Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: (23 commits)
  [CPUFREQ] EXYNOS: Removed useless headers and codes
  [CPUFREQ] EXYNOS: Make EXYNOS common cpufreq driver
  [CPUFREQ] powernow-k8: Update copyright, maintainer and documentation information
  [CPUFREQ] powernow-k8: Fix indexing issue
  [CPUFREQ] powernow-k8: Avoid Pstate MSR accesses on systems supporting CPB
  [CPUFREQ] update lpj only if frequency has changed
  [CPUFREQ] cpufreq:userspace: fix cpu_cur_freq updation
  [CPUFREQ] Remove wall variable from cpufreq_gov_dbs_init()
  [CPUFREQ] EXYNOS4210: cpufreq code is changed for stable working
  [CPUFREQ] EXYNOS4210: Update frequency table for cpu divider
  [CPUFREQ] EXYNOS4210: Remove code about bus on cpufreq
  [CPUFREQ] s3c64xx: Use pr_fmt() for consistent log messages
  cpufreq: OMAP: fixup for omap_device changes, include <linux/module.h>
  cpufreq: OMAP: fix freq_table leak
  cpufreq: OMAP: put clk if cpu_init failed
  cpufreq: OMAP: only supports OPP library
  cpufreq: OMAP: dont support !freq_table
  cpufreq: OMAP: deny initialization if no mpudev
  cpufreq: OMAP: move clk name decision to init
  cpufreq: OMAP: notify even with bad boot frequency
  ...

10 files changed, 765 insertions, 555 deletions

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 72a0044c1ba..e0664fed018 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -21,12 +21,19 @@ config ARM_S5PV210_CPUFREQ
 
           If in doubt, say N.
 
+config ARM_EXYNOS_CPUFREQ
+        bool "SAMSUNG EXYNOS SoCs"
+        depends on ARCH_EXYNOS
+        select ARM_EXYNOS4210_CPUFREQ if CPU_EXYNOS4210
+        default y
+        help
+          This adds the CPUFreq driver common part for Samsung
+          EXYNOS SoCs.
+
+          If in doubt, say N.
+
 config ARM_EXYNOS4210_CPUFREQ
         bool "Samsung EXYNOS4210"
-        depends on CPU_EXYNOS4210
-        default y
         help
           This adds the CPUFreq driver for Samsung EXYNOS4210
           SoC (S5PV310 or S5PC210).
-
-          If in doubt, say N.
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index a48bc02cd76..ac000fa76bb 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -42,7 +42,9 @@ obj-$(CONFIG_X86_CPUFREQ_NFORCE2)	+= cpufreq-nforce2.o
 obj-$(CONFIG_UX500_SOC_DB8500)          += db8500-cpufreq.o
 obj-$(CONFIG_ARM_S3C64XX_CPUFREQ)       += s3c64xx-cpufreq.o
 obj-$(CONFIG_ARM_S5PV210_CPUFREQ)       += s5pv210-cpufreq.o
+obj-$(CONFIG_ARM_EXYNOS_CPUFREQ)        += exynos-cpufreq.o
 obj-$(CONFIG_ARM_EXYNOS4210_CPUFREQ)    += exynos4210-cpufreq.o
+obj-$(CONFIG_ARCH_OMAP2PLUS)            += omap-cpufreq.o
 
 ##################################################################################
 # PowerPC platform drivers
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 8c2df3499da..622013fb789 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -204,8 +204,7 @@ static void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
                 pr_debug("saving %lu as reference value for loops_per_jiffy; "
                         "freq is %u kHz\n", l_p_j_ref, l_p_j_ref_freq);
         }
-        if ((val == CPUFREQ_PRECHANGE  && ci->old < ci->new) ||
-            (val == CPUFREQ_POSTCHANGE && ci->old > ci->new) ||
+        if ((val == CPUFREQ_POSTCHANGE  && ci->old != ci->new) ||
             (val == CPUFREQ_RESUMECHANGE || val == CPUFREQ_SUSPENDCHANGE)) {
                 loops_per_jiffy = cpufreq_scale(l_p_j_ref, l_p_j_ref_freq,
                                                                 ci->new);
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 3d679eee70a..c3e0652520a 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -713,11 +713,10 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 
 static int __init cpufreq_gov_dbs_init(void)
 {
-        cputime64_t wall;
         u64 idle_time;
         int cpu = get_cpu();
 
-        idle_time = get_cpu_idle_time_us(cpu, &wall);
+        idle_time = get_cpu_idle_time_us(cpu, NULL);
         put_cpu();
         if (idle_time != -1ULL) {
                 /* Idle micro accounting is supported. Use finer thresholds */
diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c
index f231015904c..bedac1aa9be 100644
--- a/drivers/cpufreq/cpufreq_userspace.c
+++ b/drivers/cpufreq/cpufreq_userspace.c
@@ -47,9 +47,11 @@ userspace_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
         if (!per_cpu(cpu_is_managed, freq->cpu))
                 return 0;
 
-        pr_debug("saving cpu_cur_freq of cpu %u to be %u kHz\n",
-                        freq->cpu, freq->new);
-        per_cpu(cpu_cur_freq, freq->cpu) = freq->new;
+        if (val == CPUFREQ_POSTCHANGE) {
+                pr_debug("saving cpu_cur_freq of cpu %u to be %u kHz\n",
+                                freq->cpu, freq->new);
+                per_cpu(cpu_cur_freq, freq->cpu) = freq->new;
+        }
 
         return 0;
 }
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
new file mode 100644
index 00000000000..5467879ea07
--- /dev/null
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -0,0 +1,290 @@
+/*
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com
+ *
+ * EXYNOS - CPU frequency scaling support for EXYNOS series
+ *
+ * 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/kernel.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/regulator/consumer.h>
+#include <linux/cpufreq.h>
+#include <linux/suspend.h>
+
+#include <mach/cpufreq.h>
+
+#include <plat/cpu.h>
+
+static struct exynos_dvfs_info *exynos_info;
+
+static struct regulator *arm_regulator;
+static struct cpufreq_freqs freqs;
+
+static unsigned int locking_frequency;
+static bool frequency_locked;
+static DEFINE_MUTEX(cpufreq_lock);
+
+int exynos_verify_speed(struct cpufreq_policy *policy)
+{
+        return cpufreq_frequency_table_verify(policy,
+                                              exynos_info->freq_table);
+}
+
+unsigned int exynos_getspeed(unsigned int cpu)
+{
+        return clk_get_rate(exynos_info->cpu_clk) / 1000;
+}
+
+static int exynos_target(struct cpufreq_policy *policy,
+                          unsigned int target_freq,
+                          unsigned int relation)
+{
+        unsigned int index, old_index;
+        unsigned int arm_volt, safe_arm_volt = 0;
+        int ret = 0;
+        struct cpufreq_frequency_table *freq_table = exynos_info->freq_table;
+        unsigned int *volt_table = exynos_info->volt_table;
+        unsigned int mpll_freq_khz = exynos_info->mpll_freq_khz;
+
+        mutex_lock(&cpufreq_lock);
+
+        freqs.old = policy->cur;
+
+        if (frequency_locked && target_freq != locking_frequency) {
+                ret = -EAGAIN;
+                goto out;
+        }
+
+        if (cpufreq_frequency_table_target(policy, freq_table,
+                                           freqs.old, relation, &old_index)) {
+                ret = -EINVAL;
+                goto out;
+        }
+
+        if (cpufreq_frequency_table_target(policy, freq_table,
+                                           target_freq, relation, &index)) {
+                ret = -EINVAL;
+                goto out;
+        }
+
+        freqs.new = freq_table[index].frequency;
+        freqs.cpu = policy->cpu;
+
+        /*
+         * ARM clock source will be changed APLL to MPLL temporary
+         * To support this level, need to control regulator for
+         * required voltage level
+         */
+        if (exynos_info->need_apll_change != NULL) {
+                if (exynos_info->need_apll_change(old_index, index) &&
+                   (freq_table[index].frequency < mpll_freq_khz) &&
+                   (freq_table[old_index].frequency < mpll_freq_khz))
+                        safe_arm_volt = volt_table[exynos_info->pll_safe_idx];
+        }
+        arm_volt = volt_table[index];
+
+        cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+
+        /* When the new frequency is higher than current frequency */
+        if ((freqs.new > freqs.old) && !safe_arm_volt) {
+                /* Firstly, voltage up to increase frequency */
+                regulator_set_voltage(arm_regulator, arm_volt,
+                                arm_volt);
+        }
+
+        if (safe_arm_volt)
+                regulator_set_voltage(arm_regulator, safe_arm_volt,
+                                      safe_arm_volt);
+        if (freqs.new != freqs.old)
+                exynos_info->set_freq(old_index, index);
+
+        cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+
+        /* When the new frequency is lower than current frequency */
+        if ((freqs.new < freqs.old) ||
+           ((freqs.new > freqs.old) && safe_arm_volt)) {
+                /* down the voltage after frequency change */
+                regulator_set_voltage(arm_regulator, arm_volt,
+                                arm_volt);
+        }
+
+out:
+        mutex_unlock(&cpufreq_lock);
+
+        return ret;
+}
+
+#ifdef CONFIG_PM
+static int exynos_cpufreq_suspend(struct cpufreq_policy *policy)
+{
+        return 0;
+}
+
+static int exynos_cpufreq_resume(struct cpufreq_policy *policy)
+{
+        return 0;
+}
+#endif
+
+/**
+ * exynos_cpufreq_pm_notifier - block CPUFREQ's activities in suspend-resume
+ *                      context
+ * @notifier
+ * @pm_event
+ * @v
+ *
+ * While frequency_locked == true, target() ignores every frequency but
+ * locking_frequency. The locking_frequency value is the initial frequency,
+ * which is set by the bootloader. In order to eliminate possible
+ * inconsistency in clock values, we save and restore frequencies during
+ * suspend and resume and block CPUFREQ activities. Note that the standard
+ * suspend/resume cannot be used as they are too deep (syscore_ops) for
+ * regulator actions.
+ */
+static int exynos_cpufreq_pm_notifier(struct notifier_block *notifier,
+                                       unsigned long pm_event, void *v)
+{
+        struct cpufreq_policy *policy = cpufreq_cpu_get(0); /* boot CPU */
+        static unsigned int saved_frequency;
+        unsigned int temp;
+
+        mutex_lock(&cpufreq_lock);
+        switch (pm_event) {
+        case PM_SUSPEND_PREPARE:
+                if (frequency_locked)
+                        goto out;
+
+                frequency_locked = true;
+
+                if (locking_frequency) {
+                        saved_frequency = exynos_getspeed(0);
+
+                        mutex_unlock(&cpufreq_lock);
+                        exynos_target(policy, locking_frequency,
+                                      CPUFREQ_RELATION_H);
+                        mutex_lock(&cpufreq_lock);
+                }
+                break;
+
+        case PM_POST_SUSPEND:
+                if (saved_frequency) {
+                        /*
+                         * While frequency_locked, only locking_frequency
+                         * is valid for target(). In order to use
+                         * saved_frequency while keeping frequency_locked,
+                         * we temporarly overwrite locking_frequency.
+                         */
+                        temp = locking_frequency;
+                        locking_frequency = saved_frequency;
+
+                        mutex_unlock(&cpufreq_lock);
+                        exynos_target(policy, locking_frequency,
+                                      CPUFREQ_RELATION_H);
+                        mutex_lock(&cpufreq_lock);
+
+                        locking_frequency = temp;
+                }
+                frequency_locked = false;
+                break;
+        }
+out:
+        mutex_unlock(&cpufreq_lock);
+
+        return NOTIFY_OK;
+}
+
+static struct notifier_block exynos_cpufreq_nb = {
+        .notifier_call = exynos_cpufreq_pm_notifier,
+};
+
+static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
+{
+        policy->cur = policy->min = policy->max = exynos_getspeed(policy->cpu);
+
+        cpufreq_frequency_table_get_attr(exynos_info->freq_table, policy->cpu);
+
+        /* set the transition latency value */
+        policy->cpuinfo.transition_latency = 100000;
+
+        /*
+         * EXYNOS4 multi-core processors has 2 cores
+         * that the frequency cannot be set independently.
+         * Each cpu is bound to the same speed.
+         * So the affected cpu is all of the cpus.
+         */
+        if (num_online_cpus() == 1) {
+                cpumask_copy(policy->related_cpus, cpu_possible_mask);
+                cpumask_copy(policy->cpus, cpu_online_mask);
+        } else {
+                cpumask_setall(policy->cpus);
+        }
+
+        return cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table);
+}
+
+static struct cpufreq_driver exynos_driver = {
+        .flags          = CPUFREQ_STICKY,
+        .verify         = exynos_verify_speed,
+        .target         = exynos_target,
+        .get            = exynos_getspeed,
+        .init           = exynos_cpufreq_cpu_init,
+        .name           = "exynos_cpufreq",
+#ifdef CONFIG_PM
+        .suspend        = exynos_cpufreq_suspend,
+        .resume         = exynos_cpufreq_resume,
+#endif
+};
+
+static int __init exynos_cpufreq_init(void)
+{
+        int ret = -EINVAL;
+
+        exynos_info = kzalloc(sizeof(struct exynos_dvfs_info), GFP_KERNEL);
+        if (!exynos_info)
+                return -ENOMEM;
+
+        if (soc_is_exynos4210())
+                ret = exynos4210_cpufreq_init(exynos_info);
+        else
+                pr_err("%s: CPU type not found\n", __func__);
+
+        if (ret)
+                goto err_vdd_arm;
+
+        if (exynos_info->set_freq == NULL) {
+                pr_err("%s: No set_freq function (ERR)\n", __func__);
+                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__);
+                goto err_vdd_arm;
+        }
+
+        register_pm_notifier(&exynos_cpufreq_nb);
+
+        if (cpufreq_register_driver(&exynos_driver)) {
+                pr_err("%s: failed to register cpufreq driver\n", __func__);
+                goto err_cpufreq;
+        }
+
+        return 0;
+err_cpufreq:
+        unregister_pm_notifier(&exynos_cpufreq_nb);
+
+        if (!IS_ERR(arm_regulator))
+                regulator_put(arm_regulator);
+err_vdd_arm:
+        kfree(exynos_info);
+        pr_debug("%s: failed initialization\n", __func__);
+        return -EINVAL;
+}
+late_initcall(exynos_cpufreq_init);
diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c
index ab9741fab92..065da5b702f 100644
--- a/drivers/cpufreq/exynos4210-cpufreq.c
+++ b/drivers/cpufreq/exynos4210-cpufreq.c
@@ -2,61 +2,52 @@
  * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
  *              http://www.samsung.com
  *
- * EXYNOS4 - CPU frequency scaling support
+ * EXYNOS4210 - CPU frequency scaling support
  *
  * 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/types.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/slab.h>
-#include <linux/regulator/consumer.h>
 #include <linux/cpufreq.h>
-#include <linux/notifier.h>
-#include <linux/suspend.h>
 
-#include <mach/map.h>
 #include <mach/regs-clock.h>
-#include <mach/regs-mem.h>
+#include <mach/cpufreq.h>
 
-#include <plat/clock.h>
-#include <plat/pm.h>
+#define CPUFREQ_LEVEL_END       L5
+
+static int max_support_idx = L0;
+static int min_support_idx = (CPUFREQ_LEVEL_END - 1);
 
 static struct clk *cpu_clk;
 static struct clk *moutcore;
 static struct clk *mout_mpll;
 static struct clk *mout_apll;
 
-static struct regulator *arm_regulator;
-static struct regulator *int_regulator;
-
-static struct cpufreq_freqs freqs;
-static unsigned int memtype;
-
-static unsigned int locking_frequency;
-static bool frequency_locked;
-static DEFINE_MUTEX(cpufreq_lock);
-
-enum exynos4_memory_type {
-        DDR2 = 4,
-        LPDDR2,
-        DDR3,
+struct cpufreq_clkdiv {
+        unsigned int index;
+        unsigned int clkdiv;
 };
 
-enum cpufreq_level_index {
-        L0, L1, L2, L3, CPUFREQ_LEVEL_END,
+static unsigned int exynos4210_volt_table[CPUFREQ_LEVEL_END] = {
+        1250000, 1150000, 1050000, 975000, 950000,
 };
 
-static struct cpufreq_frequency_table exynos4_freq_table[] = {
-        {L0, 1000*1000},
-        {L1, 800*1000},
-        {L2, 400*1000},
-        {L3, 100*1000},
+
+static struct cpufreq_clkdiv exynos4210_clkdiv_table[CPUFREQ_LEVEL_END];
+
+static struct cpufreq_frequency_table exynos4210_freq_table[] = {
+        {L0, 1200*1000},
+        {L1, 1000*1000},
+        {L2, 800*1000},
+        {L3, 500*1000},
+        {L4, 200*1000},
         {0, CPUFREQ_TABLE_END},
 };
 
@@ -67,17 +58,20 @@ static unsigned int clkdiv_cpu0[CPUFREQ_LEVEL_END][7] = {
          *              DIVATB, DIVPCLK_DBG, DIVAPLL }
          */
 
-        /* ARM L0: 1000MHz */
-        { 0, 3, 7, 3, 3, 0, 1 },
+        /* ARM L0: 1200MHz */
+        { 0, 3, 7, 3, 4, 1, 7 },
 
-        /* ARM L1: 800MHz */
-        { 0, 3, 7, 3, 3, 0, 1 },
+        /* ARM L1: 1000MHz */
+        { 0, 3, 7, 3, 4, 1, 7 },
 
-        /* ARM L2: 400MHz */
-        { 0, 1, 3, 1, 3, 0, 1 },
+        /* ARM L2: 800MHz */
+        { 0, 3, 7, 3, 3, 1, 7 },
 
-        /* ARM L3: 100MHz */
-        { 0, 0, 1, 0, 3, 1, 1 },
+        /* ARM L3: 500MHz */
+        { 0, 3, 7, 3, 3, 1, 7 },
+
+        /* ARM L4: 200MHz */
+        { 0, 1, 3, 1, 3, 1, 0 },
 };
 
 static unsigned int clkdiv_cpu1[CPUFREQ_LEVEL_END][2] = {
@@ -86,147 +80,46 @@ static unsigned int clkdiv_cpu1[CPUFREQ_LEVEL_END][2] = {
          * { DIVCOPY, DIVHPM }
          */
 
-         /* ARM L0: 1000MHz */
-        { 3, 0 },
+        /* ARM L0: 1200MHz */
+        { 5, 0 },
 
-        /* ARM L1: 800MHz */
-        { 3, 0 },
+        /* ARM L1: 1000MHz */
+        { 4, 0 },
 
-        /* ARM L2: 400MHz */
+        /* ARM L2: 800MHz */
         { 3, 0 },
 
-        /* ARM L3: 100MHz */
+        /* ARM L3: 500MHz */
         { 3, 0 },
-};
-
-static unsigned int clkdiv_dmc0[CPUFREQ_LEVEL_END][8] = {
-        /*
-         * Clock divider value for following
-         * { DIVACP, DIVACP_PCLK, DIVDPHY, DIVDMC, DIVDMCD
-         *              DIVDMCP, DIVCOPY2, DIVCORE_TIMERS }
-         */
-
-        /* DMC L0: 400MHz */
-        { 3, 1, 1, 1, 1, 1, 3, 1 },
-
-        /* DMC L1: 400MHz */
-        { 3, 1, 1, 1, 1, 1, 3, 1 },
-
-        /* DMC L2: 266.7MHz */
-        { 7, 1, 1, 2, 1, 1, 3, 1 },
-
-        /* DMC L3: 200MHz */
-        { 7, 1, 1, 3, 1, 1, 3, 1 },
-};
-
-static unsigned int clkdiv_top[CPUFREQ_LEVEL_END][5] = {
-        /*
-         * Clock divider value for following
-         * { DIVACLK200, DIVACLK100, DIVACLK160, DIVACLK133, DIVONENAND }
-         */
 
-        /* ACLK200 L0: 200MHz */
-        { 3, 7, 4, 5, 1 },
-
-        /* ACLK200 L1: 200MHz */
-        { 3, 7, 4, 5, 1 },
-
-        /* ACLK200 L2: 160MHz */
-        { 4, 7, 5, 7, 1 },
-
-        /* ACLK200 L3: 133.3MHz */
-        { 5, 7, 7, 7, 1 },
-};
-
-static unsigned int clkdiv_lr_bus[CPUFREQ_LEVEL_END][2] = {
-        /*
-         * Clock divider value for following
-         * { DIVGDL/R, DIVGPL/R }
-         */
-
-        /* ACLK_GDL/R L0: 200MHz */
-        { 3, 1 },
-
-        /* ACLK_GDL/R L1: 200MHz */
-        { 3, 1 },
-
-        /* ACLK_GDL/R L2: 160MHz */
-        { 4, 1 },
-
-        /* ACLK_GDL/R L3: 133.3MHz */
-        { 5, 1 },
-};
-
-struct cpufreq_voltage_table {
-        unsigned int    index;          /* any */
-        unsigned int    arm_volt;       /* uV */
-        unsigned int    int_volt;
+        /* ARM L4: 200MHz */
+        { 3, 0 },
 };
 
-static struct cpufreq_voltage_table exynos4_volt_table[CPUFREQ_LEVEL_END] = {
-        {
-                .index          = L0,
-                .arm_volt       = 1200000,
-                .int_volt       = 1100000,
-        }, {
-                .index          = L1,
-                .arm_volt       = 1100000,
-                .int_volt       = 1100000,
-        }, {
-                .index          = L2,
-                .arm_volt       = 1000000,
-                .int_volt       = 1000000,
-        }, {
-                .index          = L3,
-                .arm_volt       = 900000,
-                .int_volt       = 1000000,
-        },
-};
+static unsigned int exynos4210_apll_pms_table[CPUFREQ_LEVEL_END] = {
+        /* APLL FOUT L0: 1200MHz */
+        ((150 << 16) | (3 << 8) | 1),
 
-static unsigned int exynos4_apll_pms_table[CPUFREQ_LEVEL_END] = {
-        /* APLL FOUT L0: 1000MHz */
+        /* APLL FOUT L1: 1000MHz */
         ((250 << 16) | (6 << 8) | 1),
 
-        /* APLL FOUT L1: 800MHz */
+        /* APLL FOUT L2: 800MHz */
         ((200 << 16) | (6 << 8) | 1),
 
-        /* APLL FOUT L2 : 400MHz */
-        ((200 << 16) | (6 << 8) | 2),
+        /* APLL FOUT L3: 500MHz */
+        ((250 << 16) | (6 << 8) | 2),
 
-        /* APLL FOUT L3: 100MHz */
-        ((200 << 16) | (6 << 8) | 4),
+        /* APLL FOUT L4: 200MHz */
+        ((200 << 16) | (6 << 8) | 3),
 };
 
-static int exynos4_verify_speed(struct cpufreq_policy *policy)
-{
-        return cpufreq_frequency_table_verify(policy, exynos4_freq_table);
-}
-
-static unsigned int exynos4_getspeed(unsigned int cpu)
-{
-        return clk_get_rate(cpu_clk) / 1000;
-}
-
-static void exynos4_set_clkdiv(unsigned int div_index)
+static void exynos4210_set_clkdiv(unsigned int div_index)
 {
         unsigned int tmp;
 
         /* Change Divider - CPU0 */
 
-        tmp = __raw_readl(S5P_CLKDIV_CPU);
-
-        tmp &= ~(S5P_CLKDIV_CPU0_CORE_MASK | S5P_CLKDIV_CPU0_COREM0_MASK |
-                S5P_CLKDIV_CPU0_COREM1_MASK | S5P_CLKDIV_CPU0_PERIPH_MASK |
-                S5P_CLKDIV_CPU0_ATB_MASK | S5P_CLKDIV_CPU0_PCLKDBG_MASK |
-                S5P_CLKDIV_CPU0_APLL_MASK);
-
-        tmp |= ((clkdiv_cpu0[div_index][0] << S5P_CLKDIV_CPU0_CORE_SHIFT) |
-                (clkdiv_cpu0[div_index][1] << S5P_CLKDIV_CPU0_COREM0_SHIFT) |
-                (clkdiv_cpu0[div_index][2] << S5P_CLKDIV_CPU0_COREM1_SHIFT) |
-                (clkdiv_cpu0[div_index][3] << S5P_CLKDIV_CPU0_PERIPH_SHIFT) |
-                (clkdiv_cpu0[div_index][4] << S5P_CLKDIV_CPU0_ATB_SHIFT) |
-                (clkdiv_cpu0[div_index][5] << S5P_CLKDIV_CPU0_PCLKDBG_SHIFT) |
-                (clkdiv_cpu0[div_index][6] << S5P_CLKDIV_CPU0_APLL_SHIFT));
+        tmp = exynos4210_clkdiv_table[div_index].clkdiv;
 
         __raw_writel(tmp, S5P_CLKDIV_CPU);
 
@@ -248,83 +141,9 @@ static void exynos4_set_clkdiv(unsigned int div_index)
         do {
                 tmp = __raw_readl(S5P_CLKDIV_STATCPU1);
         } while (tmp & 0x11);
-
-        /* Change Divider - DMC0 */
-
-        tmp = __raw_readl(S5P_CLKDIV_DMC0);
-
-        tmp &= ~(S5P_CLKDIV_DMC0_ACP_MASK | S5P_CLKDIV_DMC0_ACPPCLK_MASK |
-                S5P_CLKDIV_DMC0_DPHY_MASK | S5P_CLKDIV_DMC0_DMC_MASK |
-                S5P_CLKDIV_DMC0_DMCD_MASK | S5P_CLKDIV_DMC0_DMCP_MASK |
-                S5P_CLKDIV_DMC0_COPY2_MASK | S5P_CLKDIV_DMC0_CORETI_MASK);
-
-        tmp |= ((clkdiv_dmc0[div_index][0] << S5P_CLKDIV_DMC0_ACP_SHIFT) |
-                (clkdiv_dmc0[div_index][1] << S5P_CLKDIV_DMC0_ACPPCLK_SHIFT) |
-                (clkdiv_dmc0[div_index][2] << S5P_CLKDIV_DMC0_DPHY_SHIFT) |
-                (clkdiv_dmc0[div_index][3] << S5P_CLKDIV_DMC0_DMC_SHIFT) |
-                (clkdiv_dmc0[div_index][4] << S5P_CLKDIV_DMC0_DMCD_SHIFT) |
-                (clkdiv_dmc0[div_index][5] << S5P_CLKDIV_DMC0_DMCP_SHIFT) |
-                (clkdiv_dmc0[div_index][6] << S5P_CLKDIV_DMC0_COPY2_SHIFT) |
-                (clkdiv_dmc0[div_index][7] << S5P_CLKDIV_DMC0_CORETI_SHIFT));
-
-        __raw_writel(tmp, S5P_CLKDIV_DMC0);
-
-        do {
-                tmp = __raw_readl(S5P_CLKDIV_STAT_DMC0);
-        } while (tmp & 0x11111111);
-
-        /* Change Divider - TOP */
-
-        tmp = __raw_readl(S5P_CLKDIV_TOP);
-
-        tmp &= ~(S5P_CLKDIV_TOP_ACLK200_MASK | S5P_CLKDIV_TOP_ACLK100_MASK |
-                S5P_CLKDIV_TOP_ACLK160_MASK | S5P_CLKDIV_TOP_ACLK133_MASK |
-                S5P_CLKDIV_TOP_ONENAND_MASK);
-
-        tmp |= ((clkdiv_top[div_index][0] << S5P_CLKDIV_TOP_ACLK200_SHIFT) |
-                (clkdiv_top[div_index][1] << S5P_CLKDIV_TOP_ACLK100_SHIFT) |
-                (clkdiv_top[div_index][2] << S5P_CLKDIV_TOP_ACLK160_SHIFT) |
-                (clkdiv_top[div_index][3] << S5P_CLKDIV_TOP_ACLK133_SHIFT) |
-                (clkdiv_top[div_index][4] << S5P_CLKDIV_TOP_ONENAND_SHIFT));
-
-        __raw_writel(tmp, S5P_CLKDIV_TOP);
-
-        do {
-                tmp = __raw_readl(S5P_CLKDIV_STAT_TOP);
-        } while (tmp & 0x11111);
-
-        /* Change Divider - LEFTBUS */
-
-        tmp = __raw_readl(S5P_CLKDIV_LEFTBUS);
-
-        tmp &= ~(S5P_CLKDIV_BUS_GDLR_MASK | S5P_CLKDIV_BUS_GPLR_MASK);
-
-        tmp |= ((clkdiv_lr_bus[div_index][0] << S5P_CLKDIV_BUS_GDLR_SHIFT) |
-                (clkdiv_lr_bus[div_index][1] << S5P_CLKDIV_BUS_GPLR_SHIFT));
-
-        __raw_writel(tmp, S5P_CLKDIV_LEFTBUS);
-
-        do {
-                tmp = __raw_readl(S5P_CLKDIV_STAT_LEFTBUS);
-        } while (tmp & 0x11);
-
-        /* Change Divider - RIGHTBUS */
-
-        tmp = __raw_readl(S5P_CLKDIV_RIGHTBUS);
-
-        tmp &= ~(S5P_CLKDIV_BUS_GDLR_MASK | S5P_CLKDIV_BUS_GPLR_MASK);
-
-        tmp |= ((clkdiv_lr_bus[div_index][0] << S5P_CLKDIV_BUS_GDLR_SHIFT) |
-                (clkdiv_lr_bus[div_index][1] << S5P_CLKDIV_BUS_GPLR_SHIFT));
-
-        __raw_writel(tmp, S5P_CLKDIV_RIGHTBUS);
-
-        do {
-                tmp = __raw_readl(S5P_CLKDIV_STAT_RIGHTBUS);
-        } while (tmp & 0x11);
 }
 
-static void exynos4_set_apll(unsigned int index)
+static void exynos4210_set_apll(unsigned int index)
 {
         unsigned int tmp;
 
@@ -343,7 +162,7 @@ static void exynos4_set_apll(unsigned int index)
         /* 3. Change PLL PMS values */
         tmp = __raw_readl(S5P_APLL_CON0);
         tmp &= ~((0x3ff << 16) | (0x3f << 8) | (0x7 << 0));
-        tmp |= exynos4_apll_pms_table[index];
+        tmp |= exynos4210_apll_pms_table[index];
         __raw_writel(tmp, S5P_APLL_CON0);
 
         /* 4. wait_lock_time */
@@ -360,328 +179,126 @@ static void exynos4_set_apll(unsigned int index)
         } while (tmp != (0x1 << S5P_CLKSRC_CPU_MUXCORE_SHIFT));
 }
 
-static void exynos4_set_frequency(unsigned int old_index, unsigned int new_index)
+bool exynos4210_pms_change(unsigned int old_index, unsigned int new_index)
+{
+        unsigned int old_pm = (exynos4210_apll_pms_table[old_index] >> 8);
+        unsigned int new_pm = (exynos4210_apll_pms_table[new_index] >> 8);
+
+        return (old_pm == new_pm) ? 0 : 1;
+}
+
+static void exynos4210_set_frequency(unsigned int old_index,
+                                     unsigned int new_index)
 {
         unsigned int tmp;
 
         if (old_index > new_index) {
-                /* The frequency changing to L0 needs to change apll */
-                if (freqs.new == exynos4_freq_table[L0].frequency) {
-                        /* 1. Change the system clock divider values */
-                        exynos4_set_clkdiv(new_index);
-
-                        /* 2. Change the apll m,p,s value */
-                        exynos4_set_apll(new_index);
-                } else {
+                if (!exynos4210_pms_change(old_index, new_index)) {
                         /* 1. Change the system clock divider values */
-                        exynos4_set_clkdiv(new_index);
+                        exynos4210_set_clkdiv(new_index);
 
                         /* 2. Change just s value in apll m,p,s value */
                         tmp = __raw_readl(S5P_APLL_CON0);
                         tmp &= ~(0x7 << 0);
-                        tmp |= (exynos4_apll_pms_table[new_index] & 0x7);
+                        tmp |= (exynos4210_apll_pms_table[new_index] & 0x7);
                         __raw_writel(tmp, S5P_APLL_CON0);
-                }
-        }
-
-        else if (old_index < new_index) {
-                /* The frequency changing from L0 needs to change apll */
-                if (freqs.old == exynos4_freq_table[L0].frequency) {
-                        /* 1. Change the apll m,p,s value */
-                        exynos4_set_apll(new_index);
-
-                        /* 2. Change the system clock divider values */
-                        exynos4_set_clkdiv(new_index);
                 } else {
+                        /* Clock Configuration Procedure */
+                        /* 1. Change the system clock divider values */
+                        exynos4210_set_clkdiv(new_index);
+                        /* 2. Change the apll m,p,s value */
+                        exynos4210_set_apll(new_index);
+                }
+        } else if (old_index < new_index) {
+                if (!exynos4210_pms_change(old_index, new_index)) {
                         /* 1. Change just s value in apll m,p,s value */
                         tmp = __raw_readl(S5P_APLL_CON0);
                         tmp &= ~(0x7 << 0);
-                        tmp |= (exynos4_apll_pms_table[new_index] & 0x7);
+                        tmp |= (exynos4210_apll_pms_table[new_index] & 0x7);
                         __raw_writel(tmp, S5P_APLL_CON0);
 
                         /* 2. Change the system clock divider values */
-                        exynos4_set_clkdiv(new_index);
+                        exynos4210_set_clkdiv(new_index);
+                } else {
+                        /* Clock Configuration Procedure */
+                        /* 1. Change the apll m,p,s value */
+                        exynos4210_set_apll(new_index);
+                        /* 2. Change the system clock divider values */
+                        exynos4210_set_clkdiv(new_index);
                 }
         }
 }
 
-static int exynos4_target(struct cpufreq_policy *policy,
-                          unsigned int target_freq,
-                          unsigned int relation)
-{
-        unsigned int index, old_index;
-        unsigned int arm_volt, int_volt;
-        int err = -EINVAL;
-
-        freqs.old = exynos4_getspeed(policy->cpu);
-
-        mutex_lock(&cpufreq_lock);
-
-        if (frequency_locked && target_freq != locking_frequency) {
-                err = -EAGAIN;
-                goto out;
-        }
-
-        if (cpufreq_frequency_table_target(policy, exynos4_freq_table,
-                                           freqs.old, relation, &old_index))
-                goto out;
-
-        if (cpufreq_frequency_table_target(policy, exynos4_freq_table,
-                                           target_freq, relation, &index))
-                goto out;
-
-        err = 0;
-
-        freqs.new = exynos4_freq_table[index].frequency;
-        freqs.cpu = policy->cpu;
-
-        if (freqs.new == freqs.old)
-                goto out;
-
-        /* get the voltage value */
-        arm_volt = exynos4_volt_table[index].arm_volt;
-        int_volt = exynos4_volt_table[index].int_volt;
-
-        cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
-        /* control regulator */
-        if (freqs.new > freqs.old) {
-                /* Voltage up */
-                regulator_set_voltage(arm_regulator, arm_volt, arm_volt);
-                regulator_set_voltage(int_regulator, int_volt, int_volt);
-        }
-
-        /* Clock Configuration Procedure */
-        exynos4_set_frequency(old_index, index);
-
-        /* control regulator */
-        if (freqs.new < freqs.old) {
-                /* Voltage down */
-                regulator_set_voltage(arm_regulator, arm_volt, arm_volt);
-                regulator_set_voltage(int_regulator, int_volt, int_volt);
-        }
-
-        cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-out:
-        mutex_unlock(&cpufreq_lock);
-        return err;
-}
-
-#ifdef CONFIG_PM
-/*
- * These suspend/resume are used as syscore_ops, it is already too
- * late to set regulator voltages at this stage.
- */
-static int exynos4_cpufreq_suspend(struct cpufreq_policy *policy)
-{
-        return 0;
-}
-
-static int exynos4_cpufreq_resume(struct cpufreq_policy *policy)
+int exynos4210_cpufreq_init(struct exynos_dvfs_info *info)
 {
-        return 0;
-}
-#endif
-
-/**
- * exynos4_cpufreq_pm_notifier - block CPUFREQ's activities in suspend-resume
- *                      context
- * @notifier
- * @pm_event
- * @v
- *
- * While frequency_locked == true, target() ignores every frequency but
- * locking_frequency. The locking_frequency value is the initial frequency,
- * which is set by the bootloader. In order to eliminate possible
- * inconsistency in clock values, we save and restore frequencies during
- * suspend and resume and block CPUFREQ activities. Note that the standard
- * suspend/resume cannot be used as they are too deep (syscore_ops) for
- * regulator actions.
- */
-static int exynos4_cpufreq_pm_notifier(struct notifier_block *notifier,
-                                       unsigned long pm_event, void *v)
-{
-        struct cpufreq_policy *policy = cpufreq_cpu_get(0); /* boot CPU */
-        static unsigned int saved_frequency;
-        unsigned int temp;
-
-        mutex_lock(&cpufreq_lock);
-        switch (pm_event) {
-        case PM_SUSPEND_PREPARE:
-                if (frequency_locked)
-                        goto out;
-                frequency_locked = true;
-
-                if (locking_frequency) {
-                        saved_frequency = exynos4_getspeed(0);
-
-                        mutex_unlock(&cpufreq_lock);
-                        exynos4_target(policy, locking_frequency,
-                                       CPUFREQ_RELATION_H);
-                        mutex_lock(&cpufreq_lock);
-                }
-
-                break;
-        case PM_POST_SUSPEND:
-
-                if (saved_frequency) {
-                        /*
-                         * While frequency_locked, only locking_frequency
-                         * is valid for target(). In order to use
-                         * saved_frequency while keeping frequency_locked,
-                         * we temporarly overwrite locking_frequency.
-                         */
-                        temp = locking_frequency;
-                        locking_frequency = saved_frequency;
-
-                        mutex_unlock(&cpufreq_lock);
-                        exynos4_target(policy, locking_frequency,
-                                       CPUFREQ_RELATION_H);
-                        mutex_lock(&cpufreq_lock);
-
-                        locking_frequency = temp;
-                }
-
-                frequency_locked = false;
-                break;
-        }
-out:
-        mutex_unlock(&cpufreq_lock);
-
-        return NOTIFY_OK;
-}
-
-static struct notifier_block exynos4_cpufreq_nb = {
-        .notifier_call = exynos4_cpufreq_pm_notifier,
-};
-
-static int exynos4_cpufreq_cpu_init(struct cpufreq_policy *policy)
-{
-        int ret;
-
-        policy->cur = policy->min = policy->max = exynos4_getspeed(policy->cpu);
-
-        cpufreq_frequency_table_get_attr(exynos4_freq_table, policy->cpu);
-
-        /* set the transition latency value */
-        policy->cpuinfo.transition_latency = 100000;
-
-        /*
-         * EXYNOS4 multi-core processors has 2 cores
-         * that the frequency cannot be set independently.
-         * Each cpu is bound to the same speed.
-         * So the affected cpu is all of the cpus.
-         */
-        cpumask_setall(policy->cpus);
-
-        ret = cpufreq_frequency_table_cpuinfo(policy, exynos4_freq_table);
-        if (ret)
-                return ret;
-
-        cpufreq_frequency_table_get_attr(exynos4_freq_table, policy->cpu);
-
-        return 0;
-}
-
-static int exynos4_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
-        cpufreq_frequency_table_put_attr(policy->cpu);
-        return 0;
-}
-
-static struct freq_attr *exynos4_cpufreq_attr[] = {
-        &cpufreq_freq_attr_scaling_available_freqs,
-        NULL,
-};
-
-static struct cpufreq_driver exynos4_driver = {
-        .flags          = CPUFREQ_STICKY,
-        .verify         = exynos4_verify_speed,
-        .target         = exynos4_target,
-        .get            = exynos4_getspeed,
-        .init           = exynos4_cpufreq_cpu_init,
-        .exit           = exynos4_cpufreq_cpu_exit,
-        .name           = "exynos4_cpufreq",
-        .attr           = exynos4_cpufreq_attr,
-#ifdef CONFIG_PM
-        .suspend        = exynos4_cpufreq_suspend,
-        .resume         = exynos4_cpufreq_resume,
-#endif
-};
+        int i;
+        unsigned int tmp;
+        unsigned long rate;
 
-static int __init exynos4_cpufreq_init(void)
-{
         cpu_clk = clk_get(NULL, "armclk");
         if (IS_ERR(cpu_clk))
                 return PTR_ERR(cpu_clk);
 
-        locking_frequency = exynos4_getspeed(0);
-
         moutcore = clk_get(NULL, "moutcore");
         if (IS_ERR(moutcore))
-                goto out;
+                goto err_moutcore;
 
         mout_mpll = clk_get(NULL, "mout_mpll");
         if (IS_ERR(mout_mpll))
-                goto out;
+                goto err_mout_mpll;
+
+        rate = clk_get_rate(mout_mpll) / 1000;
 
         mout_apll = clk_get(NULL, "mout_apll");
         if (IS_ERR(mout_apll))
-                goto out;
+                goto err_mout_apll;
 
-        arm_regulator = regulator_get(NULL, "vdd_arm");
-        if (IS_ERR(arm_regulator)) {
-                printk(KERN_ERR "failed to get resource %s\n", "vdd_arm");
-                goto out;
-        }
+        tmp = __raw_readl(S5P_CLKDIV_CPU);
 
-        int_regulator = regulator_get(NULL, "vdd_int");
-        if (IS_ERR(int_regulator)) {
-                printk(KERN_ERR "failed to get resource %s\n", "vdd_int");
-                goto out;
+        for (i = L0; i <  CPUFREQ_LEVEL_END; i++) {
+                tmp &= ~(S5P_CLKDIV_CPU0_CORE_MASK |
+                        S5P_CLKDIV_CPU0_COREM0_MASK |
+                        S5P_CLKDIV_CPU0_COREM1_MASK |
+                        S5P_CLKDIV_CPU0_PERIPH_MASK |
+                        S5P_CLKDIV_CPU0_ATB_MASK |
+                        S5P_CLKDIV_CPU0_PCLKDBG_MASK |
+                        S5P_CLKDIV_CPU0_APLL_MASK);
+
+                tmp |= ((clkdiv_cpu0[i][0] << S5P_CLKDIV_CPU0_CORE_SHIFT) |
+                        (clkdiv_cpu0[i][1] << S5P_CLKDIV_CPU0_COREM0_SHIFT) |
+                        (clkdiv_cpu0[i][2] << S5P_CLKDIV_CPU0_COREM1_SHIFT) |
+                        (clkdiv_cpu0[i][3] << S5P_CLKDIV_CPU0_PERIPH_SHIFT) |
+                        (clkdiv_cpu0[i][4] << S5P_CLKDIV_CPU0_ATB_SHIFT) |
+                        (clkdiv_cpu0[i][5] << S5P_CLKDIV_CPU0_PCLKDBG_SHIFT) |
+                        (clkdiv_cpu0[i][6] << S5P_CLKDIV_CPU0_APLL_SHIFT));
+
+                exynos4210_clkdiv_table[i].clkdiv = tmp;
         }
 
-        /*
-         * Check DRAM type.
-         * Because DVFS level is different according to DRAM type.
-         */
-        memtype = __raw_readl(S5P_VA_DMC0 + S5P_DMC0_MEMCON_OFFSET);
-        memtype = (memtype >> S5P_DMC0_MEMTYPE_SHIFT);
-        memtype &= S5P_DMC0_MEMTYPE_MASK;
-
-        if ((memtype < DDR2) && (memtype > DDR3)) {
-                printk(KERN_ERR "%s: wrong memtype= 0x%x\n", __func__, memtype);
-                goto out;
-        } else {
-                printk(KERN_DEBUG "%s: memtype= 0x%x\n", __func__, memtype);
-        }
-
-        register_pm_notifier(&exynos4_cpufreq_nb);
-
-        return cpufreq_register_driver(&exynos4_driver);
-
-out:
-        if (!IS_ERR(cpu_clk))
-                clk_put(cpu_clk);
+        info->mpll_freq_khz = rate;
+        info->pm_lock_idx = L2;
+        info->pll_safe_idx = L2;
+        info->max_support_idx = max_support_idx;
+        info->min_support_idx = min_support_idx;
+        info->cpu_clk = cpu_clk;
+        info->volt_table = exynos4210_volt_table;
+        info->freq_table = exynos4210_freq_table;
+        info->set_freq = exynos4210_set_frequency;
+        info->need_apll_change = exynos4210_pms_change;
 
-        if (!IS_ERR(moutcore))
-                clk_put(moutcore);
+        return 0;
 
+err_mout_apll:
         if (!IS_ERR(mout_mpll))
                 clk_put(mout_mpll);
+err_mout_mpll:
+        if (!IS_ERR(moutcore))
+                clk_put(moutcore);
+err_moutcore:
+        if (!IS_ERR(cpu_clk))
+                clk_put(cpu_clk);
 
-        if (!IS_ERR(mout_apll))
-                clk_put(mout_apll);
-
-        if (!IS_ERR(arm_regulator))
-                regulator_put(arm_regulator);
-
-        if (!IS_ERR(int_regulator))
-                regulator_put(int_regulator);
-
-        printk(KERN_ERR "%s: failed initialization\n", __func__);
-
+        pr_debug("%s: failed initialization\n", __func__);
         return -EINVAL;
 }
-late_initcall(exynos4_cpufreq_init);
+EXPORT_SYMBOL(exynos4210_cpufreq_init);
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
new file mode 100644
index 00000000000..5d04c57aae3
--- /dev/null
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -0,0 +1,274 @@
+/*
+ *  CPU frequency scaling for OMAP using OPP information
+ *
+ *  Copyright (C) 2005 Nokia Corporation
+ *  Written by Tony Lindgren <tony@atomide.com>
+ *
+ *  Based on cpu-sa1110.c, Copyright (C) 2001 Russell King
+ *
+ * Copyright (C) 2007-2011 Texas Instruments, Inc.
+ * - OMAP3/4 support by Rajendra Nayak, Santosh Shilimkar
+ *
+ * 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/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/cpufreq.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/opp.h>
+#include <linux/cpu.h>
+#include <linux/module.h>
+
+#include <asm/system.h>
+#include <asm/smp_plat.h>
+#include <asm/cpu.h>
+
+#include <plat/clock.h>
+#include <plat/omap-pm.h>
+#include <plat/common.h>
+#include <plat/omap_device.h>
+
+#include <mach/hardware.h>
+
+#ifdef CONFIG_SMP
+struct lpj_info {
+        unsigned long   ref;
+        unsigned int    freq;
+};
+
+static DEFINE_PER_CPU(struct lpj_info, lpj_ref);
+static struct lpj_info global_lpj_ref;
+#endif
+
+static struct cpufreq_frequency_table *freq_table;
+static atomic_t freq_table_users = ATOMIC_INIT(0);
+static struct clk *mpu_clk;
+static char *mpu_clk_name;
+static struct device *mpu_dev;
+
+static int omap_verify_speed(struct cpufreq_policy *policy)
+{
+        if (!freq_table)
+                return -EINVAL;
+        return cpufreq_frequency_table_verify(policy, freq_table);
+}
+
+static unsigned int omap_getspeed(unsigned int cpu)
+{
+        unsigned long rate;
+
+        if (cpu >= NR_CPUS)
+                return 0;
+
+        rate = clk_get_rate(mpu_clk) / 1000;
+        return rate;
+}
+
+static int omap_target(struct cpufreq_policy *policy,
+                       unsigned int target_freq,
+                       unsigned int relation)
+{
+        unsigned int i;
+        int ret = 0;
+        struct cpufreq_freqs freqs;
+
+        if (!freq_table) {
+                dev_err(mpu_dev, "%s: cpu%d: no freq table!\n", __func__,
+                                policy->cpu);
+                return -EINVAL;
+        }
+
+        ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
+                        relation, &i);
+        if (ret) {
+                dev_dbg(mpu_dev, "%s: cpu%d: no freq match for %d(ret=%d)\n",
+                        __func__, policy->cpu, target_freq, ret);
+                return ret;
+        }
+        freqs.new = freq_table[i].frequency;
+        if (!freqs.new) {
+                dev_err(mpu_dev, "%s: cpu%d: no match for freq %d\n", __func__,
+                        policy->cpu, target_freq);
+                return -EINVAL;
+        }
+
+        freqs.old = omap_getspeed(policy->cpu);
+        freqs.cpu = policy->cpu;
+
+        if (freqs.old == freqs.new && policy->cur == freqs.new)
+                return ret;
+
+        /* notifiers */
+        for_each_cpu(i, policy->cpus) {
+                freqs.cpu = i;
+                cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+        }
+
+#ifdef CONFIG_CPU_FREQ_DEBUG
+        pr_info("cpufreq-omap: transition: %u --> %u\n", freqs.old, freqs.new);
+#endif
+
+        ret = clk_set_rate(mpu_clk, freqs.new * 1000);
+        freqs.new = omap_getspeed(policy->cpu);
+
+#ifdef CONFIG_SMP
+        /*
+         * Note that loops_per_jiffy is not updated on SMP systems in
+         * cpufreq driver. So, update the per-CPU loops_per_jiffy value
+         * on frequency transition. We need to update all dependent CPUs.
+         */
+        for_each_cpu(i, policy->cpus) {
+                struct lpj_info *lpj = &per_cpu(lpj_ref, i);
+                if (!lpj->freq) {
+                        lpj->ref = per_cpu(cpu_data, i).loops_per_jiffy;
+                        lpj->freq = freqs.old;
+                }
+
+                per_cpu(cpu_data, i).loops_per_jiffy =
+                        cpufreq_scale(lpj->ref, lpj->freq, freqs.new);
+        }
+
+        /* And don't forget to adjust the global one */
+        if (!global_lpj_ref.freq) {
+                global_lpj_ref.ref = loops_per_jiffy;
+                global_lpj_ref.freq = freqs.old;
+        }
+        loops_per_jiffy = cpufreq_scale(global_lpj_ref.ref, global_lpj_ref.freq,
+                                        freqs.new);
+#endif
+
+        /* notifiers */
+        for_each_cpu(i, policy->cpus) {
+                freqs.cpu = i;
+                cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        }
+
+        return ret;
+}
+
+static inline void freq_table_free(void)
+{
+        if (atomic_dec_and_test(&freq_table_users))
+                opp_free_cpufreq_table(mpu_dev, &freq_table);
+}
+
+static int __cpuinit omap_cpu_init(struct cpufreq_policy *policy)
+{
+        int result = 0;
+
+        mpu_clk = clk_get(NULL, mpu_clk_name);
+        if (IS_ERR(mpu_clk))
+                return PTR_ERR(mpu_clk);
+
+        if (policy->cpu >= NR_CPUS) {
+                result = -EINVAL;
+                goto fail_ck;
+        }
+
+        policy->cur = policy->min = policy->max = omap_getspeed(policy->cpu);
+
+        if (atomic_inc_return(&freq_table_users) == 1)
+                result = opp_init_cpufreq_table(mpu_dev, &freq_table);
+
+        if (result) {
+                dev_err(mpu_dev, "%s: cpu%d: failed creating freq table[%d]\n",
+                                __func__, policy->cpu, result);
+                goto fail_ck;
+        }
+
+        result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
+        if (result)
+                goto fail_table;
+
+        cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
+
+        policy->min = policy->cpuinfo.min_freq;
+        policy->max = policy->cpuinfo.max_freq;
+        policy->cur = omap_getspeed(policy->cpu);
+
+        /*
+         * On OMAP SMP configuartion, both processors share the voltage
+         * and clock. So both CPUs needs to be scaled together and hence
+         * needs software co-ordination. Use cpufreq affected_cpus
+         * interface to handle this scenario. Additional is_smp() check
+         * is to keep SMP_ON_UP build working.
+         */
+        if (is_smp()) {
+                policy->shared_type = CPUFREQ_SHARED_TYPE_ANY;
+                cpumask_setall(policy->cpus);
+        }
+
+        /* FIXME: what's the actual transition time? */
+        policy->cpuinfo.transition_latency = 300 * 1000;
+
+        return 0;
+
+fail_table:
+        freq_table_free();
+fail_ck:
+        clk_put(mpu_clk);
+        return result;
+}
+
+static int omap_cpu_exit(struct cpufreq_policy *policy)
+{
+        freq_table_free();
+        clk_put(mpu_clk);
+        return 0;
+}
+
+static struct freq_attr *omap_cpufreq_attr[] = {
+        &cpufreq_freq_attr_scaling_available_freqs,
+        NULL,
+};
+
+static struct cpufreq_driver omap_driver = {
+        .flags          = CPUFREQ_STICKY,
+        .verify         = omap_verify_speed,
+        .target         = omap_target,
+        .get            = omap_getspeed,
+        .init           = omap_cpu_init,
+        .exit           = omap_cpu_exit,
+        .name           = "omap",
+        .attr           = omap_cpufreq_attr,
+};
+
+static int __init omap_cpufreq_init(void)
+{
+        if (cpu_is_omap24xx())
+                mpu_clk_name = "virt_prcm_set";
+        else if (cpu_is_omap34xx())
+                mpu_clk_name = "dpll1_ck";
+        else if (cpu_is_omap44xx())
+                mpu_clk_name = "dpll_mpu_ck";
+
+        if (!mpu_clk_name) {
+                pr_err("%s: unsupported Silicon?\n", __func__);
+                return -EINVAL;
+        }
+
+        mpu_dev = omap_device_get_by_hwmod_name("mpu");
+        if (!mpu_dev) {
+                pr_warning("%s: unable to get the mpu device\n", __func__);
+                return -EINVAL;
+        }
+
+        return cpufreq_register_driver(&omap_driver);
+}
+
+static void __exit omap_cpufreq_exit(void)
+{
+        cpufreq_unregister_driver(&omap_driver);
+}
+
+MODULE_DESCRIPTION("cpufreq driver for OMAP SoCs");
+MODULE_LICENSE("GPL");
+module_init(omap_cpufreq_init);
+module_exit(omap_cpufreq_exit);
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index bce576d7478..8f9b2ceeec8 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1,10 +1,11 @@
 /*
- *   (c) 2003-2010 Advanced Micro Devices, Inc.
+ *   (c) 2003-2012 Advanced Micro Devices, Inc.
  *  Your use of this code is subject to the terms and conditions of the
  *  GNU general public license version 2. See "COPYING" or
  *  http://www.gnu.org/licenses/gpl.html
  *
- *  Support : mark.langsdorf@amd.com
+ *  Maintainer:
+ *  Andreas Herrmann <andreas.herrmann3@amd.com>
  *
  *  Based on the powernow-k7.c module written by Dave Jones.
  *  (C) 2003 Dave Jones on behalf of SuSE Labs
@@ -16,12 +17,14 @@
  *  Valuable input gratefully received from Dave Jones, Pavel Machek,
  *  Dominik Brodowski, Jacob Shin, and others.
  *  Originally developed by Paul Devriendt.
- *  Processor information obtained from Chapter 9 (Power and Thermal Management)
- *  of the "BIOS and Kernel Developer's Guide for the AMD Athlon 64 and AMD
- *  Opteron Processors" available for download from www.amd.com
  *
- *  Tables for specific CPUs can be inferred from
- *     http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/30430.pdf
+ *  Processor information obtained from Chapter 9 (Power and Thermal
+ *  Management) of the "BIOS and Kernel Developer's Guide (BKDG) for
+ *  the AMD Athlon 64 and AMD Opteron Processors" and section "2.x
+ *  Power Management" in BKDGs for newer AMD CPU families.
+ *
+ *  Tables for specific CPUs can be inferred from AMD's processor
+ *  power and thermal data sheets, (e.g. 30417.pdf, 30430.pdf, 43375.pdf)
  */
 
 #include <linux/kernel.h>
@@ -54,6 +57,9 @@ static DEFINE_PER_CPU(struct powernow_k8_data *, powernow_data);
 
 static int cpu_family = CPU_OPTERON;
 
+/* array to map SW pstate number to acpi state */
+static u32 ps_to_as[8];
+
 /* core performance boost */
 static bool cpb_capable, cpb_enabled;
 static struct msr __percpu *msrs;
@@ -80,9 +86,9 @@ static u32 find_khz_freq_from_fid(u32 fid)
 }
 
 static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data,
-                u32 pstate)
+                                     u32 pstate)
 {
-        return data[pstate].frequency;
+        return data[ps_to_as[pstate]].frequency;
 }
 
 /* Return the vco fid for an input fid
@@ -926,23 +932,27 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data,
                         invalidate_entry(powernow_table, i);
                         continue;
                 }
-                rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi);
-                if (!(hi & HW_PSTATE_VALID_MASK)) {
-                        pr_debug("invalid pstate %d, ignoring\n", index);
-                        invalidate_entry(powernow_table, i);
-                        continue;
-                }
 
-                powernow_table[i].index = index;
+                ps_to_as[index] = i;
 
                 /* Frequency may be rounded for these */
                 if ((boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model < 10)
                                  || boot_cpu_data.x86 == 0x11) {
+
+                        rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi);
+                        if (!(hi & HW_PSTATE_VALID_MASK)) {
+                                pr_debug("invalid pstate %d, ignoring\n", index);
+                                invalidate_entry(powernow_table, i);
+                                continue;
+                        }
+
                         powernow_table[i].frequency =
                                 freq_from_fid_did(lo & 0x3f, (lo >> 6) & 7);
                 } else
                         powernow_table[i].frequency =
                                 data->acpi_data.states[i].core_frequency * 1000;
+
+                powernow_table[i].index = index;
         }
         return 0;
 }
@@ -1189,7 +1199,8 @@ static int powernowk8_target(struct cpufreq_policy *pol,
         powernow_k8_acpi_pst_values(data, newstate);
 
         if (cpu_family == CPU_HW_PSTATE)
-                ret = transition_frequency_pstate(data, newstate);
+                ret = transition_frequency_pstate(data,
+                        data->powernow_table[newstate].index);
         else
                 ret = transition_frequency_fidvid(data, newstate);
         if (ret) {
@@ -1202,7 +1213,7 @@ static int powernowk8_target(struct cpufreq_policy *pol,
 
         if (cpu_family == CPU_HW_PSTATE)
                 pol->cur = find_khz_freq_from_pstate(data->powernow_table,
-                                newstate);
+                                data->powernow_table[newstate].index);
         else
                 pol->cur = find_khz_freq_from_fid(data->currfid);
         ret = 0;
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 3475f65aeec..a5e72cb5f53 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -8,6 +8,8 @@
  * published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) "cpufreq: " fmt
+
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/init.h>
@@ -91,7 +93,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
         if (freqs.old == freqs.new)
                 return 0;
 
-        pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new);
+        pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new);
 
         cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
 
@@ -101,7 +103,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
                                             dvfs->vddarm_min,
                                             dvfs->vddarm_max);
                 if (ret != 0) {
-                        pr_err("cpufreq: Failed to set VDDARM for %dkHz: %d\n",
+                        pr_err("Failed to set VDDARM for %dkHz: %d\n",
                                freqs.new, ret);
                         goto err;
                 }
@@ -110,7 +112,7 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
 
         ret = clk_set_rate(armclk, freqs.new * 1000);
         if (ret < 0) {
-                pr_err("cpufreq: Failed to set rate %dkHz: %d\n",
+                pr_err("Failed to set rate %dkHz: %d\n",
                        freqs.new, ret);
                 goto err;
         }
@@ -123,14 +125,14 @@ static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
                                             dvfs->vddarm_min,
                                             dvfs->vddarm_max);
                 if (ret != 0) {
-                        pr_err("cpufreq: Failed to set VDDARM for %dkHz: %d\n",
+                        pr_err("Failed to set VDDARM for %dkHz: %d\n",
                                freqs.new, ret);
                         goto err_clk;
                 }
         }
 #endif
 
-        pr_debug("cpufreq: Set actual frequency %lukHz\n",
+        pr_debug("Set actual frequency %lukHz\n",
                  clk_get_rate(armclk) / 1000);
 
         return 0;
@@ -153,7 +155,7 @@ static void __init s3c64xx_cpufreq_config_regulator(void)
 
         count = regulator_count_voltages(vddarm);
         if (count < 0) {
-                pr_err("cpufreq: Unable to check supported voltages\n");
+                pr_err("Unable to check supported voltages\n");
         }
 
         freq = s3c64xx_freq_table;
@@ -171,7 +173,7 @@ static void __init s3c64xx_cpufreq_config_regulator(void)
                 }
 
                 if (!found) {
-                        pr_debug("cpufreq: %dkHz unsupported by regulator\n",
+                        pr_debug("%dkHz unsupported by regulator\n",
                                  freq->frequency);
                         freq->frequency = CPUFREQ_ENTRY_INVALID;
                 }
@@ -194,13 +196,13 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
                 return -EINVAL;
 
         if (s3c64xx_freq_table == NULL) {
-                pr_err("cpufreq: No frequency information for this CPU\n");
+                pr_err("No frequency information for this CPU\n");
                 return -ENODEV;
         }
 
         armclk = clk_get(NULL, "armclk");
         if (IS_ERR(armclk)) {
-                pr_err("cpufreq: Unable to obtain ARMCLK: %ld\n",
+                pr_err("Unable to obtain ARMCLK: %ld\n",
                        PTR_ERR(armclk));
                 return PTR_ERR(armclk);
         }
@@ -209,12 +211,19 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
         vddarm = regulator_get(NULL, "vddarm");
         if (IS_ERR(vddarm)) {
                 ret = PTR_ERR(vddarm);
-                pr_err("cpufreq: Failed to obtain VDDARM: %d\n", ret);
-                pr_err("cpufreq: Only frequency scaling available\n");
+                pr_err("Failed to obtain VDDARM: %d\n", ret);
+                pr_err("Only frequency scaling available\n");
                 vddarm = NULL;
         } else {
                 s3c64xx_cpufreq_config_regulator();
         }
+
+        vddint = regulator_get(NULL, "vddint");
+        if (IS_ERR(vddint)) {
+                ret = PTR_ERR(vddint);
+                pr_err("Failed to obtain VDDINT: %d\n", ret);
+                vddint = NULL;
+        }
 #endif
 
         freq = s3c64xx_freq_table;
@@ -225,7 +234,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
                 r = clk_round_rate(armclk, freq->frequency * 1000);
                 r /= 1000;
                 if (r != freq->frequency) {
-                        pr_debug("cpufreq: %dkHz unsupported by clock\n",
+                        pr_debug("%dkHz unsupported by clock\n",
                                  freq->frequency);
                         freq->frequency = CPUFREQ_ENTRY_INVALID;
                 }
@@ -248,7 +257,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 
         ret = cpufreq_frequency_table_cpuinfo(policy, s3c64xx_freq_table);
         if (ret != 0) {
-                pr_err("cpufreq: Failed to configure frequency table: %d\n",
+                pr_err("Failed to configure frequency table: %d\n",
                        ret);
                 regulator_put(vddarm);
                 clk_put(armclk);