usb: gadget: Introduce handle_interrupts ops to USB_GADGET_GENERIC uclass
Introduce .ops for USB_GADGET_GENERIC uclass. The first new ops is
.handle_interrupts which must be implemented by DM capable USB gadget
controller drivers and must implement interrupt handling similar to
dm_usb_gadget_handle_interrupts(). This patch currently provides weak
dm_usb_gadget_handle_interrupts() implementation which is overridden by
the drivers, but this will be removed once conversion to handle_interrupts
callback is complete.
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> # vim3
Link: https://lore.kernel.org/r/20240614005309.34433-2-marek.vasut+renesas@mailbox.org
[mkorpershoek: fixed trivial typo in commit message]
Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 36572be..cf21616 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -971,6 +971,14 @@
extern int dm_usb_gadget_handle_interrupts(struct udevice *);
/**
+ * struct usb_gadget_generic_ops - The functions that a gadget driver must implement.
+ * @handle_interrupts: Handle UDC interrupts.
+ */
+struct usb_gadget_generic_ops {
+ int (*handle_interrupts)(struct udevice *udevice);
+};
+
+/**
* udc_device_get_by_index() - Get UDC udevice by index
* @index: UDC device index
* @udev: UDC udevice matching the index (if found)