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PM / devfreq: exynos5: Use devm_devfreq_* function using device resource management

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This patch uses devm_devfreq_add_device()/devm_devfreq_register_opp_notifier()
to control automatically the resource of devfreq.

Signed-off-by: Chanwoo Choi <[email protected]>
Cc: Kukjin Kim <[email protected]>
Cc: Sachin Kamat <[email protected]>
Cc: Bartlomiej Zolnierkiewicz <[email protected]>
Cc: Manish Badarkhe <[email protected]>
Cc: Abhilash Kesavan <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: MyungJoo Ham <[email protected]>
This commit is contained in:
Chanwoo Choi 2014-05-09 16:43:11 +09:00 • committed by MyungJoo Ham
commit 2456963c0b
1 changed files with 8 additions and 21 deletions
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29
drivers/devfreq/exynos/exynos5_bus.c
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@ -163,21 +163,12 @@ static int exynos5_int_get_dev_status(struct device *dev,
return 0;
}
static void exynos5_int_exit(struct device *dev)
{
struct platform_device *pdev = container_of(dev, struct platform_device,
dev);
struct busfreq_data_int *data = platform_get_drvdata(pdev);
devfreq_unregister_opp_notifier(dev, data->devfreq);
}
static struct devfreq_dev_profile exynos5_devfreq_int_profile = {
.initial_freq = 160000,
.polling_ms = 100,
.target = exynos5_busfreq_int_target,
.get_dev_status = exynos5_int_get_dev_status,
.exit = exynos5_int_exit,
};
static int exynos5250_init_int_tables(struct busfreq_data_int *data)
@ -343,30 +334,27 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
busfreq_mon_reset(ppmu_data);
data->devfreq = devfreq_add_device(dev, &exynos5_devfreq_int_profile,
data->devfreq = devm_devfreq_add_device(dev, &exynos5_devfreq_int_profile,
"simple_ondemand", NULL);
if (IS_ERR(data->devfreq))
return PTR_ERR(data->devfreq);
if (IS_ERR(data->devfreq)) {
err = PTR_ERR(data->devfreq);
goto err_devfreq_add;
err = devm_devfreq_register_opp_notifier(dev, data->devfreq);
if (err < 0) {
dev_err(dev, "Failed to register opp notifier\n");
return err;
}
devfreq_register_opp_notifier(dev, data->devfreq);
err = register_pm_notifier(&data->pm_notifier);
if (err) {
dev_err(dev, "Failed to setup pm notifier\n");
goto err_devfreq_add;
return err;
}
/* TODO: Add a new QOS class for int/mif bus */
pm_qos_add_request(&data->int_req, PM_QOS_NETWORK_THROUGHPUT, -1);
return 0;
err_devfreq_add:
devfreq_remove_device(data->devfreq);
return err;
}
static int exynos5_busfreq_int_remove(struct platform_device *pdev)
@ -375,7 +363,6 @@ static int exynos5_busfreq_int_remove(struct platform_device *pdev)
pm_qos_remove_request(&data->int_req);
unregister_pm_notifier(&data->pm_notifier);
devfreq_remove_device(data->devfreq);
return 0;
}