529,43 +509,39 @@ static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst,
 
 	for (j = 0; j < data->numps; j++) {
 		if (pst[j].vid > LEAST_VID) {
-			printk(KERN_ERR FW_BUG PFX "vid %d invalid : 0x%x\n",
-			       j, pst[j].vid);
+			pr_err(FW_BUG "vid %d invalid : 0x%x\n", j,
+				pst[j].vid);
 			return -EINVAL;
 		}
 		if (pst[j].vid < data->rvo) {
 			/* vid + rvo >= 0 */
-			printk(KERN_ERR FW_BUG PFX "0 vid exceeded with pstate"
-			       " %d\n", j);
+			pr_err(FW_BUG "0 vid exceeded with pstate %d\n", j);
 			return -ENODEV;
 		}
 		if (pst[j].vid < maxvid + data->rvo) {
 			/* vid + rvo >= maxvid */
-			printk(KERN_ERR FW_BUG PFX "maxvid exceeded with pstate"
-			       " %d\n", j);
+			pr_err(FW_BUG "maxvid exceeded with pstate %d\n", j);
 			return -ENODEV;
 		}
 		if (pst[j].fid > MAX_FID) {
-			printk(KERN_ERR FW_BUG PFX "maxfid exceeded with pstate"
-			       " %d\n", j);
+			pr_err(FW_BUG "maxfid exceeded with pstate %d\n", j);
 			return -ENODEV;
 		}
 		if (j && (pst[j].fid < HI_FID_TABLE_BOTTOM)) {
 			/* Only first fid is allowed to be in "low" range */
-			printk(KERN_ERR FW_BUG PFX "two low fids - %d : "
-			       "0x%x\n", j, pst[j].fid);
+			pr_err(FW_BUG "two low fids - %d : 0x%x\n", j,
+				pst[j].fid);
 			return -EINVAL;
 		}
 		if (pst[j].fid < lastfid)
 			lastfid = pst[j].fid;
 	}
 	if (lastfid & 1) {
-		printk(KERN_ERR FW_BUG PFX "lastfid invalid\n");
+		pr_err(FW_BUG "lastfid invalid\n");
 		return -EINVAL;
 	}
 	if (lastfid > LO_FID_TABLE_TOP)
-		printk(KERN_INFO FW_BUG PFX
-			"first fid not from lo freq table\n");
+		pr_info(FW_BUG "first fid not from lo freq table\n");
 
 	return 0;
 }
@@ -582,16 +558,14 @@ static void print_basics(struct powernow_k8_data *data)
 	for (j = 0; j < data->numps; j++) {
 		if (data->powernow_table[j].frequency !=
 				CPUFREQ_ENTRY_INVALID) {
-				printk(KERN_INFO PFX
-					"fid 0x%x (%d MHz), vid 0x%x\n",
-					data->powernow_table[j].driver_data & 0xff,
-					data->powernow_table[j].frequency/1000,
-					data->powernow_table[j].driver_data >> 8);
+			pr_info("fid 0x%x (%d MHz), vid 0x%x\n",
+				data->powernow_table[j].driver_data & 0xff,
+				data->powernow_table[j].frequency/1000,
+				data->powernow_table[j].driver_data >> 8);
 		}
 	}
 	if (data->batps)
-		printk(KERN_INFO PFX "Only %d pstates on battery\n",
-				data->batps);
+		pr_info("Only %d pstates on battery\n", data->batps);
 }
 
 static int fill_powernow_table(struct powernow_k8_data *data,
@@ -602,21 +576,20 @@ static int fill_powernow_table(struct powernow_k8_data *data,
 
 	if (data->batps) {
 		/* use ACPI support to get full speed on mains power */
-		printk(KERN_WARNING PFX
-			"Only %d pstates usable (use ACPI driver for full "
-			"range\n", data->batps);
+		pr_warn("Only %d pstates usable (use ACPI driver for full range\n",
+			data->batps);
 		data->numps = data->batps;
 	}
 
 	for (j = 1; j < data->numps; j++) {
 		if (pst[j-1].fid >= pst[j].fid) {
-			printk(KERN_ERR PFX "PST out of sequence\n");
+			pr_err("PST out of sequence\n");
 			return -EINVAL;
 		}
 	}
 
 	if (data->numps < 2) {
-		printk(KERN_ERR PFX "no p states to transition\n");
+		pr_err("no p states to transition\n");
 		return -ENODEV;
 	}
 
@@ -626,7 +599,7 @@ static int fill_powernow_table(struct powernow_k8_data *data,
 	powernow_table = kzalloc((sizeof(*powernow_table)
 		* (data->numps + 1)), GFP_KERNEL);
 	if (!powernow_table) {
-		printk(KERN_ERR PFX "powernow_table memory alloc failure\n");
+		pr_err("powernow_table memory alloc failure\n");
 		return -ENOMEM;
 	}
 
@@ -681,13 +654,13 @@ static int find_psb_table(struct powernow_k8_data *data)
 
 		pr_debug("table vers: 0x%x\n", psb->tableversion);
 		if (psb->tableversion != PSB_VERSION_1_4) {
-			printk(KERN_ERR FW_BUG PFX "PSB table is not v1.4\n");
+			pr_err(FW_BUG "PSB table is not v1.4\n");
 			return -ENODEV;
 		}
 
 		pr_debug("flags: 0x%x\n", psb->flags1);
 		if (psb->flags1) {
-			printk(KERN_ERR FW_BUG PFX "unknown flags\n");
+			pr_err(FW_BUG "unknown flags\n");
 			return -ENODEV;
 		}
 
@@ -716,7 +689,7 @@ static int find_psb_table(struct powernow_k8_data *data)
 				cpst = 1;
 		}
 		if (cpst != 1) {
-			printk(KERN_ERR FW_BUG PFX "numpst must be 1\n");
+			pr_err(FW_BUG "numpst must be 1\n");
 			return -ENODEV;
 		}
 
@@ -742,9 +715,8 @@ static int find_psb_table(struct powernow_k8_data *data)
 	 * BIOS and Kernel Developer's Guide, which is available on
 	 * www.amd.com
 	 */
-	printk(KERN_ERR FW_BUG PFX "No PSB or ACPI _PSS objects\n");
-	printk(KERN_ERR PFX "Make sure that your BIOS is up to date"
-		" and Cool'N'Quiet support is enabled in BIOS setup\n");
+	pr_err(FW_BUG "No PSB or ACPI _PSS objects\n");
+	pr_err("Make sure that your BIOS is up to date and Cool'N'Quiet support is enabled in BIOS setup\n");
 	return -ENODEV;
 }
 
@@ -819,8 +791,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 	acpi_processor_notify_smm(THIS_MODULE);
 
 	if (!zalloc_cpumask_var(&data->acpi_data.shared_cpu_map, GFP_KERNEL)) {
-		printk(KERN_ERR PFX
-				"unable to alloc powernow_k8_data cpumask\n");
+		pr_err("unable to alloc powernow_k8_data cpumask\n");
 		ret_val = -ENOMEM;
 		goto err_out_mem;
 	}
@@ -885,9 +856,8 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
 		}
 
 		if (freq != (data->acpi_data.states[i].core_frequency * 1000)) {
-			printk(KERN_INFO PFX "invalid freq entries "
-				"%u kHz vs. %u kHz\n", freq,
-				(unsigned int)
+			pr_info("invalid freq entries %u kHz vs. %u kHz\n",
+				freq, (unsigned int)
 				(data->acpi_data.states[i].core_frequency
 				 * 1000));
 			invalidate_entry(powernow_table, i);
@@ -916,7 +886,7 @@ static int get_transition_latency(struct powernow_k8_data *data)
 			max_latency = cur_latency;
 	}
 	if (max_latency == 0) {
-		pr_err(FW_WARN PFX "Invalid zero transition latency\n");
+		pr_err(FW_WARN "Invalid zero transition latency\n");
 		max_latency = 1;
 	}
 	/* value in usecs, needs to be in nanoseconds */
@@ -991,7 +961,7 @@ static long powernowk8_target_fn(void *arg)
 	checkvid = data->currvid;
 
 	if (pending_bit_stuck()) {
-		printk(KERN_ERR PFX "failing targ, change pending bit set\n");
+		pr_err("failing targ, change pending bit set\n");
 		return -EIO;
 	}
 
@@ -1003,12 +973,11 @@ static long powernowk8_target_fn(void *arg)
 		return -EIO;
 
 	pr_debug("targ: curr fid 0x%x, vid 0x%x\n",
-		 data->currfid, data->currvid);
+		data->currfid, data->currvid);
 
 	if ((checkvid != data->currvid) ||
 	    (checkfid != data->currfid)) {
-		pr_info(PFX
-		       "error - out of sync, fix 0x%x 0x%x, vid 0x%x 0x%x\n",
+		pr_info("error - out of sync, fix 0x%x 0x%x, vid 0x%x 0x%x\n",
 		       checkfid, data->currfid,
 		       checkvid, data->currvid);
 	}
@@ -1020,7 +989,7 @@ static long powernowk8_target_fn(void *arg)
 	ret = transition_frequency_fidvid(data, newstate);
 
 	if (ret) {
-		printk(KERN_ERR PFX "transition frequency failed\n");
+		pr_err("transition frequency failed\n");
 		mutex_unlock(&fidvid_mutex);
 		return 1;
 	}
@@ -1049,7 +1018,7 @@ static void powernowk8_cpu_init_on_cpu(void *_init_on_cpu)
 	struct init_on_cpu *init_on_cpu = _init_on_cpu;
 
 	if (pending_bit_stuck()) {
-		printk(KERN_ERR PFX "failing init, change pending bit set\n");
+		pr_err("failing init, change pending bit set\n");
 		init_on_cpu->rc = -ENODEV;
 		return;
 	}
@@ -1064,11 +1033,10 @@ static void powernowk8_cpu_init_on_cpu(void *_init_on_cpu)
 	init_on_cpu->rc = 0;
 }
 
-static const char missing_pss_msg[] =
-	KERN_ERR
-	FW_BUG PFX "No compatible ACPI _PSS objects found.\n"
-	FW_BUG PFX "First, make sure Cool'N'Quiet is enabled in the BIOS.\n"
-	FW_BUG PFX "If that doesn't help, try upgrading your BIOS.\n";
+#define MISSING_PSS_MSG \
+	FW_BUG "No compatible ACPI _PSS objects found.\n" \
+	FW_BUG "First, make sure Cool'N'Quiet is enabled in the BIOS.\n" \
+	FW_BUG "If that doesn't help, try upgrading your BIOS.\n"
 
 /* per CPU init entry point to the driver */
 static int powernowk8_cpu_init(struct cpufreq_policy *pol)
@@ -1083,7 +1051,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data) {
-		printk(KERN_ERR PFX "unable to alloc powernow_k8_data");
+		pr_err("unable to alloc powernow_k8_data");
 		return -ENOMEM;
 	}
 
@@ -1095,13 +1063,11 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 		 * an UP version, and is deprecated by AMD.
 		 */
 		if (num_online_cpus() != 1) {
-			printk_once(missing_pss_msg);
+			pr_err_once(MISSING_PSS_MSG);
 			goto err_out;
 		}
 		if (pol->cpu != 0) {
-			printk(KERN_ERR FW_BUG PFX "No ACPI _PSS objects for "
-			       "CPU other than CPU0. Complain to your BIOS "
-			       "vendor.\n");
+			pr_err(FW_BUG "No ACPI _PSS objects for CPU other than CPU0. Complain to your BIOS vendor.\n");
 			goto err_out;
 		}
 		rc = find_psb_table(data);
@@ -1129,7 +1095,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 
 	/* min/max the cpu is capable of */
 	if (cpufreq_table_validate_and_show(pol, data->powernow_table)) {
-		printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n");
+		pr_err(FW_BUG "invalid powernow_table\n");
 		powernow_k8_cpu_exit_acpi(data);
 		kfree(data->powernow_table);
 		kfree(data);
@@ -1137,7 +1103,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 	}
 
 	pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n",
-		 data->currfid, data->currvid);
+		data->currfid, data->currvid);
 
 	/* Point all the CPUs in this policy to the same data */
 	for_each_cpu(cpu, pol->cpus)
@@ -1220,12 +1186,12 @@ static void __request_acpi_cpufreq(void)
 		goto request;
 
 	if (strncmp(cur_drv, drv, min_t(size_t, strlen(cur_drv), strlen(drv))))
-		pr_warn(PFX "WTF driver: %s\n", cur_drv);
+		pr_warn("WTF driver: %s\n", cur_drv);
 
 	return;
 
  request:
-	pr_warn(PFX "This CPU is not supported anymore, using acpi-cpufreq instead.\n");
+	pr_warn("This CPU is not supported anymore, using acpi-cpufreq instead.\n");
 	request_module(drv);
 }
 
@@ -1260,7 +1226,7 @@ static int powernowk8_init(void)
 	if (ret)
 		return ret;
 
-	pr_info(PFX "Found %d %s (%d cpu cores) (" VERSION ")\n",
+	pr_info("Found %d %s (%d cpu cores) (" VERSION ")\n",
 		num_online_nodes(), boot_cpu_data.x86_model_id, supported_cpus);
 
 	return ret;
@@ -1274,8 +1240,8 @@ static void __exit powernowk8_exit(void)
 	cpufreq_unregister_driver(&cpufreq_amd64_driver);
 }
 
-MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com> and "
-		"Mark Langsdorf <mark.langsdorf@amd.com>");
+MODULE_AUTHOR("Paul Devriendt <paul.devriendt@amd.com>");
+MODULE_AUTHOR("Mark Langsdorf <mark.langsdorf@amd.com>");
 MODULE_DESCRIPTION("AMD Athlon 64 and Opteron processor frequency driver.");
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/cpufreq/powernow-k8.h b/drivers/cpufreq/powernow-k8.h
index 79329d4..45ce11e 100644
--- a/drivers/cpufreq/powernow-k8.h
+++ b/drivers/cpufreq/powernow-k8.h
@@ -19,7 +19,7 @@ struct powernow_k8_data {
 	u32 vidmvs;  /* usable value calculated from mvs */
 	u32 vstable; /* voltage stabilization time, units 20 us */
 	u32 plllock; /* pll lock time, units 1 us */
-        u32 exttype; /* extended interface = 1 */
+	u32 exttype; /* extended interface = 1 */
 
 	/* keep track of the current fid / vid or pstate */
 	u32 currvid;
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index af49688..bb1d08d 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -235,7 +235,7 @@ static void powernv_read_cpu_freq(void *arg)
  * firmware for CPU 'cpu'. This value is reported through the sysfs
  * file cpuinfo_cur_freq.
  */
-unsigned int powernv_cpufreq_get(unsigned int cpu)
+static unsigned int powernv_cpufreq_get(unsigned int cpu)
 {
 	struct powernv_smp_call_data freq_data;
 
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index 5be8a48..5a4c5a6 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -67,9 +67,10 @@ static int set_pmode(unsigned int cpu, unsigned int slow_mode)
 
 static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
+	struct cpufreq_frequency_table *pos;
 	const u32 *max_freqp;
 	u32 max_freq;
-	int i, cur_pmode;
+	int cur_pmode;
 	struct device_node *cpu;
 
 	cpu = of_get_cpu_node(policy->cpu, NULL);
@@ -102,9 +103,9 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	pr_debug("initializing frequency table\n");
 
 	/* initialize frequency table */
-	for (i=0; cbe_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) {
-		cbe_freqs[i].frequency = max_freq / cbe_freqs[i].driver_data;
-		pr_debug("%d: %d\n", i, cbe_freqs[i].frequency);
+	cpufreq_for_each_entry(pos, cbe_freqs) {
+		pos->frequency = max_freq / pos->driver_data;
+		pr_debug("%d: %d\n", (int)(pos - cbe_freqs), pos->frequency);
 	}
 
 	/* if DEBUG is enabled set_pmode() measures the latency
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 4626f90..2fd53ea 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -266,7 +266,7 @@ out:
 static void __init s3c2416_cpufreq_cfg_regulator(struct s3c2416_data *s3c_freq)
 {
 	int count, v, i, found;
-	struct cpufreq_frequency_table *freq;
+	struct cpufreq_frequency_table *pos;
 	struct s3c2416_dvfs *dvfs;
 
 	count = regulator_count_voltages(s3c_freq->vddarm);
@@ -275,12 +275,11 @@ static void __init s3c2416_cpufreq_cfg_regulator(struct s3c2416_data *s3c_freq)
 		return;
 	}
 
-	freq = s3c_freq->freq_table;
-	while (count > 0 && freq->frequency != CPUFREQ_TABLE_END) {
-		if (freq->frequency == CPUFREQ_ENTRY_INVALID)
-			continue;
+	if (!count)
+		goto out;
 
-		dvfs = &s3c2416_dvfs_table[freq->driver_data];
+	cpufreq_for_each_valid_entry(pos, s3c_freq->freq_table) {
+		dvfs = &s3c2416_dvfs_table[pos->driver_data];
 		found = 0;
 
 		/* Check only the min-voltage, more is always ok on S3C2416 */
@@ -292,13 +291,12 @@ static void __init s3c2416_cpufreq_cfg_regulator(struct s3c2416_data *s3c_freq)
 
 		if (!found) {
 			pr_debug("cpufreq: %dkHz unsupported by regulator\n",
-				 freq->frequency);
-			freq->frequency = CPUFREQ_ENTRY_INVALID;
+				 pos->frequency);
+			pos->frequency = CPUFREQ_ENTRY_INVALID;
 		}
-
-		freq++;
 	}
 
+out:
 	/* Guessed */
 	s3c_freq->regulator_latency = 1 * 1000 * 1000;
 }
@@ -338,7 +336,7 @@ static struct notifier_block s3c2416_cpufreq_reboot_notifier = {
 static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
 {
 	struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
-	struct cpufreq_frequency_table *freq;
+	struct cpufreq_frequency_table *pos;
 	struct clk *msysclk;
 	unsigned long rate;
 	int ret;
@@ -427,31 +425,27 @@ static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
 	s3c_freq->regulator_latency = 0;
 #endif
 
-	freq = s3c_freq->freq_table;
-	while (freq->frequency != CPUFREQ_TABLE_END) {
+	cpufreq_for_each_entry(pos, s3c_freq->freq_table) {
 		/* special handling for dvs mode */
-		if (freq->driver_data == 0) {
+		if (pos->driver_data == 0) {
 			if (!s3c_freq->hclk) {
 				pr_debug("cpufreq: %dkHz unsupported as it would need unavailable dvs mode\n",
-					 freq->frequency);
-				freq->frequency = CPUFREQ_ENTRY_INVALID;
+					 pos->frequency);
+				pos->frequency = CPUFREQ_ENTRY_INVALID;
 			} else {
-				freq++;
 				continue;
 			}
 		}
 
 		/* Check for frequencies we can generate */
 		rate = clk_round_rate(s3c_freq->armdiv,
-				      freq->frequency * 1000);
+				      pos->frequency * 1000);
 		rate /= 1000;
-		if (rate != freq->frequency) {
+		if (rate != pos->frequency) {
 			pr_debug("cpufreq: %dkHz unsupported by clock (clk_round_rate return %lu)\n",
-				 freq->frequency, rate);
-			freq->frequency = CPUFREQ_ENTRY_INVALID;
+				pos->frequency, rate);
+			pos->frequency = CPUFREQ_ENTRY_INVALID;
 		}
-
-		freq++;
 	}
 
 	/* Datasheet says PLL stabalisation time must be at least 300us,
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index ff7d3ec..176e84c 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -118,11 +118,10 @@ static void __init s3c64xx_cpufreq_config_regulator(void)
 		pr_err("Unable to check supported voltages\n");
 	}
 
-	freq = s3c64xx_freq_table;
-	while (count > 0 && freq->frequency != CPUFREQ_TABLE_END) {
-		if (freq->frequency == CPUFREQ_ENTRY_INVALID)
-			continue;
+	if (!count)
+		goto out;
 
+	cpufreq_for_each_valid_entry(freq, s3c64xx_freq_table) {
 		dvfs = &s3c64xx_dvfs_table[freq->driver_data];
 		found = 0;
 
@@ -137,10 +136,9 @@ static void __init s3c64xx_cpufreq_config_regulator(void)
 				 freq->frequency);
 			freq->frequency = CPUFREQ_ENTRY_INVALID;
 		}
-
-		freq++;
 	}
 
+out:
 	/* Guess based on having to do an I2C/SPI write; in future we
 	 * will be able to query the regulator performance here. */
 	regulator_latency = 1 * 1000 * 1000;
@@ -179,8 +177,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 	}
 #endif
 
-	freq = s3c64xx_freq_table;
-	while (freq->frequency != CPUFREQ_TABLE_END) {
+	cpufreq_for_each_entry(freq, s3c64xx_freq_table) {
 		unsigned long r;
 
 		/* Check for frequencies we can generate */
@@ -196,8 +193,6 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 		 * frequency is the maximum we can support. */
 		if (!vddarm && freq->frequency > clk_get_rate(policy->clk) / 1000)
 			freq->frequency = CPUFREQ_ENTRY_INVALID;
-
-		freq++;
 	}
 
 	/* Datasheet says PLL stabalisation time (if we were to use
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index ab2c1a4..19a10b8 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -175,10 +175,8 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
 	mutex_lock(&set_freq_lock);
 
 	if (no_cpufreq_access) {
-#ifdef CONFIG_PM_VERBOSE
-		pr_err("%s:%d denied access to %s as it is disabled"
-				"temporarily\n", __FILE__, __LINE__, __func__);
-#endif
+		pr_err("Denied access to %s as it is disabled temporarily\n",
+		       __func__);
 		ret = -EINVAL;
 		goto exit;
 	}
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 6723f03..7d4a315 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -28,7 +28,7 @@
 #include <asm/cpu_device_id.h>
 
 #define PFX		"speedstep-centrino: "
-#define MAINTAINER	"cpufreq@vger.kernel.org"
+#define MAINTAINER	"linux-pm@vger.kernel.org"
 
 #define INTEL_MSR_RANGE	(0xffff)
 
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index 63f0059..6e774c6 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -82,9 +82,9 @@ out:
 	return ret;
 }
 
-static int tegra_update_cpu_speed(struct cpufreq_policy *policy,
-		unsigned long rate)
+static int tegra_target(struct cpufreq_policy *policy, unsigned int index)
 {
+	unsigned long rate = freq_table[index].frequency;
 	int ret = 0;
 
 	/*
@@ -106,11 +106,6 @@ static int tegra_update_cpu_speed(struct cpufreq_policy *policy,
 	return ret;
 }
 
-static int tegra_target(struct cpufreq_policy *policy, unsigned int index)
-{
-	return tegra_update_cpu_speed(policy, freq_table[index].frequency);
-}
-
 static int tegra_cpu_init(struct cpufreq_policy *policy)
 {
 	int ret;