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path: root/drivers/acpi/ac.c
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Diffstat (limited to 'drivers/acpi/ac.c')
-rw-r--r--drivers/acpi/ac.c98
1 files changed, 41 insertions, 57 deletions
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 225dc6818751..2d4a35e6dd18 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -17,6 +17,7 @@
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
+#include <linux/string_choices.h>
#include <linux/acpi.h>
#include <acpi/battery.h>
@@ -32,8 +33,9 @@ MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION("ACPI AC Adapter Driver");
MODULE_LICENSE("GPL");
-static int acpi_ac_add(struct acpi_device *device);
-static void acpi_ac_remove(struct acpi_device *device);
+static int acpi_ac_probe(struct platform_device *pdev);
+static void acpi_ac_remove(struct platform_device *pdev);
+
static void acpi_ac_notify(acpi_handle handle, u32 event, void *data);
static const struct acpi_device_id ac_device_ids[] = {
@@ -50,17 +52,6 @@ static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
static int ac_sleep_before_get_state_ms;
static int ac_only;
-static struct acpi_driver acpi_ac_driver = {
- .name = "ac",
- .class = ACPI_AC_CLASS,
- .ids = ac_device_ids,
- .ops = {
- .add = acpi_ac_add,
- .remove = acpi_ac_remove,
- },
- .drv.pm = &acpi_ac_pm,
-};
-
struct acpi_ac {
struct power_supply *charger;
struct power_supply_desc charger_desc;
@@ -128,15 +119,12 @@ static enum power_supply_property ac_props[] = {
/* Driver Model */
static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_device *device = data;
- struct acpi_ac *ac = acpi_driver_data(device);
-
- if (!ac)
- return;
+ struct acpi_ac *ac = data;
+ struct acpi_device *adev = ac->device;
switch (event) {
default:
- acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n",
+ acpi_handle_debug(adev->handle, "Unsupported event [0x%x]\n",
event);
fallthrough;
case ACPI_AC_NOTIFY_STATUS:
@@ -153,10 +141,10 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
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,
+ acpi_bus_generate_netlink_event(adev->pnp.device_class,
+ dev_name(&adev->dev), event,
(u32) ac->state);
- acpi_notifier_call_chain(device, event, (u32) ac->state);
+ acpi_notifier_call_chain(adev, event, (u32) ac->state);
kobject_uevent(&ac->charger->dev.kobj, KOBJ_CHANGE);
}
}
@@ -213,24 +201,22 @@ static const struct dmi_system_id ac_dmi_table[] __initconst = {
{},
};
-static int acpi_ac_add(struct acpi_device *device)
+static int acpi_ac_probe(struct platform_device *pdev)
{
+ struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
struct power_supply_config psy_cfg = {};
- int result = 0;
- struct acpi_ac *ac = NULL;
-
-
- if (!device)
- return -EINVAL;
+ struct acpi_ac *ac;
+ int result;
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;
+ ac->device = adev;
+ strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
+ strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
+
+ platform_set_drvdata(pdev, ac);
result = acpi_ac_get_state(ac);
if (result)
@@ -238,26 +224,26 @@ static int acpi_ac_add(struct acpi_device *device)
psy_cfg.drv_data = ac;
- ac->charger_desc.name = acpi_device_bid(device);
+ ac->charger_desc.name = acpi_device_bid(adev);
ac->charger_desc.type = POWER_SUPPLY_TYPE_MAINS;
ac->charger_desc.properties = ac_props;
ac->charger_desc.num_properties = ARRAY_SIZE(ac_props);
ac->charger_desc.get_property = get_ac_property;
- ac->charger = power_supply_register(&ac->device->dev,
+ ac->charger = power_supply_register(&pdev->dev,
&ac->charger_desc, &psy_cfg);
if (IS_ERR(ac->charger)) {
result = PTR_ERR(ac->charger);
goto err_release_ac;
}
- pr_info("%s [%s] (%s)\n", acpi_device_name(device),
- acpi_device_bid(device), ac->state ? "on-line" : "off-line");
+ pr_info("%s [%s] (%s-line)\n", acpi_device_name(adev),
+ acpi_device_bid(adev), str_on_off(ac->state));
ac->battery_nb.notifier_call = acpi_ac_battery_notify;
register_acpi_notifier(&ac->battery_nb);
- result = acpi_dev_install_notify_handler(device, ACPI_ALL_NOTIFY,
- acpi_ac_notify);
+ result = acpi_dev_install_notify_handler(adev, ACPI_ALL_NOTIFY,
+ acpi_ac_notify, ac);
if (result)
goto err_unregister;
@@ -275,16 +261,9 @@ err_release_ac:
#ifdef CONFIG_PM_SLEEP
static int acpi_ac_resume(struct device *dev)
{
- struct acpi_ac *ac;
+ struct acpi_ac *ac = dev_get_drvdata(dev);
unsigned int old_state;
- if (!dev)
- return -EINVAL;
-
- ac = acpi_driver_data(to_acpi_device(dev));
- if (!ac)
- return -EINVAL;
-
old_state = ac->state;
if (acpi_ac_get_state(ac))
return 0;
@@ -297,16 +276,11 @@ static int acpi_ac_resume(struct device *dev)
#define acpi_ac_resume NULL
#endif
-static void acpi_ac_remove(struct acpi_device *device)
+static void acpi_ac_remove(struct platform_device *pdev)
{
- struct acpi_ac *ac = NULL;
+ struct acpi_ac *ac = platform_get_drvdata(pdev);
- if (!device || !acpi_driver_data(device))
- return;
-
- ac = acpi_driver_data(device);
-
- acpi_dev_remove_notify_handler(device, ACPI_ALL_NOTIFY,
+ acpi_dev_remove_notify_handler(ac->device, ACPI_ALL_NOTIFY,
acpi_ac_notify);
power_supply_unregister(ac->charger);
unregister_acpi_notifier(&ac->battery_nb);
@@ -314,6 +288,16 @@ static void acpi_ac_remove(struct acpi_device *device)
kfree(ac);
}
+static struct platform_driver acpi_ac_driver = {
+ .probe = acpi_ac_probe,
+ .remove_new = acpi_ac_remove,
+ .driver = {
+ .name = "ac",
+ .acpi_match_table = ac_device_ids,
+ .pm = &acpi_ac_pm,
+ },
+};
+
static int __init acpi_ac_init(void)
{
int result;
@@ -326,7 +310,7 @@ static int __init acpi_ac_init(void)
dmi_check_system(ac_dmi_table);
- result = acpi_bus_register_driver(&acpi_ac_driver);
+ result = platform_driver_register(&acpi_ac_driver);
if (result < 0)
return -ENODEV;
@@ -335,7 +319,7 @@ 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);
}
module_init(acpi_ac_init);
module_exit(acpi_ac_exit);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 18:27:11 +0300