@@ -34,6 +34,8 @@
struct davinci_cpufreq {
struct device *dev;
struct clk *armclk;
+ struct clk *asyncclk;
+ unsigned long asyncrate;
};
static struct davinci_cpufreq cpufreq;
@@ -114,6 +116,12 @@ static int davinci_target(struct cpufreq_policy *policy,
if (ret)
goto out;
+ if (cpufreq.asyncclk) {
+ ret = clk_set_rate(cpufreq.asyncclk, cpufreq.asyncrate);
+ if (ret)
+ goto out;
+ }
+
/* if moving to lower freq, lower the voltage after lowering freq */
if (pdata->set_voltage && freqs.new < freqs.old)
pdata->set_voltage(idx);
@@ -191,6 +199,7 @@ static struct cpufreq_driver davinci_driver = {
static int __init davinci_cpufreq_probe(struct platform_device *pdev)
{
struct davinci_cpufreq_config *pdata = pdev->dev.platform_data;
+ struct clk *asyncclk;
if (!pdata)
return -EINVAL;
@@ -205,6 +214,12 @@ static int __init davinci_cpufreq_probe(struct platform_device *pdev)
return PTR_ERR(cpufreq.armclk);
}
+ asyncclk = clk_get(cpufreq.dev, "async");
+ if (!IS_ERR(asyncclk)) {
+ cpufreq.asyncclk = asyncclk;
+ cpufreq.asyncrate = clk_get_rate(asyncclk);
+ }
+
return cpufreq_register_driver(&davinci_driver);
}
@@ -212,6 +227,9 @@ static int __exit davinci_cpufreq_remove(struct platform_device *pdev)
{
clk_put(cpufreq.armclk);
+ if (cpufreq.asyncclk)
+ clk_put(cpufreq.asyncclk);
+
return cpufreq_unregister_driver(&davinci_driver);
}