[PATCH v8 17/25] usb: gadget: atmel_usba_udc: set endpoint capabilities

[Anders Roxell <anders.roxell@linaro.org>]

usb_gadget_ep_match_desc() reads the caps field and compares the wanted
packet size against maxpacket_limit. atmel_usba_udc sets neither, it only
sets maxpacket, so no endpoint matches after the dwc3 resync re-imports
epautoconf.c. Same problem dwc2 had in commit c5c4cc4c6b98 ("usb: gadget:
dwc2: Set endpoint capabilities via .caps field").

Set the capabilities like the kernel driver does, and use
usb_ep_set_maxpacket_limit() for the fifo size, like commit 6f9c431a2062
("usb: gadget: dwc2: Use usb_ep_set_maxpacket_limit() for fifo sizes").

Compile tested only.

Suggested-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://lore.kernel.org/u-boot/87v7az6l03.fsf@kernel.org/
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 drivers/usb/gadget/atmel_usba_udc.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index 52900ad654cf..bcbfe5272d5f 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1188,7 +1188,7 @@ static struct usba_ep *usba_udc_pdata(struct usba_platform_data *pdata,
 		ep->fifo = udc->fifo + USBA_FIFO_BASE(i);
 		ep->ep.ops = &usba_ep_ops;
 		ep->ep.name = pdata->ep[i].name;
-		ep->ep.maxpacket = pdata->ep[i].fifo_size;
+		usb_ep_set_maxpacket_limit(&ep->ep, pdata->ep[i].fifo_size);
 		ep->fifo_size = ep->ep.maxpacket;
 		ep->udc = udc;
 		INIT_LIST_HEAD(&ep->queue);
@@ -1196,6 +1196,16 @@ static struct usba_ep *usba_udc_pdata(struct usba_platform_data *pdata,
 		ep->index = pdata->ep[i].index;
 		ep->can_dma = pdata->ep[i].can_dma;
 		ep->can_isoc = pdata->ep[i].can_isoc;
+
+		if (i == 0) {
+			ep->ep.caps.type_control = 1;
+		} else {
+			ep->ep.caps.type_iso = ep->can_isoc;
+			ep->ep.caps.type_bulk = 1;
+			ep->ep.caps.type_int = 1;
+		}
+		ep->ep.caps.dir_in = 1;
+		ep->ep.caps.dir_out = 1;
 		if (i)
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 	};
-- 
2.53.0