static int omap_cpufreq_remove(struct platform_device *pdev)
{
return cpufreq_unregister_driver(&omap_driver);
}
static int ls1x_cpufreq_probe(struct platform_device *pdev)
{
struct plat_ls1x_cpufreq *pdata = dev_get_platdata(&pdev->dev);
struct clk *clk;
int ret;
if (!pdata || !pdata->clk_name || !pdata->osc_clk_name) {
dev_err(&pdev->dev, "platform data missing\n");
return -EINVAL;
}
cpufreq =
devm_kzalloc(&pdev->dev, sizeof(struct ls1x_cpufreq), GFP_KERNEL);
if (!cpufreq)
return -ENOMEM;
cpufreq->dev = &pdev->dev;
clk = devm_clk_get(&pdev->dev, pdata->clk_name);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get %s clock\n",
pdata->clk_name);
return PTR_ERR(clk);
}
cpufreq->clk = clk;
clk = clk_get_parent(clk);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get parent of %s clock\n",
__clk_get_name(cpufreq->clk));
return PTR_ERR(clk);
}
cpufreq->mux_clk = clk;
clk = clk_get_parent(clk);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get parent of %s clock\n",
__clk_get_name(cpufreq->mux_clk));
return PTR_ERR(clk);
}
cpufreq->pll_clk = clk;
clk = devm_clk_get(&pdev->dev, pdata->osc_clk_name);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "unable to get %s clock\n",
pdata->osc_clk_name);
return PTR_ERR(clk);
}
cpufreq->osc_clk = clk;
cpufreq->max_freq = pdata->max_freq;
cpufreq->min_freq = pdata->min_freq;
ret = cpufreq_register_driver(&ls1x_cpufreq_driver);
if (ret) {
dev_err(&pdev->dev,
"failed to register CPUFreq driver: %d\n", ret);
return ret;
}
ret = cpufreq_register_notifier(&ls1x_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
if (ret) {
dev_err(&pdev->dev,
"failed to register CPUFreq notifier: %d\n",ret);
cpufreq_unregister_driver(&ls1x_cpufreq_driver);
}
return ret;
}
static int dt_cpufreq_remove(struct platform_device *pdev)
{
cpufreq_unregister_driver(&dt_cpufreq_driver);
return 0;
}
/**
* longrun_exit - unregisters LongRun support
*/
static void __exit longrun_exit(void)
{
cpufreq_unregister_driver(&longrun_driver);
}
/*
=============
Module exit
=============
*/
static void __exit bcm2835_cpufreq_module_exit(void)
{
print_debug("IN\n");
cpufreq_unregister_driver(&bcm2835_cpufreq_driver);
return;
}
/**
* speedstep_exit - unregisters SpeedStep support
*
* Unregisters SpeedStep support.
*/
static void __exit speedstep_exit(void)
{
cpufreq_unregister_driver(&speedstep_driver);
}
static void __exit sc520_freq_exit(void)
{
cpufreq_unregister_driver(&sc520_freq_driver);
iounmap(cpuctl);
}
static void __exit tegra_cpufreq_exit(void)
{
cpufreq_unregister_driver(&tegra_cpufreq_driver);
clk_put(emc_clk);
clk_put(cpu_clk);
}
