--- zzzz-none-000/linux-3.10.107/drivers/cpufreq/davinci-cpufreq.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/cpufreq/davinci-cpufreq.c	2021-02-04 17:41:59.000000000 +0000
@@ -50,9 +50,7 @@
 	if (policy->cpu)
 		return -EINVAL;
 
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
-
+	cpufreq_verify_within_cpu_limits(policy);
 	policy->min = clk_round_rate(armclk, policy->min * 1000) / 1000;
 	policy->max = clk_round_rate(armclk, policy->max * 1000) / 1000;
 	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
@@ -60,63 +58,38 @@
 	return 0;
 }
 
-static unsigned int davinci_getspeed(unsigned int cpu)
+static int davinci_target(struct cpufreq_policy *policy, unsigned int idx)
 {
-	if (cpu)
-		return 0;
-
-	return clk_get_rate(cpufreq.armclk) / 1000;
-}
-
-static int davinci_target(struct cpufreq_policy *policy,
-				unsigned int target_freq, unsigned int relation)
-{
-	int ret = 0;
-	unsigned int idx;
-	struct cpufreq_freqs freqs;
 	struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data;
 	struct clk *armclk = cpufreq.armclk;
+	unsigned int old_freq, new_freq;
+	int ret = 0;
 
-	freqs.old = davinci_getspeed(0);
-	freqs.new = clk_round_rate(armclk, target_freq * 1000) / 1000;
-
-	if (freqs.old == freqs.new)
-		return ret;
-
-	dev_dbg(cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new);
-
-	ret = cpufreq_frequency_table_target(policy, pdata->freq_table,
-						freqs.new, relation, &idx);
-	if (ret)
-		return -EINVAL;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+	old_freq = policy->cur;
+	new_freq = pdata->freq_table[idx].frequency;
 
 	/* if moving to higher frequency, up the voltage beforehand */
-	if (pdata->set_voltage && freqs.new > freqs.old) {
+	if (pdata->set_voltage && new_freq > old_freq) {
 		ret = pdata->set_voltage(idx);
 		if (ret)
-			goto out;
+			return ret;
 	}
 
 	ret = clk_set_rate(armclk, idx);
 	if (ret)
-		goto out;
+		return ret;
 
 	if (cpufreq.asyncclk) {
 		ret = clk_set_rate(cpufreq.asyncclk, cpufreq.asyncrate);
 		if (ret)
-			goto out;
+			return ret;
 	}
 
 	/* if moving to lower freq, lower the voltage after lowering freq */
-	if (pdata->set_voltage && freqs.new < freqs.old)
+	if (pdata->set_voltage && new_freq < old_freq)
 		pdata->set_voltage(idx);
 
-out:
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	return ret;
+	return 0;
 }
 
 static int davinci_cpu_init(struct cpufreq_policy *policy)
@@ -135,16 +108,7 @@
 			return result;
 	}
 
-	policy->cur = davinci_getspeed(0);
-
-	result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
-	if (result) {
-		pr_err("%s: cpufreq_frequency_table_cpuinfo() failed",
-				__func__);
-		return result;
-	}
-
-	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
+	policy->clk = cpufreq.armclk;
 
 	/*
 	 * Time measurement across the target() function yields ~1500-1800us
@@ -152,30 +116,17 @@
 	 * Setting the latency to 2000 us to accommodate addition of drivers
 	 * to pre/post change notification list.
 	 */
-	policy->cpuinfo.transition_latency = 2000 * 1000;
-	return 0;
+	return cpufreq_generic_init(policy, freq_table, 2000 * 1000);
 }
 
-static int davinci_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *davinci_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver davinci_driver = {
-	.flags		= CPUFREQ_STICKY,
+	.flags		= CPUFREQ_STICKY | CPUFREQ_NEED_INITIAL_FREQ_CHECK,
 	.verify		= davinci_verify_speed,
-	.target		= davinci_target,
-	.get		= davinci_getspeed,
+	.target_index	= davinci_target,
+	.get		= cpufreq_generic_get,
 	.init		= davinci_cpu_init,
-	.exit		= davinci_cpu_exit,
 	.name		= "davinci",
-	.attr		= davinci_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int __init davinci_cpufreq_probe(struct platform_device *pdev)
@@ -218,7 +169,6 @@
 static struct platform_driver davinci_cpufreq_driver = {
 	.driver = {
 		.name	 = "cpufreq-davinci",
-		.owner	 = THIS_MODULE,
 	},
 	.remove = __exit_p(davinci_cpufreq_remove),
 };