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ACPI: Revert "ACPI / AC: convert ACPI ac driver to platform bus"
Revert commitcc8ef52707(ACPI / AC: convert ACPI ac driver to platform bus) that is reported to break thermal management on MacBook Air 2013 with ArchLinux. Fixes:cc8ef52707(ACPI / AC: convert ACPI ac driver to platform bus) References: https://bugzilla.kernel.org/show_bug.cgi?id=71711 Cc: Zhang Rui <rui.zhang@intel.com> Reported-and-tested-by: Manuel Krause <manuelkrause@netscape.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: 3.13+ <stable@vger.kernel.org> # 3.13+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Guenter Roeck
Rafael J. Wysocki
parent
89ca3b8819
commit
98012849e0
@ -52,11 +52,39 @@ MODULE_AUTHOR("Paul Diefenbaugh");
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MODULE_DESCRIPTION("ACPI AC Adapter Driver");
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MODULE_LICENSE("GPL");
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static int acpi_ac_add(struct acpi_device *device);
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static int acpi_ac_remove(struct acpi_device *device);
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static void acpi_ac_notify(struct acpi_device *device, u32 event);
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static const struct acpi_device_id ac_device_ids[] = {
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{"ACPI0003", 0},
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{"", 0},
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};
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MODULE_DEVICE_TABLE(acpi, ac_device_ids);
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#ifdef CONFIG_PM_SLEEP
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static int acpi_ac_resume(struct device *dev);
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#endif
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static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
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static int ac_sleep_before_get_state_ms;
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static struct acpi_driver acpi_ac_driver = {
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.name = "ac",
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.class = ACPI_AC_CLASS,
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.ids = ac_device_ids,
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.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
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.ops = {
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.add = acpi_ac_add,
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.remove = acpi_ac_remove,
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.notify = acpi_ac_notify,
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},
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.drv.pm = &acpi_ac_pm,
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};
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struct acpi_ac {
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struct power_supply charger;
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struct platform_device *pdev;
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struct acpi_device * device;
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unsigned long long state;
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struct notifier_block battery_nb;
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};
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@ -69,10 +97,12 @@ struct acpi_ac {
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static int acpi_ac_get_state(struct acpi_ac *ac)
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{
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acpi_status status;
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acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev);
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acpi_status status = AE_OK;
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status = acpi_evaluate_integer(handle, "_PSR", NULL,
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if (!ac)
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return -EINVAL;
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status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL,
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&ac->state);
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if (ACPI_FAILURE(status)) {
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ACPI_EXCEPTION((AE_INFO, status,
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@ -117,10 +147,9 @@ static enum power_supply_property ac_props[] = {
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Driver Model
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-------------------------------------------------------------------------- */
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static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
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static void acpi_ac_notify(struct acpi_device *device, u32 event)
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{
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struct acpi_ac *ac = data;
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struct acpi_device *adev;
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struct acpi_ac *ac = acpi_driver_data(device);
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if (!ac)
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return;
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@ -143,11 +172,10 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
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msleep(ac_sleep_before_get_state_ms);
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acpi_ac_get_state(ac);
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adev = ACPI_COMPANION(&ac->pdev->dev);
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acpi_bus_generate_netlink_event(adev->pnp.device_class,
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dev_name(&ac->pdev->dev),
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event, (u32) ac->state);
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acpi_notifier_call_chain(adev, event, (u32) ac->state);
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acpi_bus_generate_netlink_event(device->pnp.device_class,
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dev_name(&device->dev), event,
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(u32) ac->state);
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acpi_notifier_call_chain(device, event, (u32) ac->state);
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kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
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}
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@ -192,49 +220,39 @@ static struct dmi_system_id ac_dmi_table[] = {
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{},
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};
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static int acpi_ac_probe(struct platform_device *pdev)
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static int acpi_ac_add(struct acpi_device *device)
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{
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int result = 0;
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struct acpi_ac *ac = NULL;
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struct acpi_device *adev;
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if (!pdev)
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if (!device)
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return -EINVAL;
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adev = ACPI_COMPANION(&pdev->dev);
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if (!adev)
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return -ENODEV;
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ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL);
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if (!ac)
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return -ENOMEM;
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strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
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strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
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ac->pdev = pdev;
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platform_set_drvdata(pdev, ac);
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ac->device = device;
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strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME);
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strcpy(acpi_device_class(device), ACPI_AC_CLASS);
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device->driver_data = ac;
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result = acpi_ac_get_state(ac);
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if (result)
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goto end;
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ac->charger.name = acpi_device_bid(adev);
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ac->charger.name = acpi_device_bid(device);
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ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
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ac->charger.properties = ac_props;
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ac->charger.num_properties = ARRAY_SIZE(ac_props);
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ac->charger.get_property = get_ac_property;
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result = power_supply_register(&pdev->dev, &ac->charger);
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result = power_supply_register(&ac->device->dev, &ac->charger);
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if (result)
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goto end;
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result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev),
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ACPI_ALL_NOTIFY, acpi_ac_notify_handler, ac);
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if (result) {
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power_supply_unregister(&ac->charger);
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goto end;
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}
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printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
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acpi_device_name(adev), acpi_device_bid(adev),
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acpi_device_name(device), acpi_device_bid(device),
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ac->state ? "on-line" : "off-line");
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ac->battery_nb.notifier_call = acpi_ac_battery_notify;
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@ -256,7 +274,7 @@ static int acpi_ac_resume(struct device *dev)
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if (!dev)
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return -EINVAL;
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ac = platform_get_drvdata(to_platform_device(dev));
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ac = acpi_driver_data(to_acpi_device(dev));
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if (!ac)
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return -EINVAL;
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@ -270,19 +288,17 @@ static int acpi_ac_resume(struct device *dev)
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#else
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#define acpi_ac_resume NULL
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#endif
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static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume);
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static int acpi_ac_remove(struct platform_device *pdev)
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static int acpi_ac_remove(struct acpi_device *device)
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{
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struct acpi_ac *ac;
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struct acpi_ac *ac = NULL;
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if (!pdev)
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if (!device || !acpi_driver_data(device))
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return -EINVAL;
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acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev),
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ACPI_ALL_NOTIFY, acpi_ac_notify_handler);
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ac = acpi_driver_data(device);
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ac = platform_get_drvdata(pdev);
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if (ac->charger.dev)
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power_supply_unregister(&ac->charger);
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unregister_acpi_notifier(&ac->battery_nb);
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@ -292,23 +308,6 @@ static int acpi_ac_remove(struct platform_device *pdev)
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return 0;
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}
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static const struct acpi_device_id acpi_ac_match[] = {
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{ "ACPI0003", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(acpi, acpi_ac_match);
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static struct platform_driver acpi_ac_driver = {
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.probe = acpi_ac_probe,
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.remove = acpi_ac_remove,
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.driver = {
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.name = "acpi-ac",
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.owner = THIS_MODULE,
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.pm = &acpi_ac_pm_ops,
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.acpi_match_table = ACPI_PTR(acpi_ac_match),
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},
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};
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static int __init acpi_ac_init(void)
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{
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int result;
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@ -316,7 +315,7 @@ static int __init acpi_ac_init(void)
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if (acpi_disabled)
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return -ENODEV;
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result = platform_driver_register(&acpi_ac_driver);
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result = acpi_bus_register_driver(&acpi_ac_driver);
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if (result < 0)
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return -ENODEV;
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@ -325,7 +324,7 @@ static int __init acpi_ac_init(void)
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static void __exit acpi_ac_exit(void)
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{
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platform_driver_unregister(&acpi_ac_driver);
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acpi_bus_unregister_driver(&acpi_ac_driver);
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}
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module_init(acpi_ac_init);
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module_exit(acpi_ac_exit);
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@ -29,7 +29,6 @@ ACPI_MODULE_NAME("platform");
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static const struct acpi_device_id acpi_platform_device_ids[] = {
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{ "PNP0D40" },
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{ "ACPI0003" },
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{ "VPC2004" },
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{ "BCM4752" },
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