diff options
Diffstat (limited to 'drivers/usb/phy')
| -rw-r--r-- | drivers/usb/phy/phy.c | 55 |
1 files changed, 47 insertions, 8 deletions
diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c index b47285f023cf..83ed5089475a 100644 --- a/drivers/usb/phy/phy.c +++ b/drivers/usb/phy/phy.c @@ -42,6 +42,12 @@ static const char *const usb_chger_type[] = { [ACA_TYPE] = "USB_CHARGER_ACA_TYPE", }; +static const char *const usb_chger_state[] = { + [USB_CHARGER_DEFAULT] = "USB_CHARGER_DEFAULT", + [USB_CHARGER_PRESENT] = "USB_CHARGER_PRESENT", + [USB_CHARGER_ABSENT] = "USB_CHARGER_ABSENT", +}; + static struct usb_phy *__usb_find_phy(struct list_head *list, enum usb_phy_type type) { @@ -74,6 +80,18 @@ static struct usb_phy *__of_usb_find_phy(struct device_node *node) return ERR_PTR(-EPROBE_DEFER); } +static struct usb_phy *__device_to_usb_phy(struct device *dev) +{ + struct usb_phy *usb_phy; + + list_for_each_entry(usb_phy, &phy_list, head) { + if (usb_phy->dev == dev) + break; + } + + return usb_phy; +} + static void usb_phy_set_default_current(struct usb_phy *usb_phy) { usb_phy->chg_cur.sdp_min = DEFAULT_SDP_CUR_MIN; @@ -105,9 +123,6 @@ static void usb_phy_set_default_current(struct usb_phy *usb_phy) static void usb_phy_notify_charger_work(struct work_struct *work) { struct usb_phy *usb_phy = container_of(work, struct usb_phy, chg_work); - char uchger_state[50] = { 0 }; - char uchger_type[50] = { 0 }; - char *envp[] = { uchger_state, uchger_type, NULL }; unsigned int min, max; switch (usb_phy->chg_state) { @@ -115,15 +130,11 @@ static void usb_phy_notify_charger_work(struct work_struct *work) usb_phy_get_charger_current(usb_phy, &min, &max); atomic_notifier_call_chain(&usb_phy->notifier, max, usb_phy); - snprintf(uchger_state, ARRAY_SIZE(uchger_state), - "USB_CHARGER_STATE=%s", "USB_CHARGER_PRESENT"); break; case USB_CHARGER_ABSENT: usb_phy_set_default_current(usb_phy); atomic_notifier_call_chain(&usb_phy->notifier, 0, usb_phy); - snprintf(uchger_state, ARRAY_SIZE(uchger_state), - "USB_CHARGER_STATE=%s", "USB_CHARGER_ABSENT"); break; default: dev_warn(usb_phy->dev, "Unknown USB charger state: %d\n", @@ -131,9 +142,30 @@ static void usb_phy_notify_charger_work(struct work_struct *work) return; } + kobject_uevent(&usb_phy->dev->kobj, KOBJ_CHANGE); +} + +static int usb_phy_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct usb_phy *usb_phy; + char uchger_state[50] = { 0 }; + char uchger_type[50] = { 0 }; + + usb_phy = __device_to_usb_phy(dev); + + snprintf(uchger_state, ARRAY_SIZE(uchger_state), + "USB_CHARGER_STATE=%s", usb_chger_state[usb_phy->chg_state]); + snprintf(uchger_type, ARRAY_SIZE(uchger_type), "USB_CHARGER_TYPE=%s", usb_chger_type[usb_phy->chg_type]); - kobject_uevent_env(&usb_phy->dev->kobj, KOBJ_CHANGE, envp); + + if (add_uevent_var(env, uchger_state)) + return -ENOMEM; + + if (add_uevent_var(env, uchger_type)) + return -ENOMEM; + + return 0; } static void __usb_phy_get_charger_type(struct usb_phy *usb_phy) @@ -661,6 +693,11 @@ out: } EXPORT_SYMBOL_GPL(usb_add_phy); +static struct device_type usb_phy_dev_type = { + .name = "usb_phy", + .uevent = usb_phy_uevent, +}; + /** * usb_add_phy_dev - declare the USB PHY * @x: the USB phy to be used; or NULL @@ -684,6 +721,8 @@ int usb_add_phy_dev(struct usb_phy *x) if (ret) return ret; + x->dev->type = &usb_phy_dev_type; + ATOMIC_INIT_NOTIFIER_HEAD(&x->notifier); spin_lock_irqsave(&phy_lock, flags); |