From e54def4ad8144ab15f826416e2e0f290ef1901b4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 19 Jun 2024 23:00:30 +0200 Subject: Adding upstream version 6.9.2. Signed-off-by: Daniel Baumann --- drivers/power/supply/power_supply_core.c | 65 +++++++++++++++----------------- 1 file changed, 31 insertions(+), 34 deletions(-) (limited to 'drivers/power/supply/power_supply_core.c') diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index ecef35ac3b..fefe938c93 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -25,13 +25,17 @@ #include "power_supply.h" #include "samsung-sdi-battery.h" -/* exported for the APM Power driver, APM emulation */ -struct class *power_supply_class; -EXPORT_SYMBOL_GPL(power_supply_class); +static const struct class power_supply_class = { + .name = "power_supply", + .dev_uevent = power_supply_uevent, +}; static BLOCKING_NOTIFIER_HEAD(power_supply_notifier); -static struct device_type power_supply_dev_type; +static const struct device_type power_supply_dev_type = { + .name = "power_supply", + .groups = power_supply_attr_groups, +}; #define POWER_SUPPLY_DEFERRED_REGISTER_TIME msecs_to_jiffies(10) @@ -93,8 +97,7 @@ static void power_supply_changed_work(struct work_struct *work) if (likely(psy->changed)) { psy->changed = false; spin_unlock_irqrestore(&psy->changed_lock, flags); - class_for_each_device(power_supply_class, NULL, psy, - __power_supply_changed_work); + power_supply_for_each_device(psy, __power_supply_changed_work); power_supply_update_leds(psy); blocking_notifier_call_chain(&power_supply_notifier, PSY_EVENT_PROP_CHANGED, psy); @@ -112,6 +115,12 @@ static void power_supply_changed_work(struct work_struct *work) spin_unlock_irqrestore(&psy->changed_lock, flags); } +int power_supply_for_each_device(void *data, int (*fn)(struct device *dev, void *data)) +{ + return class_for_each_device(&power_supply_class, NULL, data, fn); +} +EXPORT_SYMBOL_GPL(power_supply_for_each_device); + void power_supply_changed(struct power_supply *psy) { unsigned long flags; @@ -187,8 +196,7 @@ static int power_supply_populate_supplied_from(struct power_supply *psy) { int error; - error = class_for_each_device(power_supply_class, NULL, psy, - __power_supply_populate_supplied_from); + error = power_supply_for_each_device(psy, __power_supply_populate_supplied_from); dev_dbg(&psy->dev, "%s %d\n", __func__, error); @@ -201,7 +209,7 @@ static int __power_supply_find_supply_from_node(struct device *dev, struct device_node *np = data; struct power_supply *epsy = dev_get_drvdata(dev); - /* returning non-zero breaks out of class_for_each_device loop */ + /* returning non-zero breaks out of power_supply_for_each_device loop */ if (epsy->of_node == np) return 1; @@ -213,17 +221,16 @@ static int power_supply_find_supply_from_node(struct device_node *supply_node) int error; /* - * class_for_each_device() either returns its own errors or values + * power_supply_for_each_device() either returns its own errors or values * returned by __power_supply_find_supply_from_node(). * * __power_supply_find_supply_from_node() will return 0 (no match) * or 1 (match). * - * We return 0 if class_for_each_device() returned 1, -EPROBE_DEFER if + * We return 0 if power_supply_for_each_device() returned 1, -EPROBE_DEFER if * it returned 0, or error as returned by it. */ - error = class_for_each_device(power_supply_class, NULL, supply_node, - __power_supply_find_supply_from_node); + error = power_supply_for_each_device(supply_node, __power_supply_find_supply_from_node); return error ? (error == 1 ? 0 : error) : -EPROBE_DEFER; } @@ -329,8 +336,7 @@ int power_supply_am_i_supplied(struct power_supply *psy) struct psy_am_i_supplied_data data = { psy, 0 }; int error; - error = class_for_each_device(power_supply_class, NULL, &data, - __power_supply_am_i_supplied); + error = power_supply_for_each_device(&data, __power_supply_am_i_supplied); dev_dbg(&psy->dev, "%s count %u err %d\n", __func__, data.count, error); @@ -365,8 +371,7 @@ int power_supply_is_system_supplied(void) int error; unsigned int count = 0; - error = class_for_each_device(power_supply_class, NULL, &count, - __power_supply_is_system_supplied); + error = power_supply_for_each_device(&count, __power_supply_is_system_supplied); /* * If no system scope power class device was found at all, most probably we @@ -412,8 +417,7 @@ int power_supply_get_property_from_supplier(struct power_supply *psy, * This function is not intended for use with a supply with multiple * suppliers, we simply pick the first supply to report the psp. */ - ret = class_for_each_device(power_supply_class, NULL, &data, - __power_supply_get_supplier_property); + ret = power_supply_for_each_device(&data, __power_supply_get_supplier_property); if (ret < 0) return ret; if (ret == 0) @@ -458,8 +462,8 @@ static int power_supply_match_device_by_name(struct device *dev, const void *dat struct power_supply *power_supply_get_by_name(const char *name) { struct power_supply *psy = NULL; - struct device *dev = class_find_device(power_supply_class, NULL, name, - power_supply_match_device_by_name); + struct device *dev = class_find_device(&power_supply_class, NULL, name, + power_supply_match_device_by_name); if (dev) { psy = dev_get_drvdata(dev); @@ -515,8 +519,8 @@ struct power_supply *power_supply_get_by_phandle(struct device_node *np, if (!power_supply_np) return ERR_PTR(-ENODEV); - dev = class_find_device(power_supply_class, NULL, power_supply_np, - power_supply_match_device_node); + dev = class_find_device(&power_supply_class, NULL, power_supply_np, + power_supply_match_device_node); of_node_put(power_supply_np); @@ -1369,7 +1373,7 @@ __power_supply_register(struct device *parent, device_initialize(dev); - dev->class = power_supply_class; + dev->class = &power_supply_class; dev->type = &power_supply_dev_type; dev->parent = parent; dev->release = power_supply_dev_release; @@ -1617,20 +1621,13 @@ EXPORT_SYMBOL_GPL(power_supply_get_drvdata); static int __init power_supply_class_init(void) { - power_supply_class = class_create("power_supply"); - - if (IS_ERR(power_supply_class)) - return PTR_ERR(power_supply_class); - - power_supply_class->dev_uevent = power_supply_uevent; - power_supply_init_attrs(&power_supply_dev_type); - - return 0; + power_supply_init_attrs(); + return class_register(&power_supply_class); } static void __exit power_supply_class_exit(void) { - class_destroy(power_supply_class); + class_unregister(&power_supply_class); } subsys_initcall(power_supply_class_init); -- cgit v1.2.3