On 6/8/2016 3:06 PM, Roger Quadros wrote:
Introduce usb_otg_add/remove_hcd() for use by host
controllers that are part of OTG/dual-role port.
Non Device tree platforms can use the otg_dev argument
to specify the OTG controller device. If otg_dev is NULL
then the device tree node's otg-controller property is used to
get the otg_dev device.
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
Acked-by: Peter Chen <peter.chen@xxxxxxx>
---
drivers/usb/core/hcd.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/usb/hcd.h | 4 ++++
2 files changed, 59 insertions(+)
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index ae6c76d..c6f4155 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
[...]
@@ -3025,6 +3030,56 @@ void usb_remove_hcd(struct usb_hcd *hcd)
}
EXPORT_SYMBOL_GPL(usb_remove_hcd);
+static struct otg_hcd_ops otg_hcd_intf = {
+ .add = usb_add_hcd,
+ .remove = usb_remove_hcd,
+ .usb_bus_start_enum = usb_bus_start_enum,
+ .usb_control_msg = usb_control_msg,
+ .usb_hub_find_child = usb_hub_find_child,
+};
+
+/**
+ * usb_otg_add_hcd - Register the HCD with OTG core.
+ * @hcd: the usb_hcd structure to initialize
+ * @irqnum: Interrupt line to allocate
+ * @irqflags: Interrupt type flags
+ * @otg_dev: OTG controller device managing this HCD
Device managing a driver? That's interesting. :-)
Well it is the OTG controller instance really.
How else do you want me to write it?
Just HC again? Or maybe HCI (HC interface)?
cheers,
-roger
MBR, Sergei
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