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2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c 
 kernel/drivers/usb/phy/phy.c
....@@ -34,6 +34,14 @@
3434 	struct notifier_block *nb;
3535 };
3636 
37
+static const char *const usb_chger_type[] = {
38
+	[UNKNOWN_TYPE]			= "USB_CHARGER_UNKNOWN_TYPE",
39
+	[SDP_TYPE]			= "USB_CHARGER_SDP_TYPE",
40
+	[CDP_TYPE]			= "USB_CHARGER_CDP_TYPE",
41
+	[DCP_TYPE]			= "USB_CHARGER_DCP_TYPE",
42
+	[ACA_TYPE]			= "USB_CHARGER_ACA_TYPE",
43
+};
44
+
3745 static struct usb_phy *__usb_find_phy(struct list_head *list,
3846 	enum usb_phy_type type)
3947 {
....@@ -80,7 +88,7 @@
8088 
8189 /**
8290  * usb_phy_notify_charger_work - notify the USB charger state
83
- * @work - the charger work to notify the USB charger state
91
+ * @work: the charger work to notify the USB charger state
8492  *
8593  * This work can be issued when USB charger state has been changed or
8694  * USB charger current has been changed, then we can notify the current
....@@ -98,7 +106,8 @@
98106 {
99107 	struct usb_phy *usb_phy = container_of(work, struct usb_phy, chg_work);
100108 	char uchger_state[50] = { 0 };
101
-	char *envp[] = { uchger_state, NULL };
109
+	char uchger_type[50] = { 0 };
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+	char *envp[] = { uchger_state, uchger_type, NULL };
102111 	unsigned int min, max;
103112 
104113 	switch (usb_phy->chg_state) {
....@@ -122,6 +131,8 @@
122131 		return;
123132 	}
124133 
134
+	snprintf(uchger_type, ARRAY_SIZE(uchger_type),
135
+		 "USB_CHARGER_TYPE=%s", usb_chger_type[usb_phy->chg_type]);
125136 	kobject_uevent_env(&usb_phy->dev->kobj, KOBJ_CHANGE, envp);
126137 }
127138 
....@@ -149,9 +160,9 @@
149160 
150161 /**
151162  * usb_phy_get_charger_type - get charger type from extcon subsystem
152
- * @nb -the notifier block to determine charger type
153
- * @state - the cable state
154
- * @data - private data
163
+ * @nb: the notifier block to determine charger type
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+ * @state: the cable state
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+ * @data: private data
155166  *
156167  * Determin the charger type from extcon subsystem which also means the
157168  * charger state has been chaned, then we should notify this event.
....@@ -167,8 +178,8 @@
167178 
168179 /**
169180  * usb_phy_set_charger_current - set the USB charger current
170
- * @usb_phy - the USB phy to be used
171
- * @mA - the current need to be set
181
+ * @usb_phy: the USB phy to be used
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+ * @mA: the current need to be set
172183  *
173184  * Usually we only change the charger default current when USB finished the
174185  * enumeration as one SDP charger. As one SDP charger, usb_phy_set_power()
....@@ -220,9 +231,9 @@
220231 
221232 /**
222233  * usb_phy_get_charger_current - get the USB charger current
223
- * @usb_phy - the USB phy to be used
224
- * @min - the minimum current
225
- * @max - the maximum current
234
+ * @usb_phy: the USB phy to be used
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+ * @min: the minimum current
236
+ * @max: the maximum current
226237  *
227238  * Usually we will notify the maximum current to power user, but for some
228239  * special case, power user also need the minimum current value. Then the
....@@ -258,8 +269,8 @@
258269 
259270 /**
260271  * usb_phy_set_charger_state - set the USB charger state
261
- * @usb_phy - the USB phy to be used
262
- * @state - the new state need to be set for charger
272
+ * @usb_phy: the USB phy to be used
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+ * @state: the new state need to be set for charger
263274  *
264275  * The usb phy driver can issue this function when the usb phy driver
265276  * detected the charger state has been changed, in this case the charger
....@@ -403,8 +414,8 @@
403414 
404415 /**
405416  * devm_usb_get_phy - find the USB PHY
406
- * @dev - device that requests this phy
407
- * @type - the type of the phy the controller requires
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+ * @dev: device that requests this phy
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+ * @type: the type of the phy the controller requires
408419  *
409420  * Gets the phy using usb_get_phy(), and associates a device with it using
410421  * devres. On driver detach, release function is invoked on the devres data,
....@@ -433,7 +444,7 @@
433444 
434445 /**
435446  * usb_get_phy - find the USB PHY
436
- * @type - the type of the phy the controller requires
447
+ * @type: the type of the phy the controller requires
437448  *
438449  * Returns the phy driver, after getting a refcount to it; or
439450  * -ENODEV if there is no such phy.  The caller is responsible for
....@@ -469,9 +480,9 @@
469480 
470481 /**
471482  * devm_usb_get_phy_by_node - find the USB PHY by device_node
472
- * @dev - device that requests this phy
473
- * @node - the device_node for the phy device.
474
- * @nb - a notifier_block to register with the phy.
483
+ * @dev: device that requests this phy
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+ * @node: the device_node for the phy device.
485
+ * @nb: a notifier_block to register with the phy.
475486  *
476487  * Returns the phy driver associated with the given device_node,
477488  * after getting a refcount to it, -ENODEV if there is no such phy or
....@@ -529,9 +540,9 @@
529540 
530541 /**
531542  * devm_usb_get_phy_by_phandle - find the USB PHY by phandle
532
- * @dev - device that requests this phy
533
- * @phandle - name of the property holding the phy phandle value
534
- * @index - the index of the phy
543
+ * @dev: device that requests this phy
544
+ * @phandle: name of the property holding the phy phandle value
545
+ * @index: the index of the phy
535546  *
536547  * Returns the phy driver associated with the given phandle value,
537548  * after getting a refcount to it, -ENODEV if there is no such phy or
....@@ -567,8 +578,8 @@
567578 
568579 /**
569580  * devm_usb_put_phy - release the USB PHY
570
- * @dev - device that wants to release this phy
571
- * @phy - the phy returned by devm_usb_get_phy()
581
+ * @dev: device that wants to release this phy
582
+ * @phy: the phy returned by devm_usb_get_phy()
572583  *
573584  * destroys the devres associated with this phy and invokes usb_put_phy
574585  * to release the phy.
....@@ -604,9 +615,9 @@
604615 EXPORT_SYMBOL_GPL(usb_put_phy);
605616 
606617 /**
607
- * usb_add_phy - declare the USB PHY
618
+ * usb_add_phy: declare the USB PHY
608619  * @x: the USB phy to be used; or NULL
609
- * @type - the type of this PHY
620
+ * @type: the type of this PHY
610621  *
611622  * This call is exclusively for use by phy drivers, which
612623  * coordinate the activities of drivers for host and peripheral
....@@ -703,6 +714,7 @@
703714 /**
704715  * usb_phy_set_event - set event to phy event
705716  * @x: the phy returned by usb_get_phy();
717
+ * @event: event to set
706718  *
707719  * This sets event to phy event
708720  */