From cc8ef52707341e67a12067d6ead991d56ea017ca Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 25 Sep 2013 20:39:45 +0800 Subject: ACPI / AC: convert ACPI ac driver to platform bus Signed-off-by: Zhang Rui Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ac.c | 163 +++++++++++++++++++++---------------------- drivers/acpi/acpi_platform.c | 1 + 2 files changed, 81 insertions(+), 83 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index f37beaa3..324b5a0 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -34,6 +34,7 @@ #include #include #endif +#include #include #include #include @@ -61,39 +62,12 @@ extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); static int acpi_ac_open_fs(struct inode *inode, struct file *file); #endif -static int acpi_ac_add(struct acpi_device *device); -static int acpi_ac_remove(struct acpi_device *device); -static void acpi_ac_notify(struct acpi_device *device, u32 event); - -static const struct acpi_device_id ac_device_ids[] = { - {"ACPI0003", 0}, - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, ac_device_ids); - -#ifdef CONFIG_PM_SLEEP -static int acpi_ac_resume(struct device *dev); -#endif -static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume); - static int ac_sleep_before_get_state_ms; -static struct acpi_driver acpi_ac_driver = { - .name = "ac", - .class = ACPI_AC_CLASS, - .ids = ac_device_ids, - .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, - .ops = { - .add = acpi_ac_add, - .remove = acpi_ac_remove, - .notify = acpi_ac_notify, - }, - .drv.pm = &acpi_ac_pm, -}; - struct acpi_ac { struct power_supply charger; - struct acpi_device * device; + struct acpi_device *adev; + struct platform_device *pdev; unsigned long long state; }; @@ -115,15 +89,13 @@ static const struct file_operations acpi_ac_fops = { static int acpi_ac_get_state(struct acpi_ac *ac) { - acpi_status status = AE_OK; - + acpi_status status; - if (!ac) - return -EINVAL; - - status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state); + status = acpi_evaluate_integer(ac->adev->handle, "_PSR", NULL, + &ac->state); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state")); + ACPI_EXCEPTION((AE_INFO, status, + "Error reading AC Adapter state")); ac->state = ACPI_AC_STATUS_UNKNOWN; return -ENODEV; } @@ -201,36 +173,36 @@ static int acpi_ac_open_fs(struct inode *inode, struct file *file) return single_open(file, acpi_ac_seq_show, PDE_DATA(inode)); } -static int acpi_ac_add_fs(struct acpi_device *device) +static int acpi_ac_add_fs(struct acpi_ac *ac) { struct proc_dir_entry *entry = NULL; printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded," " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); - if (!acpi_device_dir(device)) { - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_ac_dir); - if (!acpi_device_dir(device)) + if (!acpi_device_dir(ac->adev)) { + acpi_device_dir(ac->adev) = + proc_mkdir(acpi_device_bid(ac->adev), acpi_ac_dir); + if (!acpi_device_dir(ac->adev)) return -ENODEV; } /* 'state' [R] */ entry = proc_create_data(ACPI_AC_FILE_STATE, - S_IRUGO, acpi_device_dir(device), - &acpi_ac_fops, acpi_driver_data(device)); + S_IRUGO, acpi_device_dir(ac->adev), + &acpi_ac_fops, ac); if (!entry) return -ENODEV; return 0; } -static int acpi_ac_remove_fs(struct acpi_device *device) +static int acpi_ac_remove_fs(struct acpi_ac *ac) { - if (acpi_device_dir(device)) { - remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device)); - - remove_proc_entry(acpi_device_bid(device), acpi_ac_dir); - acpi_device_dir(device) = NULL; + if (acpi_device_dir(ac->adev)) { + remove_proc_entry(ACPI_AC_FILE_STATE, + acpi_device_dir(ac->adev)); + remove_proc_entry(acpi_device_bid(ac->adev), acpi_ac_dir); + acpi_device_dir(ac->adev) = NULL; } return 0; @@ -241,10 +213,9 @@ static int acpi_ac_remove_fs(struct acpi_device *device) Driver Model -------------------------------------------------------------------------- */ -static void acpi_ac_notify(struct acpi_device *device, u32 event) +static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) { - struct acpi_ac *ac = acpi_driver_data(device); - + struct acpi_ac *ac = data; if (!ac) return; @@ -267,10 +238,10 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event) msleep(ac_sleep_before_get_state_ms); acpi_ac_get_state(ac); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, - (u32) ac->state); - acpi_notifier_call_chain(device, event, (u32) ac->state); + acpi_bus_generate_netlink_event(ac->adev->pnp.device_class, + dev_name(&ac->pdev->dev), + event, (u32) ac->state); + acpi_notifier_call_chain(ac->adev, event, (u32) ac->state); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); } @@ -295,50 +266,61 @@ static struct dmi_system_id ac_dmi_table[] = { {}, }; -static int acpi_ac_add(struct acpi_device *device) +static int acpi_ac_probe(struct platform_device *pdev) { int result = 0; struct acpi_ac *ac = NULL; + struct acpi_device *adev; - - if (!device) + if (!pdev) return -EINVAL; + result = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev); + if (result) + return -ENODEV; + ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL); if (!ac) return -ENOMEM; - ac->device = device; - strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME); - strcpy(acpi_device_class(device), ACPI_AC_CLASS); - device->driver_data = ac; + strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME); + strcpy(acpi_device_class(adev), ACPI_AC_CLASS); + ac->adev = adev; + ac->pdev = pdev; + platform_set_drvdata(pdev, ac); result = acpi_ac_get_state(ac); if (result) goto end; #ifdef CONFIG_ACPI_PROCFS_POWER - result = acpi_ac_add_fs(device); -#endif + result = acpi_ac_add_fs(ac); if (result) goto end; - ac->charger.name = acpi_device_bid(device); +#endif + ac->charger.name = acpi_device_bid(adev); ac->charger.type = POWER_SUPPLY_TYPE_MAINS; ac->charger.properties = ac_props; ac->charger.num_properties = ARRAY_SIZE(ac_props); ac->charger.get_property = get_ac_property; - result = power_supply_register(&ac->device->dev, &ac->charger); + result = power_supply_register(&pdev->dev, &ac->charger); if (result) goto end; + result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev), + ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler, ac); + if (result) { + power_supply_unregister(&ac->charger); + goto end; + } printk(KERN_INFO PREFIX "%s [%s] (%s)\n", - acpi_device_name(device), acpi_device_bid(device), + acpi_device_name(adev), acpi_device_bid(adev), ac->state ? "on-line" : "off-line"); end: if (result) { #ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_remove_fs(device); + acpi_ac_remove_fs(ac); #endif kfree(ac); } @@ -356,7 +338,7 @@ static int acpi_ac_resume(struct device *dev) if (!dev) return -EINVAL; - ac = acpi_driver_data(to_acpi_device(dev)); + ac = platform_get_drvdata(to_platform_device(dev)); if (!ac) return -EINVAL; @@ -368,21 +350,24 @@ static int acpi_ac_resume(struct device *dev) return 0; } #endif +static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume); -static int acpi_ac_remove(struct acpi_device *device) +static int acpi_ac_remove(struct platform_device *pdev) { - struct acpi_ac *ac = NULL; - + struct acpi_ac *ac; - if (!device || !acpi_driver_data(device)) + if (!pdev) return -EINVAL; - ac = acpi_driver_data(device); + acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev), + ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler); + ac = platform_get_drvdata(pdev); if (ac->charger.dev) power_supply_unregister(&ac->charger); + #ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_remove_fs(device); + acpi_ac_remove_fs(ac); #endif kfree(ac); @@ -390,6 +375,23 @@ static int acpi_ac_remove(struct acpi_device *device) return 0; } +static const struct acpi_device_id acpi_ac_match[] = { + { "ACPI0003", 0 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, acpi_ac_match); + +static struct platform_driver acpi_ac_driver = { + .probe = acpi_ac_probe, + .remove = acpi_ac_remove, + .driver = { + .name = "acpi-ac", + .owner = THIS_MODULE, + .pm = &acpi_ac_pm_ops, + .acpi_match_table = ACPI_PTR(acpi_ac_match), + }, +}; + static int __init acpi_ac_init(void) { int result; @@ -403,7 +405,7 @@ static int __init acpi_ac_init(void) return -ENODEV; #endif - result = acpi_bus_register_driver(&acpi_ac_driver); + result = platform_driver_register(&acpi_ac_driver); if (result < 0) { #ifdef CONFIG_ACPI_PROCFS_POWER acpi_unlock_ac_dir(acpi_ac_dir); @@ -416,15 +418,10 @@ static int __init acpi_ac_init(void) static void __exit acpi_ac_exit(void) { - - acpi_bus_unregister_driver(&acpi_ac_driver); - + platform_driver_unregister(&acpi_ac_driver); #ifdef CONFIG_ACPI_PROCFS_POWER acpi_unlock_ac_dir(acpi_ac_dir); #endif - - return; } - module_init(acpi_ac_init); module_exit(acpi_ac_exit); diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index 1bde127..6259bc2 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -29,6 +29,7 @@ ACPI_MODULE_NAME("platform"); static const struct acpi_device_id acpi_platform_device_ids[] = { { "PNP0D40" }, + { "ACPI0003" }, { } }; -- cgit v1.1 From b5c37b798f2d29b9b2926e0abf008a13ce6c91fe Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 25 Sep 2013 20:39:50 +0800 Subject: ideapad_laptop: convert ideapad device/driver to platform bus This patch does two things, 1. enumerate the ideapad device node to platform bus. 2. convert the current driver from ACPI bus to platform bus. Note, with this patch, the platform device node created by ACPI, with the name VPC2004:00, is used as the parent device of the input, backlight, rfkill sysfs class device. Plus the ideapad_platform private sysfs attributes, i.e. camera_power and fan_mode, are also moved to the new platform device node. The previous platform device node "ideapad" is removed. Signed-off-by: Zhang Rui CC: Matthew Garrett CC: Ike Panhc Signed-off-by: Rafael J. Wysocki --- drivers/acpi/acpi_platform.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index 6259bc2..c20b02b 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -30,7 +30,7 @@ static const struct acpi_device_id acpi_platform_device_ids[] = { { "PNP0D40" }, { "ACPI0003" }, - + { "VPC2004" }, { } }; -- cgit v1.1 From ab0fd674d6cef0904baa511f22613ef6474f8169 Mon Sep 17 00:00:00 2001 From: Lan Tianyu Date: Sat, 12 Oct 2013 21:04:48 +0800 Subject: ACPI / AC: Remove AC's proc directory. AC's proc directory is not used and so remove it. Prepare for removing /proc/acpi directory. Signed-off-by: Lan Tianyu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/ac.c | 129 ++---------------------------------------------------- 1 file changed, 3 insertions(+), 126 deletions(-) (limited to 'drivers/acpi') diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 324b5a0..b9f0d5f 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -30,10 +30,6 @@ #include #include #include -#ifdef CONFIG_ACPI_PROCFS_POWER -#include -#include -#endif #include #include #include @@ -56,12 +52,6 @@ MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION("ACPI AC Adapter Driver"); MODULE_LICENSE("GPL"); -#ifdef CONFIG_ACPI_PROCFS_POWER -extern struct proc_dir_entry *acpi_lock_ac_dir(void); -extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); -static int acpi_ac_open_fs(struct inode *inode, struct file *file); -#endif - static int ac_sleep_before_get_state_ms; struct acpi_ac { @@ -73,16 +63,6 @@ struct acpi_ac { #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger) -#ifdef CONFIG_ACPI_PROCFS_POWER -static const struct file_operations acpi_ac_fops = { - .owner = THIS_MODULE, - .open = acpi_ac_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -#endif - /* -------------------------------------------------------------------------- AC Adapter Management -------------------------------------------------------------------------- */ @@ -132,83 +112,6 @@ static enum power_supply_property ac_props[] = { POWER_SUPPLY_PROP_ONLINE, }; -#ifdef CONFIG_ACPI_PROCFS_POWER -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ - -static struct proc_dir_entry *acpi_ac_dir; - -static int acpi_ac_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_ac *ac = seq->private; - - - if (!ac) - return 0; - - if (acpi_ac_get_state(ac)) { - seq_puts(seq, "ERROR: Unable to read AC Adapter state\n"); - return 0; - } - - seq_puts(seq, "state: "); - switch (ac->state) { - case ACPI_AC_STATUS_OFFLINE: - seq_puts(seq, "off-line\n"); - break; - case ACPI_AC_STATUS_ONLINE: - seq_puts(seq, "on-line\n"); - break; - default: - seq_puts(seq, "unknown\n"); - break; - } - - return 0; -} - -static int acpi_ac_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_ac_seq_show, PDE_DATA(inode)); -} - -static int acpi_ac_add_fs(struct acpi_ac *ac) -{ - struct proc_dir_entry *entry = NULL; - - printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded," - " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); - if (!acpi_device_dir(ac->adev)) { - acpi_device_dir(ac->adev) = - proc_mkdir(acpi_device_bid(ac->adev), acpi_ac_dir); - if (!acpi_device_dir(ac->adev)) - return -ENODEV; - } - - /* 'state' [R] */ - entry = proc_create_data(ACPI_AC_FILE_STATE, - S_IRUGO, acpi_device_dir(ac->adev), - &acpi_ac_fops, ac); - if (!entry) - return -ENODEV; - return 0; -} - -static int acpi_ac_remove_fs(struct acpi_ac *ac) -{ - - if (acpi_device_dir(ac->adev)) { - remove_proc_entry(ACPI_AC_FILE_STATE, - acpi_device_dir(ac->adev)); - remove_proc_entry(acpi_device_bid(ac->adev), acpi_ac_dir); - acpi_device_dir(ac->adev) = NULL; - } - - return 0; -} -#endif - /* -------------------------------------------------------------------------- Driver Model -------------------------------------------------------------------------- */ @@ -293,11 +196,6 @@ static int acpi_ac_probe(struct platform_device *pdev) if (result) goto end; -#ifdef CONFIG_ACPI_PROCFS_POWER - result = acpi_ac_add_fs(ac); - if (result) - goto end; -#endif ac->charger.name = acpi_device_bid(adev); ac->charger.type = POWER_SUPPLY_TYPE_MAINS; ac->charger.properties = ac_props; @@ -317,13 +215,9 @@ static int acpi_ac_probe(struct platform_device *pdev) acpi_device_name(adev), acpi_device_bid(adev), ac->state ? "on-line" : "off-line"); - end: - if (result) { -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_remove_fs(ac); -#endif +end: + if (result) kfree(ac); - } dmi_check_system(ac_dmi_table); return result; @@ -366,10 +260,6 @@ static int acpi_ac_remove(struct platform_device *pdev) if (ac->charger.dev) power_supply_unregister(&ac->charger); -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_remove_fs(ac); -#endif - kfree(ac); return 0; @@ -399,19 +289,9 @@ static int __init acpi_ac_init(void) if (acpi_disabled) return -ENODEV; -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_dir = acpi_lock_ac_dir(); - if (!acpi_ac_dir) - return -ENODEV; -#endif - result = platform_driver_register(&acpi_ac_driver); - if (result < 0) { -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_unlock_ac_dir(acpi_ac_dir); -#endif + if (result < 0) return -ENODEV; - } return 0; } @@ -419,9 +299,6 @@ static int __init acpi_ac_init(void) static void __exit acpi_ac_exit(void) { platform_driver_unregister(&acpi_ac_driver); -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_unlock_ac_dir(acpi_ac_dir); -#endif } module_init(acpi_ac_init); module_exit(acpi_ac_exit); -- cgit v1.1