From 5d69030db5c93d0521174ef0d3d5d3bceeb04e42 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Tue, 14 May 2013 19:08:50 +0530
Subject: cpufreq: tegra: Don't initialize .index field of
 cpufreq_frequency_table

The Tegra cpufreq driver doesn't use .index field of
cpufreq_frequency_table and so we don't need to initialize it.
Don't initialize it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/tegra-cpufreq.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

(limited to 'drivers')

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index c74c0e130ef4..81561be17e8c 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -28,17 +28,16 @@
 #include <linux/io.h>
 #include <linux/suspend.h>
 
-/* Frequency table index must be sequential starting at 0 */
 static struct cpufreq_frequency_table freq_table[] = {
-	{ 0, 216000 },
-	{ 1, 312000 },
-	{ 2, 456000 },
-	{ 3, 608000 },
-	{ 4, 760000 },
-	{ 5, 816000 },
-	{ 6, 912000 },
-	{ 7, 1000000 },
-	{ 8, CPUFREQ_TABLE_END },
+	{ .frequency = 216000 },
+	{ .frequency = 312000 },
+	{ .frequency = 456000 },
+	{ .frequency = 608000 },
+	{ .frequency = 760000 },
+	{ .frequency = 816000 },
+	{ .frequency = 912000 },
+	{ .frequency = 1000000 },
+	{ .frequency = CPUFREQ_TABLE_END },
 };
 
 #define NUM_CPUS	2
-- 
cgit v1.2.3


From 3f869d6d41d032392abafe17ea5257a2514a24a7 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 16 May 2013 05:09:56 +0000
Subject: cpufreq: Add EXPORT_SYMBOL_GPL for have_governor_per_policy

This patch adds: EXPORT_SYMBOL_GPL(have_governor_per_policy), so that
this routine can be used by modules too.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers')

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 2d53f47d1747..2f254691ed1f 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -132,6 +132,7 @@ bool have_governor_per_policy(void)
 {
 	return cpufreq_driver->have_governor_per_policy;
 }
+EXPORT_SYMBOL_GPL(have_governor_per_policy);
 
 static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
 {
-- 
cgit v1.2.3


From 944e9a0316e60bc5bc122e46c1fde36e5f6e9f56 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 16 May 2013 05:09:57 +0000
Subject: cpufreq: governors: Move get_governor_parent_kobj() to cpufreq.c

get_governor_parent_kobj() can be used by any governor, generic
cpufreq governors or platform specific ones and so must be present in
cpufreq.c instead of cpufreq_governor.c.

This patch moves it to cpufreq.c. This also adds
EXPORT_SYMBOL_GPL(get_governor_parent_kobj) so that modules can use
this function too.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c          | 9 +++++++++
 drivers/cpufreq/cpufreq_governor.c | 8 --------
 2 files changed, 9 insertions(+), 8 deletions(-)

(limited to 'drivers')

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 2f254691ed1f..3faf62bdbad0 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -134,6 +134,15 @@ bool have_governor_per_policy(void)
 }
 EXPORT_SYMBOL_GPL(have_governor_per_policy);
 
+struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy)
+{
+	if (have_governor_per_policy())
+		return &policy->kobj;
+	else
+		return cpufreq_global_kobject;
+}
+EXPORT_SYMBOL_GPL(get_governor_parent_kobj);
+
 static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
 {
 	struct cpufreq_policy *data;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 5af40ad82d23..d1421b498c76 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -29,14 +29,6 @@
 
 #include "cpufreq_governor.h"
 
-static struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy)
-{
-	if (have_governor_per_policy())
-		return &policy->kobj;
-	else
-		return cpufreq_global_kobject;
-}
-
 static struct attribute_group *get_sysfs_attr(struct dbs_data *dbs_data)
 {
 	if (have_governor_per_policy())
-- 
cgit v1.2.3


From 72a4ce340a7ebf39e1c6fdc8f5feb4f974d6c635 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Fri, 17 May 2013 11:26:32 +0000
Subject: cpufreq: Move get_cpu_idle_time() to cpufreq.c

Governors other than ondemand and conservative can also use
get_cpu_idle_time() and they aren't required to compile
cpufreq_governor.c. So, move these independent routines to
cpufreq.c instead.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c          | 38 ++++++++++++++++++++++++++++++++++++++
 drivers/cpufreq/cpufreq_governor.c | 36 ------------------------------------
 drivers/cpufreq/cpufreq_governor.h |  1 -
 3 files changed, 38 insertions(+), 37 deletions(-)

(limited to 'drivers')

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 3faf62bdbad0..c6ab21880c07 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -17,7 +17,9 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <asm/cputime.h>
 #include <linux/kernel.h>
+#include <linux/kernel_stat.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/notifier.h>
@@ -25,6 +27,7 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
+#include <linux/tick.h>
 #include <linux/device.h>
 #include <linux/slab.h>
 #include <linux/cpu.h>
@@ -143,6 +146,41 @@ struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy)
 }
 EXPORT_SYMBOL_GPL(get_governor_parent_kobj);
 
+static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
+{
+	u64 idle_time;
+	u64 cur_wall_time;
+	u64 busy_time;
+
+	cur_wall_time = jiffies64_to_cputime64(get_jiffies_64());
+
+	busy_time = kcpustat_cpu(cpu).cpustat[CPUTIME_USER];
+	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SYSTEM];
+	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_IRQ];
+	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SOFTIRQ];
+	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_STEAL];
+	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
+
+	idle_time = cur_wall_time - busy_time;
+	if (wall)
+		*wall = cputime_to_usecs(cur_wall_time);
+
+	return cputime_to_usecs(idle_time);
+}
+
+u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
+{
+	u64 idle_time = get_cpu_idle_time_us(cpu, io_busy ? wall : NULL);
+
+	if (idle_time == -1ULL)
+		return get_cpu_idle_time_jiffy(cpu, wall);
+	else if (!io_busy)
+		idle_time += get_cpu_iowait_time_us(cpu, wall);
+
+	return idle_time;
+}
+EXPORT_SYMBOL_GPL(get_cpu_idle_time);
+
 static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
 {
 	struct cpufreq_policy *data;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index d1421b498c76..b6cfd55d8266 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -23,7 +23,6 @@
 #include <linux/kernel_stat.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
-#include <linux/tick.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
 
@@ -37,41 +36,6 @@ static struct attribute_group *get_sysfs_attr(struct dbs_data *dbs_data)
 		return dbs_data->cdata->attr_group_gov_sys;
 }
 
-static inline u64 get_cpu_idle_time_jiffy(unsigned int cpu, u64 *wall)
-{
-	u64 idle_time;
-	u64 cur_wall_time;
-	u64 busy_time;
-
-	cur_wall_time = jiffies64_to_cputime64(get_jiffies_64());
-
-	busy_time = kcpustat_cpu(cpu).cpustat[CPUTIME_USER];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SYSTEM];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_IRQ];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_SOFTIRQ];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_STEAL];
-	busy_time += kcpustat_cpu(cpu).cpustat[CPUTIME_NICE];
-
-	idle_time = cur_wall_time - busy_time;
-	if (wall)
-		*wall = cputime_to_usecs(cur_wall_time);
-
-	return cputime_to_usecs(idle_time);
-}
-
-u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
-{
-	u64 idle_time = get_cpu_idle_time_us(cpu, io_busy ? wall : NULL);
-
-	if (idle_time == -1ULL)
-		return get_cpu_idle_time_jiffy(cpu, wall);
-	else if (!io_busy)
-		idle_time += get_cpu_iowait_time_us(cpu, wall);
-
-	return idle_time;
-}
-EXPORT_SYMBOL_GPL(get_cpu_idle_time);
-
 void dbs_check_cpu(struct dbs_data *dbs_data, int cpu)
 {
 	struct cpu_dbs_common_info *cdbs = dbs_data->cdata->get_cpu_cdbs(cpu);
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index e16a96130cb3..e7bbf767380d 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -256,7 +256,6 @@ static ssize_t show_sampling_rate_min_gov_pol				\
 	return sprintf(buf, "%u\n", dbs_data->min_sampling_rate);	\
 }
 
-u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy);
 void dbs_check_cpu(struct dbs_data *dbs_data, int cpu);
 bool need_load_eval(struct cpu_dbs_common_info *cdbs,
 		unsigned int sampling_rate);
-- 
cgit v1.2.3


From 2361be23666232dbb4851a527f466c4cbf5340fc Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Fri, 17 May 2013 16:09:09 +0530
Subject: cpufreq: Don't create empty /sys/devices/system/cpu/cpufreq directory

When we don't have any file in cpu/cpufreq directory we shouldn't
create it. Specially with the introduction of per-policy governor
instance patchset, even governors are moved to
cpu/cpu*/cpufreq/governor-name directory and so this directory is
just not required.

Lets have it only when required.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/acpi-cpufreq.c     |  4 ++--
 drivers/cpufreq/cpufreq.c          | 48 ++++++++++++++++++++++++++++++++++----
 drivers/cpufreq/cpufreq_governor.c |  6 +++++
 3 files changed, 52 insertions(+), 6 deletions(-)

(limited to 'drivers')

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 11b8b4b54ceb..8c02622b35a4 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -947,7 +947,7 @@ static void __init acpi_cpufreq_boost_init(void)
 	/* We create the boost file in any case, though for systems without
 	 * hardware support it will be read-only and hardwired to return 0.
 	 */
-	if (sysfs_create_file(cpufreq_global_kobject, &(global_boost.attr)))
+	if (cpufreq_sysfs_create_file(&(global_boost.attr)))
 		pr_warn(PFX "could not register global boost sysfs file\n");
 	else
 		pr_debug("registered global boost sysfs file\n");
@@ -955,7 +955,7 @@ static void __init acpi_cpufreq_boost_init(void)
 
 static void __exit acpi_cpufreq_boost_exit(void)
 {
-	sysfs_remove_file(cpufreq_global_kobject, &(global_boost.attr));
+	cpufreq_sysfs_remove_file(&(global_boost.attr));
 
 	if (msrs) {
 		unregister_cpu_notifier(&boost_nb);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c6ab21880c07..ce9273a7b4e3 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -678,9 +678,6 @@ static struct attribute *default_attrs[] = {
 	NULL
 };
 
-struct kobject *cpufreq_global_kobject;
-EXPORT_SYMBOL(cpufreq_global_kobject);
-
 #define to_policy(k) container_of(k, struct cpufreq_policy, kobj)
 #define to_attr(a) container_of(a, struct freq_attr, attr)
 
@@ -751,6 +748,49 @@ static struct kobj_type ktype_cpufreq = {
 	.release	= cpufreq_sysfs_release,
 };
 
+struct kobject *cpufreq_global_kobject;
+EXPORT_SYMBOL(cpufreq_global_kobject);
+
+static int cpufreq_global_kobject_usage;
+
+int cpufreq_get_global_kobject(void)
+{
+	if (!cpufreq_global_kobject_usage++)
+		return kobject_add(cpufreq_global_kobject,
+				&cpu_subsys.dev_root->kobj, "%s", "cpufreq");
+
+	return 0;
+}
+EXPORT_SYMBOL(cpufreq_get_global_kobject);
+
+void cpufreq_put_global_kobject(void)
+{
+	if (!--cpufreq_global_kobject_usage)
+		kobject_del(cpufreq_global_kobject);
+}
+EXPORT_SYMBOL(cpufreq_put_global_kobject);
+
+int cpufreq_sysfs_create_file(const struct attribute *attr)
+{
+	int ret = cpufreq_get_global_kobject();
+
+	if (!ret) {
+		ret = sysfs_create_file(cpufreq_global_kobject, attr);
+		if (ret)
+			cpufreq_put_global_kobject();
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(cpufreq_sysfs_create_file);
+
+void cpufreq_sysfs_remove_file(const struct attribute *attr)
+{
+	sysfs_remove_file(cpufreq_global_kobject, attr);
+	cpufreq_put_global_kobject();
+}
+EXPORT_SYMBOL(cpufreq_sysfs_remove_file);
+
 /* symlink affected CPUs */
 static int cpufreq_add_dev_symlink(unsigned int cpu,
 				   struct cpufreq_policy *policy)
@@ -2020,7 +2060,7 @@ static int __init cpufreq_core_init(void)
 		init_rwsem(&per_cpu(cpu_policy_rwsem, cpu));
 	}
 
-	cpufreq_global_kobject = kobject_create_and_add("cpufreq", &cpu_subsys.dev_root->kobj);
+	cpufreq_global_kobject = kobject_create();
 	BUG_ON(!cpufreq_global_kobject);
 	register_syscore_ops(&cpufreq_syscore_ops);
 
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index b6cfd55d8266..7532570c42b4 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -231,6 +231,9 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			return rc;
 		}
 
+		if (!have_governor_per_policy())
+			WARN_ON(cpufreq_get_global_kobject());
+
 		rc = sysfs_create_group(get_governor_parent_kobj(policy),
 				get_sysfs_attr(dbs_data));
 		if (rc) {
@@ -269,6 +272,9 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 			sysfs_remove_group(get_governor_parent_kobj(policy),
 					get_sysfs_attr(dbs_data));
 
+			if (!have_governor_per_policy())
+				cpufreq_put_global_kobject();
+
 			if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
 				(policy->governor->initialized == 1)) {
 				struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
-- 
cgit v1.2.3


From 5070158804b5339c71809f5e673cea1cfacd804d Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Sat, 30 Mar 2013 16:25:15 +0530
Subject: cpufreq: rename index as driver_data in cpufreq_frequency_table

The "index" field of struct cpufreq_frequency_table was never an
index and isn't used at all by the cpufreq core.  It only is useful
for cpufreq drivers for their internal purposes.

Many people nowadays blindly set it in ascending order with the
assumption that the core will use it, which is a mistake.

Rename it to "driver_data" as that's what its purpose is. All of its
users are updated accordingly.

[rjw: Changelog]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/base/power/opp.c             |  4 ++--
 drivers/cpufreq/acpi-cpufreq.c       |  6 +++---
 drivers/cpufreq/blackfin-cpufreq.c   | 10 +++++-----
 drivers/cpufreq/e_powersaver.c       |  8 ++++----
 drivers/cpufreq/freq_table.c         | 26 +++++++++++++-------------
 drivers/cpufreq/ia64-acpi-cpufreq.c  |  2 +-
 drivers/cpufreq/kirkwood-cpufreq.c   |  2 +-
 drivers/cpufreq/longhaul.c           | 16 ++++++++--------
 drivers/cpufreq/loongson2_cpufreq.c  |  2 +-
 drivers/cpufreq/p4-clockmod.c        |  4 ++--
 drivers/cpufreq/powernow-k6.c        |  8 ++++----
 drivers/cpufreq/powernow-k7.c        | 16 ++++++++--------
 drivers/cpufreq/powernow-k8.c        | 18 +++++++++---------
 drivers/cpufreq/ppc_cbe_cpufreq.c    |  4 ++--
 drivers/cpufreq/pxa2xx-cpufreq.c     |  8 ++++----
 drivers/cpufreq/pxa3xx-cpufreq.c     |  4 ++--
 drivers/cpufreq/s3c2416-cpufreq.c    |  2 +-
 drivers/cpufreq/s3c64xx-cpufreq.c    |  2 +-
 drivers/cpufreq/sc520_freq.c         |  2 +-
 drivers/cpufreq/sparc-us2e-cpufreq.c | 12 ++++++------
 drivers/cpufreq/sparc-us3-cpufreq.c  |  8 ++++----
 drivers/cpufreq/spear-cpufreq.c      |  4 ++--
 drivers/cpufreq/speedstep-centrino.c |  8 ++++----
 drivers/mfd/db8500-prcmu.c           | 10 +++++-----
 drivers/sh/clk/core.c                |  4 ++--
 25 files changed, 95 insertions(+), 95 deletions(-)

(limited to 'drivers')

diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index f0077cb8e249..c8ec186303db 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -648,14 +648,14 @@ int opp_init_cpufreq_table(struct device *dev,
 
 	list_for_each_entry(opp, &dev_opp->opp_list, node) {
 		if (opp->available) {
-			freq_table[i].index = i;
+			freq_table[i].driver_data = i;
 			freq_table[i].frequency = opp->rate / 1000;
 			i++;
 		}
 	}
 	mutex_unlock(&dev_opp_list_lock);
 
-	freq_table[i].index = i;
+	freq_table[i].driver_data = i;
 	freq_table[i].frequency = CPUFREQ_TABLE_END;
 
 	*table = &freq_table[0];
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 8c02622b35a4..0d25677fb37d 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -232,7 +232,7 @@ 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].index].status)
+		if (msr == perf->states[data->freq_table[i].driver_data].status)
 			return data->freq_table[i].frequency;
 	}
 	return data->freq_table[0].frequency;
@@ -442,7 +442,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 		goto out;
 	}
 
-	next_perf_state = data->freq_table[next_state].index;
+	next_perf_state = data->freq_table[next_state].driver_data;
 	if (perf->state == next_perf_state) {
 		if (unlikely(data->resume)) {
 			pr_debug("Called after resume, resetting to P%d\n",
@@ -811,7 +811,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		    data->freq_table[valid_states-1].frequency / 1000)
 			continue;
 
-		data->freq_table[valid_states].index = i;
+		data->freq_table[valid_states].driver_data = i;
 		data->freq_table[valid_states].frequency =
 		    perf->states[i].core_frequency * 1000;
 		valid_states++;
diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 995511e80bef..9cdbbd278a80 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -20,23 +20,23 @@
 
 
 /* this is the table of CCLK frequencies, in Hz */
-/* .index is the entry in the auxiliary dpm_state_table[] */
+/* .driver_data is the entry in the auxiliary dpm_state_table[] */
 static struct cpufreq_frequency_table bfin_freq_table[] = {
 	{
 		.frequency = CPUFREQ_TABLE_END,
-		.index = 0,
+		.driver_data = 0,
 	},
 	{
 		.frequency = CPUFREQ_TABLE_END,
-		.index = 1,
+		.driver_data = 1,
 	},
 	{
 		.frequency = CPUFREQ_TABLE_END,
-		.index = 2,
+		.driver_data = 2,
 	},
 	{
 		.frequency = CPUFREQ_TABLE_END,
-		.index = 0,
+		.driver_data = 0,
 	},
 };
 
diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index 37380fb92621..324aff20aeef 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -188,7 +188,7 @@ static int eps_target(struct cpufreq_policy *policy,
 	}
 
 	/* Make frequency transition */
-	dest_state = centaur->freq_table[newstate].index & 0xffff;
+	dest_state = centaur->freq_table[newstate].driver_data & 0xffff;
 	ret = eps_set_state(centaur, policy, dest_state);
 	if (ret)
 		printk(KERN_ERR "eps: Timeout!\n");
@@ -380,9 +380,9 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
 	f_table = &centaur->freq_table[0];
 	if (brand != EPS_BRAND_C7M) {
 		f_table[0].frequency = fsb * min_multiplier;
-		f_table[0].index = (min_multiplier << 8) | min_voltage;
+		f_table[0].driver_data = (min_multiplier << 8) | min_voltage;
 		f_table[1].frequency = fsb * max_multiplier;
-		f_table[1].index = (max_multiplier << 8) | max_voltage;
+		f_table[1].driver_data = (max_multiplier << 8) | max_voltage;
 		f_table[2].frequency = CPUFREQ_TABLE_END;
 	} else {
 		k = 0;
@@ -391,7 +391,7 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
 		for (i = min_multiplier; i <= max_multiplier; i++) {
 			voltage = (k * step) / 256 + min_voltage;
 			f_table[k].frequency = fsb * i;
-			f_table[k].index = (i << 8) | voltage;
+			f_table[k].driver_data = (i << 8) | voltage;
 			k++;
 		}
 		f_table[k].frequency = CPUFREQ_TABLE_END;
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index d7a79662e24c..f0d87412cc91 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -34,8 +34,8 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
 
 			continue;
 		}
-		pr_debug("table entry %u: %u kHz, %u index\n",
-					i, freq, table[i].index);
+		pr_debug("table entry %u: %u kHz, %u driver_data\n",
+					i, freq, table[i].driver_data);
 		if (freq < min_freq)
 			min_freq = freq;
 		if (freq > max_freq)
@@ -97,11 +97,11 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 				   unsigned int *index)
 {
 	struct cpufreq_frequency_table optimal = {
-		.index = ~0,
+		.driver_data = ~0,
 		.frequency = 0,
 	};
 	struct cpufreq_frequency_table suboptimal = {
-		.index = ~0,
+		.driver_data = ~0,
 		.frequency = 0,
 	};
 	unsigned int i;
@@ -129,12 +129,12 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 			if (freq <= target_freq) {
 				if (freq >= optimal.frequency) {
 					optimal.frequency = freq;
-					optimal.index = i;
+					optimal.driver_data = i;
 				}
 			} else {
 				if (freq <= suboptimal.frequency) {
 					suboptimal.frequency = freq;
-					suboptimal.index = i;
+					suboptimal.driver_data = i;
 				}
 			}
 			break;
@@ -142,26 +142,26 @@ int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 			if (freq >= target_freq) {
 				if (freq <= optimal.frequency) {
 					optimal.frequency = freq;
-					optimal.index = i;
+					optimal.driver_data = i;
 				}
 			} else {
 				if (freq >= suboptimal.frequency) {
 					suboptimal.frequency = freq;
-					suboptimal.index = i;
+					suboptimal.driver_data = i;
 				}
 			}
 			break;
 		}
 	}
-	if (optimal.index > i) {
-		if (suboptimal.index > i)
+	if (optimal.driver_data > i) {
+		if (suboptimal.driver_data > i)
 			return -EINVAL;
-		*index = suboptimal.index;
+		*index = suboptimal.driver_data;
 	} else
-		*index = optimal.index;
+		*index = optimal.driver_data;
 
 	pr_debug("target is %u (%u kHz, %u)\n", *index, table[*index].frequency,
-		table[*index].index);
+		table[*index].driver_data);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index c0075dbaa633..573c14ea802d 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -326,7 +326,7 @@ acpi_cpufreq_cpu_init (
 	/* table init */
 	for (i = 0; i <= data->acpi_data.state_count; i++)
 	{
-		data->freq_table[i].index = i;
+		data->freq_table[i].driver_data = i;
 		if (i < data->acpi_data.state_count) {
 			data->freq_table[i].frequency =
 			      data->acpi_data.states[i].core_frequency * 1000;
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index b2644af985ec..c233ea617366 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -59,7 +59,7 @@ static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy,
 		unsigned int index)
 {
 	struct cpufreq_freqs freqs;
-	unsigned int state = kirkwood_freq_table[index].index;
+	unsigned int state = kirkwood_freq_table[index].driver_data;
 	unsigned long reg;
 
 	freqs.old = kirkwood_cpufreq_get_cpu_frequency(0);
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index b448638e34de..b6a0a7a406b0 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -254,7 +254,7 @@ static void longhaul_setstate(struct cpufreq_policy *policy,
 	u32 bm_timeout = 1000;
 	unsigned int dir = 0;
 
-	mults_index = longhaul_table[table_index].index;
+	mults_index = longhaul_table[table_index].driver_data;
 	/* Safety precautions */
 	mult = mults[mults_index & 0x1f];
 	if (mult == -1)
@@ -487,7 +487,7 @@ static int __cpuinit longhaul_get_ranges(void)
 		if (ratio > maxmult || ratio < minmult)
 			continue;
 		longhaul_table[k].frequency = calc_speed(ratio);
-		longhaul_table[k].index	= j;
+		longhaul_table[k].driver_data	= j;
 		k++;
 	}
 	if (k <= 1) {
@@ -508,8 +508,8 @@ static int __cpuinit longhaul_get_ranges(void)
 		if (min_i != j) {
 			swap(longhaul_table[j].frequency,
 			     longhaul_table[min_i].frequency);
-			swap(longhaul_table[j].index,
-			     longhaul_table[min_i].index);
+			swap(longhaul_table[j].driver_data,
+			     longhaul_table[min_i].driver_data);
 		}
 	}
 
@@ -517,7 +517,7 @@ static int __cpuinit longhaul_get_ranges(void)
 
 	/* Find index we are running on */
 	for (j = 0; j < k; j++) {
-		if (mults[longhaul_table[j].index & 0x1f] == mult) {
+		if (mults[longhaul_table[j].driver_data & 0x1f] == mult) {
 			longhaul_index = j;
 			break;
 		}
@@ -613,7 +613,7 @@ static void __cpuinit longhaul_setup_voltagescaling(void)
 			pos = (speed - min_vid_speed) / kHz_step + minvid.pos;
 		else
 			pos = minvid.pos;
-		longhaul_table[j].index |= mV_vrm_table[pos] << 8;
+		longhaul_table[j].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);
@@ -656,12 +656,12 @@ static int longhaul_target(struct cpufreq_policy *policy,
 		 * this in hardware, C3 is old and we need to do this
 		 * in software. */
 		i = longhaul_index;
-		current_vid = (longhaul_table[longhaul_index].index >> 8);
+		current_vid = (longhaul_table[longhaul_index].driver_data >> 8);
 		current_vid &= 0x1f;
 		if (table_index > longhaul_index)
 			dir = 1;
 		while (i != table_index) {
-			vid = (longhaul_table[i].index >> 8) & 0x1f;
+			vid = (longhaul_table[i].driver_data >> 8) & 0x1f;
 			if (vid != current_vid) {
 				longhaul_setstate(policy, i);
 				current_vid = vid;
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index d53912768946..bb838b985077 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -72,7 +72,7 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
 
 	freq =
 	    ((cpu_clock_freq / 1000) *
-	     loongson2_clockmod_table[newstate].index) / 8;
+	     loongson2_clockmod_table[newstate].driver_data) / 8;
 	if (freq < policy->min || freq > policy->max)
 		return -EINVAL;
 
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 421ef37d0bb3..9ee78170ff86 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -118,7 +118,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
 		return -EINVAL;
 
 	freqs.old = cpufreq_p4_get(policy->cpu);
-	freqs.new = stock_freq * p4clockmod_table[newstate].index / 8;
+	freqs.new = stock_freq * p4clockmod_table[newstate].driver_data / 8;
 
 	if (freqs.new == freqs.old)
 		return 0;
@@ -131,7 +131,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
 	 * Developer's Manual, Volume 3
 	 */
 	for_each_cpu(i, policy->cpus)
-		cpufreq_p4_setdc(i, p4clockmod_table[newstate].index);
+		cpufreq_p4_setdc(i, p4clockmod_table[newstate].driver_data);
 
 	/* notifiers */
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index ea0222a45b7b..ea8e10382ec5 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -58,7 +58,7 @@ static int powernow_k6_get_cpu_multiplier(void)
 	msrval = POWERNOW_IOPORT + 0x0;
 	wrmsr(MSR_K6_EPMR, msrval, 0); /* disable it again */
 
-	return clock_ratio[(invalue >> 5)&7].index;
+	return clock_ratio[(invalue >> 5)&7].driver_data;
 }
 
 
@@ -75,13 +75,13 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy,
 	unsigned long msrval;
 	struct cpufreq_freqs freqs;
 
-	if (clock_ratio[best_i].index > max_multiplier) {
+	if (clock_ratio[best_i].driver_data > max_multiplier) {
 		printk(KERN_ERR PFX "invalid target frequency\n");
 		return;
 	}
 
 	freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
-	freqs.new = busfreq * clock_ratio[best_i].index;
+	freqs.new = busfreq * clock_ratio[best_i].driver_data;
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
@@ -156,7 +156,7 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 
 	/* table init */
 	for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
-		f = clock_ratio[i].index;
+		f = clock_ratio[i].driver_data;
 		if (f > max_multiplier)
 			clock_ratio[i].frequency = CPUFREQ_ENTRY_INVALID;
 		else
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 53888dacbe58..b9f80b713fda 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -186,7 +186,7 @@ static int get_ranges(unsigned char *pst)
 		fid = *pst++;
 
 		powernow_table[j].frequency = (fsb * fid_codes[fid]) / 10;
-		powernow_table[j].index = fid; /* lower 8 bits */
+		powernow_table[j].driver_data = fid; /* lower 8 bits */
 
 		speed = powernow_table[j].frequency;
 
@@ -203,7 +203,7 @@ static int get_ranges(unsigned char *pst)
 			maximum_speed = speed;
 
 		vid = *pst++;
-		powernow_table[j].index |= (vid << 8); /* upper 8 bits */
+		powernow_table[j].driver_data |= (vid << 8); /* upper 8 bits */
 
 		pr_debug("   FID: 0x%x (%d.%dx [%dMHz])  "
 			 "VID: 0x%x (%d.%03dV)\n", fid, fid_codes[fid] / 10,
@@ -212,7 +212,7 @@ static int get_ranges(unsigned char *pst)
 			 mobile_vid_table[vid]%1000);
 	}
 	powernow_table[number_scales].frequency = CPUFREQ_TABLE_END;
-	powernow_table[number_scales].index = 0;
+	powernow_table[number_scales].driver_data = 0;
 
 	return 0;
 }
@@ -260,8 +260,8 @@ static void change_speed(struct cpufreq_policy *policy, unsigned int index)
 	 * vid are the upper 8 bits.
 	 */
 
-	fid = powernow_table[index].index & 0xFF;
-	vid = (powernow_table[index].index & 0xFF00) >> 8;
+	fid = powernow_table[index].driver_data & 0xFF;
+	vid = (powernow_table[index].driver_data & 0xFF00) >> 8;
 
 	rdmsrl(MSR_K7_FID_VID_STATUS, fidvidstatus.val);
 	cfid = fidvidstatus.bits.CFID;
@@ -373,8 +373,8 @@ static int powernow_acpi_init(void)
 		fid = pc.bits.fid;
 
 		powernow_table[i].frequency = fsb * fid_codes[fid] / 10;
-		powernow_table[i].index = fid; /* lower 8 bits */
-		powernow_table[i].index |= (vid << 8); /* upper 8 bits */
+		powernow_table[i].driver_data = fid; /* lower 8 bits */
+		powernow_table[i].driver_data |= (vid << 8); /* upper 8 bits */
 
 		speed = powernow_table[i].frequency;
 		speed_mhz = speed / 1000;
@@ -417,7 +417,7 @@ static int powernow_acpi_init(void)
 	}
 
 	powernow_table[i].frequency = CPUFREQ_TABLE_END;
-	powernow_table[i].index = 0;
+	powernow_table[i].driver_data = 0;
 
 	/* notify BIOS that we exist */
 	acpi_processor_notify_smm(THIS_MODULE);
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index b828efe4b2f8..51343a128703 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -584,9 +584,9 @@ static void print_basics(struct powernow_k8_data *data)
 				CPUFREQ_ENTRY_INVALID) {
 				printk(KERN_INFO PFX
 					"fid 0x%x (%d MHz), vid 0x%x\n",
-					data->powernow_table[j].index & 0xff,
+					data->powernow_table[j].driver_data & 0xff,
 					data->powernow_table[j].frequency/1000,
-					data->powernow_table[j].index >> 8);
+					data->powernow_table[j].driver_data >> 8);
 		}
 	}
 	if (data->batps)
@@ -632,13 +632,13 @@ static int fill_powernow_table(struct powernow_k8_data *data,
 
 	for (j = 0; j < data->numps; j++) {
 		int freq;
-		powernow_table[j].index = pst[j].fid; /* lower 8 bits */
-		powernow_table[j].index |= (pst[j].vid << 8); /* upper 8 bits */
+		powernow_table[j].driver_data = pst[j].fid; /* lower 8 bits */
+		powernow_table[j].driver_data |= (pst[j].vid << 8); /* upper 8 bits */
 		freq = find_khz_freq_from_fid(pst[j].fid);
 		powernow_table[j].frequency = freq;
 	}
 	powernow_table[data->numps].frequency = CPUFREQ_TABLE_END;
-	powernow_table[data->numps].index = 0;
+	powernow_table[data->numps].driver_data = 0;
 
 	if (query_current_values_with_pending_wait(data)) {
 		kfree(powernow_table);
@@ -810,7 +810,7 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data)
 
 	powernow_table[data->acpi_data.state_count].frequency =
 		CPUFREQ_TABLE_END;
-	powernow_table[data->acpi_data.state_count].index = 0;
+	powernow_table[data->acpi_data.state_count].driver_data = 0;
 	data->powernow_table = powernow_table;
 
 	if (cpumask_first(cpu_core_mask(data->cpu)) == data->cpu)
@@ -865,7 +865,7 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data,
 		pr_debug("   %d : fid 0x%x, vid 0x%x\n", i, fid, vid);
 
 		index = fid | (vid<<8);
-		powernow_table[i].index = index;
+		powernow_table[i].driver_data = index;
 
 		freq = find_khz_freq_from_fid(fid);
 		powernow_table[i].frequency = freq;
@@ -941,8 +941,8 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data,
 	 * the cpufreq frequency table in find_psb_table, vid
 	 * are the upper 8 bits.
 	 */
-	fid = data->powernow_table[index].index & 0xFF;
-	vid = (data->powernow_table[index].index & 0xFF00) >> 8;
+	fid = data->powernow_table[index].driver_data & 0xFF;
+	vid = (data->powernow_table[index].driver_data & 0xFF00) >> 8;
 
 	pr_debug("table matched fid 0x%x, giving vid 0x%x\n", fid, vid);
 
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index e577a1dbbfcd..5936f8d6f2cc 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -106,7 +106,7 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 	/* initialize frequency table */
 	for (i=0; cbe_freqs[i].frequency!=CPUFREQ_TABLE_END; i++) {
-		cbe_freqs[i].frequency = max_freq / cbe_freqs[i].index;
+		cbe_freqs[i].frequency = max_freq / cbe_freqs[i].driver_data;
 		pr_debug("%d: %d\n", i, cbe_freqs[i].frequency);
 	}
 
@@ -165,7 +165,7 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy,
 		 "1/%d of max frequency\n",
 		 policy->cpu,
 		 cbe_freqs[cbe_pmode_new].frequency,
-		 cbe_freqs[cbe_pmode_new].index);
+		 cbe_freqs[cbe_pmode_new].driver_data);
 
 	rc = set_pmode(policy->cpu, cbe_pmode_new);
 
diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index 9e5bc8e388a0..fb3981ac829f 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -420,7 +420,7 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 	/* Generate pxa25x the run cpufreq_frequency_table struct */
 	for (i = 0; i < NUM_PXA25x_RUN_FREQS; i++) {
 		pxa255_run_freq_table[i].frequency = pxa255_run_freqs[i].khz;
-		pxa255_run_freq_table[i].index = i;
+		pxa255_run_freq_table[i].driver_data = i;
 	}
 	pxa255_run_freq_table[i].frequency = CPUFREQ_TABLE_END;
 
@@ -428,7 +428,7 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 	for (i = 0; i < NUM_PXA25x_TURBO_FREQS; i++) {
 		pxa255_turbo_freq_table[i].frequency =
 			pxa255_turbo_freqs[i].khz;
-		pxa255_turbo_freq_table[i].index = i;
+		pxa255_turbo_freq_table[i].driver_data = i;
 	}
 	pxa255_turbo_freq_table[i].frequency = CPUFREQ_TABLE_END;
 
@@ -440,9 +440,9 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 		if (freq > pxa27x_maxfreq)
 			break;
 		pxa27x_freq_table[i].frequency = freq;
-		pxa27x_freq_table[i].index = i;
+		pxa27x_freq_table[i].driver_data = i;
 	}
-	pxa27x_freq_table[i].index = i;
+	pxa27x_freq_table[i].driver_data = i;
 	pxa27x_freq_table[i].frequency = CPUFREQ_TABLE_END;
 
 	/*
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index 15d60f857ad5..9c92ef032a9e 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -98,10 +98,10 @@ static int setup_freqs_table(struct cpufreq_policy *policy,
 		return -ENOMEM;
 
 	for (i = 0; i < num; i++) {
-		table[i].index = i;
+		table[i].driver_data = i;
 		table[i].frequency = freqs[i].cpufreq_mhz * 1000;
 	}
-	table[num].index = i;
+	table[num].driver_data = i;
 	table[num].frequency = CPUFREQ_TABLE_END;
 
 	pxa3xx_freqs = freqs;
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 4f1881eee3f1..69f2e55828dc 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -244,7 +244,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
 	if (ret != 0)
 		goto out;
 
-	idx = s3c_freq->freq_table[i].index;
+	idx = s3c_freq->freq_table[i].driver_data;
 
 	if (idx == SOURCE_HCLK)
 		to_dvs = 1;
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 27cacb524796..306d395de990 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -87,7 +87,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
 	freqs.old = clk_get_rate(armclk) / 1000;
 	freqs.new = s3c64xx_freq_table[i].frequency;
 	freqs.flags = 0;
-	dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[i].index];
+	dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[i].driver_data];
 
 	if (freqs.old == freqs.new)
 		return 0;
diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index f740b134d27b..77a210975fc4 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -71,7 +71,7 @@ static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy,
 	local_irq_disable();
 
 	clockspeed_reg = *cpuctl & ~0x03;
-	*cpuctl = clockspeed_reg | sc520_freq_table[state].index;
+	*cpuctl = clockspeed_reg | sc520_freq_table[state].driver_data;
 
 	local_irq_enable();
 
diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 306ae462bba6..93061a408773 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -308,17 +308,17 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
 	struct cpufreq_frequency_table *table =
 		&us2e_freq_table[cpu].table[0];
 
-	table[0].index = 0;
+	table[0].driver_data = 0;
 	table[0].frequency = clock_tick / 1;
-	table[1].index = 1;
+	table[1].driver_data = 1;
 	table[1].frequency = clock_tick / 2;
-	table[2].index = 2;
+	table[2].driver_data = 2;
 	table[2].frequency = clock_tick / 4;
-	table[2].index = 3;
+	table[2].driver_data = 3;
 	table[2].frequency = clock_tick / 6;
-	table[2].index = 4;
+	table[2].driver_data = 4;
 	table[2].frequency = clock_tick / 8;
-	table[2].index = 5;
+	table[2].driver_data = 5;
 	table[3].frequency = CPUFREQ_TABLE_END;
 
 	policy->cpuinfo.transition_latency = 0;
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index c71ee142347a..880ee293d61e 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -169,13 +169,13 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 	struct cpufreq_frequency_table *table =
 		&us3_freq_table[cpu].table[0];
 
-	table[0].index = 0;
+	table[0].driver_data = 0;
 	table[0].frequency = clock_tick / 1;
-	table[1].index = 1;
+	table[1].driver_data = 1;
 	table[1].frequency = clock_tick / 2;
-	table[2].index = 2;
+	table[2].driver_data = 2;
 	table[2].frequency = clock_tick / 32;
-	table[3].index = 0;
+	table[3].driver_data = 0;
 	table[3].frequency = CPUFREQ_TABLE_END;
 
 	policy->cpuinfo.transition_latency = 0;
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 156829f4576d..c3efa7f2a908 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -250,11 +250,11 @@ static int spear_cpufreq_driver_init(void)
 	}
 
 	for (i = 0; i < cnt; i++) {
-		freq_tbl[i].index = i;
+		freq_tbl[i].driver_data = i;
 		freq_tbl[i].frequency = be32_to_cpup(val++);
 	}
 
-	freq_tbl[i].index = i;
+	freq_tbl[i].driver_data = i;
 	freq_tbl[i].frequency = CPUFREQ_TABLE_END;
 
 	spear_cpufreq.freq_tbl = freq_tbl;
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 618e6f417b1c..0915e712fbdc 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -79,11 +79,11 @@ static struct cpufreq_driver centrino_driver;
 
 /* Computes the correct form for IA32_PERF_CTL MSR for a particular
    frequency/voltage operating point; frequency in MHz, volts in mV.
-   This is stored as "index" in the structure. */
+   This is stored as "driver_data" in the structure. */
 #define OP(mhz, mv)							\
 	{								\
 		.frequency = (mhz) * 1000,				\
-		.index = (((mhz)/100) << 8) | ((mv - 700) / 16)		\
+		.driver_data = (((mhz)/100) << 8) | ((mv - 700) / 16)		\
 	}
 
 /*
@@ -307,7 +307,7 @@ static unsigned extract_clock(unsigned msr, unsigned int cpu, int failsafe)
 		per_cpu(centrino_model, cpu)->op_points[i].frequency
 							!= CPUFREQ_TABLE_END;
 	     i++) {
-		if (msr == per_cpu(centrino_model, cpu)->op_points[i].index)
+		if (msr == per_cpu(centrino_model, cpu)->op_points[i].driver_data)
 			return per_cpu(centrino_model, cpu)->
 							op_points[i].frequency;
 	}
@@ -501,7 +501,7 @@ static int centrino_target (struct cpufreq_policy *policy,
 			break;
 		}
 
-		msr = per_cpu(centrino_model, cpu)->op_points[newstate].index;
+		msr = per_cpu(centrino_model, cpu)->op_points[newstate].driver_data;
 
 		if (first_cpu) {
 			rdmsr_on_cpu(good_cpu, MSR_IA32_PERF_CTL, &oldmsr, &h);
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 66f80973596b..ed79d7b78e7d 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -1724,9 +1724,9 @@ static long round_clock_rate(u8 clock, unsigned long rate)
 
 /* CPU FREQ table, may be changed due to if MAX_OPP is supported. */
 static struct cpufreq_frequency_table db8500_cpufreq_table[] = {
-	{ .frequency = 200000, .index = ARM_EXTCLK,},
-	{ .frequency = 400000, .index = ARM_50_OPP,},
-	{ .frequency = 800000, .index = ARM_100_OPP,},
+	{ .frequency = 200000, .driver_data = ARM_EXTCLK,},
+	{ .frequency = 400000, .driver_data = ARM_50_OPP,},
+	{ .frequency = 800000, .driver_data = ARM_100_OPP,},
 	{ .frequency = CPUFREQ_TABLE_END,}, /* To be used for MAX_OPP. */
 	{ .frequency = CPUFREQ_TABLE_END,},
 };
@@ -1901,7 +1901,7 @@ static int set_armss_rate(unsigned long rate)
 		return -EINVAL;
 
 	/* Set the new arm opp. */
-	return db8500_prcmu_set_arm_opp(db8500_cpufreq_table[i].index);
+	return db8500_prcmu_set_arm_opp(db8500_cpufreq_table[i].driver_data);
 }
 
 static int set_plldsi_rate(unsigned long rate)
@@ -3105,7 +3105,7 @@ static void db8500_prcmu_update_cpufreq(void)
 {
 	if (prcmu_has_arm_maxopp()) {
 		db8500_cpufreq_table[3].frequency = 1000000;
-		db8500_cpufreq_table[3].index = ARM_MAX_OPP;
+		db8500_cpufreq_table[3].driver_data = ARM_MAX_OPP;
 	}
 }
 
diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c
index 7715de2629c1..74727851820d 100644
--- a/drivers/sh/clk/core.c
+++ b/drivers/sh/clk/core.c
@@ -63,12 +63,12 @@ void clk_rate_table_build(struct clk *clk,
 		else
 			freq = clk->parent->rate * mult / div;
 
-		freq_table[i].index = i;
+		freq_table[i].driver_data = i;
 		freq_table[i].frequency = freq;
 	}
 
 	/* Termination entry */
-	freq_table[i].index = i;
+	freq_table[i].driver_data = i;
 	freq_table[i].frequency = CPUFREQ_TABLE_END;
 }
 
-- 
cgit v1.2.3


From a262e94cdcb961762e5d91e7fcb857bba7d420a0 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Fri, 31 May 2013 06:15:08 +0000
Subject: cpufreq: remove unnecessary cpufreq_cpu_{get|put}() calls

struct cpufreq_policy is already passed as argument to some routines
like: __cpufreq_driver_getavg() and so we don't really need to do
cpufreq_cpu_get() before and cpufreq_cpu_put() in them to get a
policy structure.

Remove them.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

(limited to 'drivers')

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index ce9273a7b4e3..f8c28607ccd6 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1572,10 +1572,6 @@ int cpufreq_driver_target(struct cpufreq_policy *policy,
 {
 	int ret = -EINVAL;
 
-	policy = cpufreq_cpu_get(policy->cpu);
-	if (!policy)
-		goto no_policy;
-
 	if (unlikely(lock_policy_rwsem_write(policy->cpu)))
 		goto fail;
 
@@ -1584,30 +1580,19 @@ int cpufreq_driver_target(struct cpufreq_policy *policy,
 	unlock_policy_rwsem_write(policy->cpu);
 
 fail:
-	cpufreq_cpu_put(policy);
-no_policy:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(cpufreq_driver_target);
 
 int __cpufreq_driver_getavg(struct cpufreq_policy *policy, unsigned int cpu)
 {
-	int ret = 0;
-
 	if (cpufreq_disabled())
-		return ret;
+		return 0;
 
 	if (!cpufreq_driver->getavg)
 		return 0;
 
-	policy = cpufreq_cpu_get(policy->cpu);
-	if (!policy)
-		return -EINVAL;
-
-	ret = cpufreq_driver->getavg(policy, cpu);
-
-	cpufreq_cpu_put(policy);
-	return ret;
+	return cpufreq_driver->getavg(policy, cpu);
 }
 EXPORT_SYMBOL_GPL(__cpufreq_driver_getavg);
 
-- 
cgit v1.2.3


From defa4c738aa90e29e91eff43b0c1b3198367ce9c Mon Sep 17 00:00:00 2001
From: Tang Yuantian <yuantian.tang@freescale.com>
Date: Wed, 5 Jun 2013 09:30:48 +0000
Subject: cpufreq: powerpc: Add cpufreq driver for Freescale e500mc SoCs

Add cpufreq driver for Freescale e500mc, e5500 and e6500 SoCs
which are capable of changing the CPU frequency dynamically

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/Kconfig.powerpc       |  10 +
 drivers/cpufreq/Makefile              |   1 +
 drivers/cpufreq/ppc-corenet-cpufreq.c | 380 ++++++++++++++++++++++++++++++++++
 3 files changed, 391 insertions(+)
 create mode 100644 drivers/cpufreq/ppc-corenet-cpufreq.c

(limited to 'drivers')

diff --git a/drivers/cpufreq/Kconfig.powerpc b/drivers/cpufreq/Kconfig.powerpc
index 9c926ca0d718..88f629e5a393 100644
--- a/drivers/cpufreq/Kconfig.powerpc
+++ b/drivers/cpufreq/Kconfig.powerpc
@@ -23,3 +23,13 @@ config CPU_FREQ_MAPLE
 	help
 	  This adds support for frequency switching on Maple 970FX
 	  Evaluation Board and compatible boards (IBM JS2x blades).
+
+config PPC_CORENET_CPUFREQ
+	tristate "CPU frequency scaling driver for Freescale E500MC SoCs"
+	depends on PPC_E500MC && OF && COMMON_CLK
+	select CPU_FREQ_TABLE
+	select CLK_PPC_CORENET
+	help
+	  This adds the CPUFreq driver support for Freescale e500mc,
+	  e5500 and e6500 series SoCs which are capable of changing
+	  the CPU's frequency dynamically.
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 315b9231feb1..c956094ccc39 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -79,6 +79,7 @@ obj-$(CONFIG_CPU_FREQ_CBE)		+= ppc-cbe-cpufreq.o
 ppc-cbe-cpufreq-y			+= ppc_cbe_cpufreq_pervasive.o ppc_cbe_cpufreq.o
 obj-$(CONFIG_CPU_FREQ_CBE_PMI)		+= ppc_cbe_cpufreq_pmi.o
 obj-$(CONFIG_CPU_FREQ_MAPLE)		+= maple-cpufreq.o
+obj-$(CONFIG_PPC_CORENET_CPUFREQ)   += ppc-corenet-cpufreq.o
 
 ##################################################################################
 # Other platform drivers
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
new file mode 100644
index 000000000000..3cae4529f959
--- /dev/null
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -0,0 +1,380 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * CPU Frequency Scaling driver for Freescale PowerPC corenet SoCs.
+ *
+ * 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.
+ */
+
+#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
+
+#include <linux/clk.h>
+#include <linux/cpufreq.h>
+#include <linux/errno.h>
+#include <sysdev/fsl_soc.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/smp.h>
+
+/**
+ * struct cpu_data - per CPU data struct
+ * @clk: the clk of CPU
+ * @parent: the parent node of cpu clock
+ * @table: frequency table
+ */
+struct cpu_data {
+	struct clk *clk;
+	struct device_node *parent;
+	struct cpufreq_frequency_table *table;
+};
+
+/**
+ * struct soc_data - SoC specific data
+ * @freq_mask: mask the disallowed frequencies
+ * @flag: unique flags
+ */
+struct soc_data {
+	u32 freq_mask[4];
+	u32 flag;
+};
+
+#define FREQ_MASK	1
+/* see hardware specification for the allowed frqeuencies */
+static const struct soc_data sdata[] = {
+	{ /* used by p2041 and p3041 */
+		.freq_mask = {0x8, 0x8, 0x2, 0x2},
+		.flag = FREQ_MASK,
+	},
+	{ /* used by p5020 */
+		.freq_mask = {0x8, 0x2},
+		.flag = FREQ_MASK,
+	},
+	{ /* used by p4080, p5040 */
+		.freq_mask = {0},
+		.flag = 0,
+	},
+};
+
+/*
+ * the minimum allowed core frequency, in Hz
+ * for chassis v1.0, >= platform frequency
+ * for chassis v2.0, >= platform frequency / 2
+ */
+static u32 min_cpufreq;
+static const u32 *fmask;
+
+/* serialize frequency changes  */
+static DEFINE_MUTEX(cpufreq_lock);
+static DEFINE_PER_CPU(struct cpu_data *, cpu_data);
+
+/* cpumask in a cluster */
+static DEFINE_PER_CPU(cpumask_var_t, cpu_mask);
+
+#ifndef CONFIG_SMP
+static inline const struct cpumask *cpu_core_mask(int cpu)
+{
+	return cpumask_of(0);
+}
+#endif
+
+static unsigned int corenet_cpufreq_get_speed(unsigned int cpu)
+{
+	struct cpu_data *data = per_cpu(cpu_data, cpu);
+
+	return clk_get_rate(data->clk) / 1000;
+}
+
+/* reduce the duplicated frequencies in frequency table */
+static void freq_table_redup(struct cpufreq_frequency_table *freq_table,
+		int count)
+{
+	int i, j;
+
+	for (i = 1; i < count; i++) {
+		for (j = 0; j < i; j++) {
+			if (freq_table[j].frequency == CPUFREQ_ENTRY_INVALID ||
+					freq_table[j].frequency !=
+					freq_table[i].frequency)
+				continue;
+
+			freq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+			break;
+		}
+	}
+}
+
+/* sort the frequencies in frequency table in descenting order */
+static void freq_table_sort(struct cpufreq_frequency_table *freq_table,
+		int count)
+{
+	int i, j, ind;
+	unsigned int freq, max_freq;
+	struct cpufreq_frequency_table table;
+	for (i = 0; i < count - 1; i++) {
+		max_freq = freq_table[i].frequency;
+		ind = i;
+		for (j = i + 1; j < count; j++) {
+			freq = freq_table[j].frequency;
+			if (freq == CPUFREQ_ENTRY_INVALID ||
+					freq <= max_freq)
+				continue;
+			ind = j;
+			max_freq = freq;
+		}
+
+		if (ind != i) {
+			/* exchange the frequencies */
+			table.driver_data = freq_table[i].driver_data;
+			table.frequency = freq_table[i].frequency;
+			freq_table[i].driver_data = freq_table[ind].driver_data;
+			freq_table[i].frequency = freq_table[ind].frequency;
+			freq_table[ind].driver_data = table.driver_data;
+			freq_table[ind].frequency = table.frequency;
+		}
+	}
+}
+
+static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
+{
+	struct device_node *np;
+	int i, count, ret;
+	u32 freq, mask;
+	struct clk *clk;
+	struct cpufreq_frequency_table *table;
+	struct cpu_data *data;
+	unsigned int cpu = policy->cpu;
+
+	np = of_get_cpu_node(cpu, NULL);
+	if (!np)
+		return -ENODEV;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		pr_err("%s: no memory\n", __func__);
+		goto err_np;
+	}
+
+	data->clk = of_clk_get(np, 0);
+	if (IS_ERR(data->clk)) {
+		pr_err("%s: no clock information\n", __func__);
+		goto err_nomem2;
+	}
+
+	data->parent = of_parse_phandle(np, "clocks", 0);
+	if (!data->parent) {
+		pr_err("%s: could not get clock information\n", __func__);
+		goto err_nomem2;
+	}
+
+	count = of_property_count_strings(data->parent, "clock-names");
+	table = kcalloc(count + 1, sizeof(*table), GFP_KERNEL);
+	if (!table) {
+		pr_err("%s: no memory\n", __func__);
+		goto err_node;
+	}
+
+	if (fmask)
+		mask = fmask[get_hard_smp_processor_id(cpu)];
+	else
+		mask = 0x0;
+
+	for (i = 0; i < count; i++) {
+		clk = of_clk_get(data->parent, i);
+		freq = clk_get_rate(clk);
+		/*
+		 * the clock is valid if its frequency is not masked
+		 * and large than minimum allowed frequency.
+		 */
+		if (freq < min_cpufreq || (mask & (1 << i)))
+			table[i].frequency = CPUFREQ_ENTRY_INVALID;
+		else
+			table[i].frequency = freq / 1000;
+		table[i].driver_data = i;
+	}
+	freq_table_redup(table, count);
+	freq_table_sort(table, count);
+	table[i].frequency = CPUFREQ_TABLE_END;
+
+	/* set the min and max frequency properly */
+	ret = cpufreq_frequency_table_cpuinfo(policy, table);
+	if (ret) {
+		pr_err("invalid frequency table: %d\n", ret);
+		goto err_nomem1;
+	}
+
+	data->table = table;
+	per_cpu(cpu_data, cpu) = data;
+
+	/* update ->cpus if we have cluster, no harm if not */
+	cpumask_copy(policy->cpus, per_cpu(cpu_mask, cpu));
+	for_each_cpu(i, per_cpu(cpu_mask, cpu))
+		per_cpu(cpu_data, i) = data;
+
+	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+	policy->cur = corenet_cpufreq_get_speed(policy->cpu);
+
+	cpufreq_frequency_table_get_attr(table, cpu);
+	of_node_put(np);
+
+	return 0;
+
+err_nomem1:
+	kfree(table);
+err_node:
+	of_node_put(data->parent);
+err_nomem2:
+	per_cpu(cpu_data, cpu) = NULL;
+	kfree(data);
+err_np:
+	of_node_put(np);
+
+	return -ENODEV;
+}
+
+static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy)
+{
+	struct cpu_data *data = per_cpu(cpu_data, policy->cpu);
+	unsigned int cpu;
+
+	cpufreq_frequency_table_put_attr(policy->cpu);
+	of_node_put(data->parent);
+	kfree(data->table);
+	kfree(data);
+
+	for_each_cpu(cpu, per_cpu(cpu_mask, policy->cpu))
+		per_cpu(cpu_data, cpu) = NULL;
+
+	return 0;
+}
+
+static int corenet_cpufreq_verify(struct cpufreq_policy *policy)
+{
+	struct cpufreq_frequency_table *table =
+		per_cpu(cpu_data, policy->cpu)->table;
+
+	return cpufreq_frequency_table_verify(policy, table);
+}
+
+static int corenet_cpufreq_target(struct cpufreq_policy *policy,
+		unsigned int target_freq, unsigned int relation)
+{
+	struct cpufreq_freqs freqs;
+	unsigned int new;
+	struct clk *parent;
+	int ret;
+	struct cpu_data *data = per_cpu(cpu_data, policy->cpu);
+
+	cpufreq_frequency_table_target(policy, data->table,
+			target_freq, relation, &new);
+
+	if (policy->cur == data->table[new].frequency)
+		return 0;
+
+	freqs.old = policy->cur;
+	freqs.new = data->table[new].frequency;
+
+	mutex_lock(&cpufreq_lock);
+	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+
+	parent = of_clk_get(data->parent, data->table[new].driver_data);
+	ret = clk_set_parent(data->clk, parent);
+	if (ret)
+		freqs.new = freqs.old;
+
+	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+	mutex_unlock(&cpufreq_lock);
+
+	return ret;
+}
+
+static struct freq_attr *corenet_cpufreq_attr[] = {
+	&cpufreq_freq_attr_scaling_available_freqs,
+	NULL,
+};
+
+static struct cpufreq_driver ppc_corenet_cpufreq_driver = {
+	.name		= "ppc_cpufreq",
+	.owner		= THIS_MODULE,
+	.flags		= CPUFREQ_CONST_LOOPS,
+	.init		= corenet_cpufreq_cpu_init,
+	.exit		= __exit_p(corenet_cpufreq_cpu_exit),
+	.verify		= corenet_cpufreq_verify,
+	.target		= corenet_cpufreq_target,
+	.get		= corenet_cpufreq_get_speed,
+	.attr		= corenet_cpufreq_attr,
+};
+
+static const struct of_device_id node_matches[] __initdata = {
+	{ .compatible = "fsl,p2041-clockgen", .data = &sdata[0], },
+	{ .compatible = "fsl,p3041-clockgen", .data = &sdata[0], },
+	{ .compatible = "fsl,p5020-clockgen", .data = &sdata[1], },
+	{ .compatible = "fsl,p4080-clockgen", .data = &sdata[2], },
+	{ .compatible = "fsl,p5040-clockgen", .data = &sdata[2], },
+	{ .compatible = "fsl,qoriq-clockgen-2.0", },
+	{}
+};
+
+static int __init ppc_corenet_cpufreq_init(void)
+{
+	int ret;
+	struct device_node  *np;
+	const struct of_device_id *match;
+	const struct soc_data *data;
+	unsigned int cpu;
+
+	np = of_find_matching_node(NULL, node_matches);
+	if (!np)
+		return -ENODEV;
+
+	for_each_possible_cpu(cpu) {
+		if (!alloc_cpumask_var(&per_cpu(cpu_mask, cpu), GFP_KERNEL))
+			goto err_mask;
+		cpumask_copy(per_cpu(cpu_mask, cpu), cpu_core_mask(cpu));
+	}
+
+	match = of_match_node(node_matches, np);
+	data = match->data;
+	if (data) {
+		if (data->flag)
+			fmask = data->freq_mask;
+		min_cpufreq = fsl_get_sys_freq();
+	} else {
+		min_cpufreq = fsl_get_sys_freq() / 2;
+	}
+
+	of_node_put(np);
+
+	ret = cpufreq_register_driver(&ppc_corenet_cpufreq_driver);
+	if (!ret)
+		pr_info("Freescale PowerPC corenet CPU frequency scaling driver\n");
+
+	return ret;
+
+err_mask:
+	for_each_possible_cpu(cpu)
+		free_cpumask_var(per_cpu(cpu_mask, cpu));
+
+	return -ENOMEM;
+}
+module_init(ppc_corenet_cpufreq_init);
+
+static void __exit ppc_corenet_cpufreq_exit(void)
+{
+	unsigned int cpu;
+
+	for_each_possible_cpu(cpu)
+		free_cpumask_var(per_cpu(cpu_mask, cpu));
+
+	cpufreq_unregister_driver(&ppc_corenet_cpufreq_driver);
+}
+module_exit(ppc_corenet_cpufreq_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Tang Yuantian <Yuantian.Tang@freescale.com>");
+MODULE_DESCRIPTION("cpufreq driver for Freescale e500mc series SoCs");
-- 
cgit v1.2.3


From 4b416745b9aa20a2b51509348d886ea8a5c99951 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Sat, 1 Jun 2013 00:22:44 +0200
Subject: cpufreq: SPEAr needs cpufreq table

Like a lot of the other cpufreq drivers, this one needs to
select CONFIG_CPU_FREQ_TABLE to avoid a build error like

drivers/built-in.o: In function `spear_cpufreq_exit':
spear-cpufreq.c:198: undefined reference to `cpufreq_frequency_table_put_attr'
drivers/built-in.o: In function `spear_cpufreq_verify':
spear-cpufreq.c:35: undefined reference to `cpufreq_frequency_table_verify'
drivers/built-in.o: In function `spear_cpufreq_init':
spear-cpufreq.c:181: undefined reference to `cpufreq_frequency_table_cpuinfo'
spear-cpufreq.c:187: undefined reference to `cpufreq_frequency_table_get_attr'
drivers/built-in.o: In function `spear_cpufreq_target':
spear-cpufreq.c:120: undefined reference to `cpufreq_frequency_table_target'
drivers/built-in.o:(.data+0x5e63c): undefined reference to `cpufreq_freq_attr_scaling_available_freqs'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: cpufreq@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/Kconfig.arm | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers')

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 6e57543fe0b9..d06fe1a54080 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -147,6 +147,7 @@ config ARM_SA1110_CPUFREQ
 config ARM_SPEAR_CPUFREQ
 	bool "SPEAr CPUFreq support"
 	depends on PLAT_SPEAR
+	select CPU_FREQ_TABLE
 	default y
 	help
 	  This adds the CPUFreq driver support for SPEAr SOCs.
-- 
cgit v1.2.3


From fe948f541abc1e176da4daf4dd181751f764ec75 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 3 Jun 2013 23:41:14 +0200
Subject: cpufreq: big.LITTLE needs cpufreq table

Like a lot of the other cpufreq drivers, this one needs to
select CONFIG_CPU_FREQ_TABLE to avoid a build error like

built-in.o: In function `bL_cpufreq_set_target':
cpufreq/arm_big_little.c:71: undefined reference to `cpufreq_frequency_table_target'
built-in.o: In function `bL_cpufreq_verify_policy':
cpufreq/arm_big_little.c:55: undefined reference to `cpufreq_frequency_table_verify'
built-in.o: In function `bL_cpufreq_init':
cpufreq/arm_big_little.c:170: undefined reference to `cpufreq_frequency_table_cpuinfo'
cpufreq/arm_big_little.c:178: undefined reference to `cpufreq_frequency_table_get_attr'
built-in.o:(.data+0x5a80c): undefined reference to `cpufreq_freq_attr_scaling_available_freqs'

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/Kconfig.arm | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers')

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index d06fe1a54080..1ed171db8fe6 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -5,6 +5,7 @@
 config ARM_BIG_LITTLE_CPUFREQ
 	tristate "Generic ARM big LITTLE CPUfreq driver"
 	depends on ARM_CPU_TOPOLOGY && PM_OPP && HAVE_CLK
+	select CPU_FREQ_TABLE
 	help
 	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
 
-- 
cgit v1.2.3


From ea61623fe9badd5a195b3a0878e6d89a2f97ac0e Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 4 Jun 2013 14:03:18 -0300
Subject: cpufreq: kirkwood: Select CPU_FREQ_TABLE option

We need to select CPU_FREQ_TABLE in order to build without
this kind of errors:

drivers/built-in.o: In function `kirkwood_cpufreq_cpu_exit':
/home/zeta/linux-devel/marvell-legacy/drivers/cpufreq/kirkwood-cpufreq.c:145:
undefined reference to `cpufreq_frequency_table_put_attr'

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/cpufreq/Kconfig.arm | 1 +
 1 file changed, 1 insertion(+)

(limited to 'drivers')

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 1ed171db8fe6..5c7c2e1645b4 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -87,6 +87,7 @@ config ARM_INTEGRATOR
 
 config ARM_KIRKWOOD_CPUFREQ
 	def_bool ARCH_KIRKWOOD && OF
+	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for Marvell Kirkwood
 	  SoCs.
-- 
cgit v1.2.3


From 7fb6a53db58c729ff470095371f431b6d66c527b Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 4 Apr 2013 18:24:25 +0530
Subject: cpufreq: powerpc: move cpufreq driver to drivers/cpufreq

Move cpufreq driver of powerpc platform to drivers/cpufreq.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/Kconfig.powerpc  |  26 ++
 drivers/cpufreq/Makefile         |   3 +
 drivers/cpufreq/pasemi-cpufreq.c | 331 +++++++++++++++++
 drivers/cpufreq/pmac32-cpufreq.c | 721 +++++++++++++++++++++++++++++++++++++
 drivers/cpufreq/pmac64-cpufreq.c | 746 +++++++++++++++++++++++++++++++++++++++
 5 files changed, 1827 insertions(+)
 create mode 100644 drivers/cpufreq/pasemi-cpufreq.c
 create mode 100644 drivers/cpufreq/pmac32-cpufreq.c
 create mode 100644 drivers/cpufreq/pmac64-cpufreq.c

(limited to 'drivers')

diff --git a/drivers/cpufreq/Kconfig.powerpc b/drivers/cpufreq/Kconfig.powerpc
index 88f629e5a393..c48f83c93a96 100644
--- a/drivers/cpufreq/Kconfig.powerpc
+++ b/drivers/cpufreq/Kconfig.powerpc
@@ -33,3 +33,29 @@ config PPC_CORENET_CPUFREQ
 	  This adds the CPUFreq driver support for Freescale e500mc,
 	  e5500 and e6500 series SoCs which are capable of changing
 	  the CPU's frequency dynamically.
+
+config CPU_FREQ_PMAC
+	bool "Support for Apple PowerBooks"
+	depends on ADB_PMU && PPC32
+	select CPU_FREQ_TABLE
+	help
+	  This adds support for frequency switching on Apple PowerBooks,
+	  this currently includes some models of iBook & Titanium
+	  PowerBook.
+
+config CPU_FREQ_PMAC64
+	bool "Support for some Apple G5s"
+	depends on PPC_PMAC && PPC64
+	select CPU_FREQ_TABLE
+	help
+	  This adds support for frequency switching on Apple iMac G5,
+	  and some of the more recent desktop G5 machines as well.
+
+config PPC_PASEMI_CPUFREQ
+	bool "Support for PA Semi PWRficient"
+	depends on PPC_PASEMI
+	select CPU_FREQ_TABLE
+	default y
+	help
+	  This adds the support for frequency switching on PA Semi
+	  PWRficient processors.
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index c956094ccc39..2de2af2ca3b1 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -80,6 +80,9 @@ ppc-cbe-cpufreq-y			+= ppc_cbe_cpufreq_pervasive.o ppc_cbe_cpufreq.o
 obj-$(CONFIG_CPU_FREQ_CBE_PMI)		+= ppc_cbe_cpufreq_pmi.o
 obj-$(CONFIG_CPU_FREQ_MAPLE)		+= maple-cpufreq.o
 obj-$(CONFIG_PPC_CORENET_CPUFREQ)   += ppc-corenet-cpufreq.o
+obj-$(CONFIG_CPU_FREQ_PMAC)		+= pmac32-cpufreq.o
+obj-$(CONFIG_CPU_FREQ_PMAC64)		+= pmac64-cpufreq.o
+obj-$(CONFIG_PPC_PASEMI_CPUFREQ)	+= pasemi-cpufreq.o
 
 ##################################################################################
 # Other platform drivers
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
new file mode 100644
index 000000000000..b704da404067
--- /dev/null
+++ b/driver