From 2456963c0b736f4111f9c4517ae12f63d332c312 Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Fri, 9 May 2014 16:43:11 +0900 Subject: PM / devfreq: exynos5: Use devm_devfreq_* function using device resource management This patch uses devm_devfreq_add_device()/devm_devfreq_register_opp_notifier() to control automatically the resource of devfreq. Signed-off-by: Chanwoo Choi Cc: Kukjin Kim Cc: Sachin Kamat Cc: Bartlomiej Zolnierkiewicz Cc: Manish Badarkhe Cc: Abhilash Kesavan Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Signed-off-by: MyungJoo Ham --- drivers/devfreq/exynos/exynos5_bus.c | 29 ++++++++--------------------- 1 file changed, 8 insertions(+), 21 deletions(-) (limited to 'drivers/devfreq') diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c index ab54a69..6cd0392 100644 --- a/drivers/devfreq/exynos/exynos5_bus.c +++ b/drivers/devfreq/exynos/exynos5_bus.c @@ -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; } -- cgit v1.1