Thread (89 messages) 89 messages, 8 authors, 2017-01-20

Re: [PATCH v10 08/14] usb: otg: add OTG/dual-role core

From: Peter Chen <hidden>
Date: 2016-06-12 11:27:15
Also in: linux-devicetree, lkml

On Fri, Jun 10, 2016 at 04:07:17PM +0300, Roger Quadros wrote:
quoted hunk ↗ jump to hunk
index dca7856..03f7204 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -59,5 +59,6 @@ obj-$(CONFIG_USB_RENESAS_USBHS)	+= renesas_usbhs/
 obj-$(CONFIG_USB_GADGET)	+= gadget/
 
 obj-$(CONFIG_USB_COMMON)	+= common/
+obj-$(CONFIG_USB_OTG_CORE)	+= common/
I don't think you need to make above change, why you do it?
+
+/**
+ * usb_otg_get_data() - get usb_otg data structa
%s/structa/structure
+
+/**
+ * usb_otg_kick_fsm() - Kick the OTG state machine
+ * @otg_dev:	OTG controller device
+ *
+ * Used by USB host/gadget stack to sync OTG related
+ * events to the OTG state machine.
+ * e.g. change in host_bus->b_hnp_enable, gadget->b_hnp_enable
+ *
+ * Return: 0 on success, error value otherwise.
+ */
+int usb_otg_kick_fsm(struct device *otg_dev)
+{
+	struct usb_otg *otg;
+
+	mutex_lock(&otg_list_mutex);
+	otg = usb_otg_get_data(otg_dev);
+	mutex_unlock(&otg_list_mutex);
+	if (!otg) {
+		dev_dbg(otg_dev, "otg: %s: invalid otg device\n",
+			__func__);
+		return -ENODEV;
+	}
+
+	usb_otg_sync_inputs(otg);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(usb_otg_kick_fsm);
Do you have any users for this API? If no, please delete it in this
version.
+
+/**
+ * usb_otg_register_hcd() - Register the host controller to OTG core
+ * @hcd:	host controller
+ * @irqnum:	interrupt number
+ * @irqflags:	interrupt flags
+ * @ops:	HCD ops to interface with the HCD
+ *
+ * This is used by the USB Host stack to register the host controller
+ * to the OTG core. Host controller must not be started by the
+ * caller as it is left upto the OTG state machine to do so.
%s/upto/up to
+
+/**
+ * usb_otg_register_gadget() - Register the gadget controller to OTG core
+ * @gadget:	gadget controller instance
+ * @ops:	gadget interface ops
+ *
+ * This is used by the USB gadget stack to register the gadget controller
+ * to the OTG core. Gadget controller must not be started by the
+ * caller as it is left upto the OTG state machine to do so.
+ *
%s/upto/up to

-- 

Best Regards,
Peter Chen
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help