1 files changed, 16 insertions, 69 deletions

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 0fac34439e31..7b6dc06b1bd4 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -25,18 +25,11 @@
 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);
 
-static int exynos_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      exynos_info->freq_table);
-}
-
 static unsigned int exynos_getspeed(unsigned int cpu)
 {
 	return clk_get_rate(exynos_info->cpu_clk) / 1000;
@@ -65,21 +58,18 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 	struct cpufreq_policy *policy = cpufreq_cpu_get(0);
 	unsigned int arm_volt, safe_arm_volt = 0;
 	unsigned int mpll_freq_khz = exynos_info->mpll_freq_khz;
+	unsigned int old_freq;
 	int index, old_index;
 	int ret = 0;
 
-	freqs.old = policy->cur;
-	freqs.new = target_freq;
-
-	if (freqs.new == freqs.old)
-		goto out;
+	old_freq = policy->cur;
 
 	/*
 	 * The policy max have been changed so that we cannot get proper
 	 * old_index with cpufreq_frequency_table_target(). Thus, ignore
 	 * policy and get the index from the raw freqeuncy table.
 	 */
-	old_index = exynos_cpufreq_get_index(freqs.old);
+	old_index = exynos_cpufreq_get_index(old_freq);
 	if (old_index < 0) {
 		ret = old_index;
 		goto out;
@@ -104,17 +94,14 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 	}
 	arm_volt = volt_table[index];
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	/* When the new frequency is higher than current frequency */
-	if ((freqs.new > freqs.old) && !safe_arm_volt) {
+	if ((target_freq > old_freq) && !safe_arm_volt) {
 		/* Firstly, voltage up to increase frequency */
 		ret = regulator_set_voltage(arm_regulator, arm_volt, arm_volt);
 		if (ret) {
 			pr_err("%s: failed to set cpu voltage to %d\n",
 				__func__, arm_volt);
-			freqs.new = freqs.old;
-			goto post_notify;
+			return ret;
 		}
 	}
 
@@ -124,24 +111,17 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 		if (ret) {
 			pr_err("%s: failed to set cpu voltage to %d\n",
 				__func__, safe_arm_volt);
-			freqs.new = freqs.old;
-			goto post_notify;
+			return ret;
 		}
 	}
 
 	exynos_info->set_freq(old_index, index);
 
-post_notify:
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	if (ret)
-		goto out;
-
 	/* When the new frequency is lower than current frequency */
-	if ((freqs.new < freqs.old) ||
-	   ((freqs.new > freqs.old) && safe_arm_volt)) {
+	if ((target_freq < old_freq) ||
+	   ((target_freq > old_freq) && safe_arm_volt)) {
 		/* down the voltage after frequency change */
-		regulator_set_voltage(arm_regulator, arm_volt,
+		ret = regulator_set_voltage(arm_regulator, arm_volt,
 				arm_volt);
 		if (ret) {
 			pr_err("%s: failed to set cpu voltage to %d\n",
@@ -151,19 +131,14 @@ post_notify:
 	}
 
 out:
-
 	cpufreq_cpu_put(policy);
 
 	return ret;
 }
 
-static int exynos_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
+static int exynos_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct cpufreq_frequency_table *freq_table = exynos_info->freq_table;
-	unsigned int index;
-	unsigned int new_freq;
 	int ret = 0;
 
 	mutex_lock(&cpufreq_lock);
@@ -171,15 +146,7 @@ static int exynos_target(struct cpufreq_policy *policy,
 	if (frequency_locked)
 		goto out;
 
-	if (cpufreq_frequency_table_target(policy, freq_table,
-					   target_freq, relation, &index)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	new_freq = freq_table[index].frequency;
-
-	ret = exynos_cpufreq_scale(new_freq);
+	ret = exynos_cpufreq_scale(freq_table[index].frequency);
 
 out:
 	mutex_unlock(&cpufreq_lock);
@@ -247,38 +214,18 @@ static struct notifier_block exynos_cpufreq_nb = {
 
 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;
-
-	cpumask_setall(policy->cpus);
-
-	return cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table);
-}
-
-static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
+	return cpufreq_generic_init(policy, exynos_info->freq_table, 100000);
 }
 
-static struct freq_attr *exynos_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver exynos_driver = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= exynos_verify_speed,
-	.target		= exynos_target,
+	.verify		= cpufreq_generic_frequency_table_verify,
+	.target_index	= exynos_target,
 	.get		= exynos_getspeed,
 	.init		= exynos_cpufreq_cpu_init,
-	.exit		= exynos_cpufreq_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.name		= "exynos_cpufreq",
-	.attr		= exynos_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 #ifdef CONFIG_PM
 	.suspend	= exynos_cpufreq_suspend,
 	.resume		= exynos_cpufreq_resume,