usb: cdns3: gadget: Fix a bunch of kernel doc issues

Mainline misspelled function argument descriptions.  Also one
formatting issue with a missing '@' identifier.

Fixes the following W=1 build warnings:

 drivers/usb/cdns3/gadget.c:653: warning: Function parameter or member 'priv_ep' not described in 'cdns3_wa2_descmissing_packet'
 drivers/usb/cdns3/gadget.c:653: warning: Excess function parameter 'priv_dev' description in 'cdns3_wa2_descmissing_packet'
 drivers/usb/cdns3/gadget.c:1088: warning: Function parameter or member 'request' not described in 'cdns3_ep_run_transfer'
 drivers/usb/cdns3/gadget.c:2574: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_set_halt'
 drivers/usb/cdns3/gadget.c:2574: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_set_halt'
 drivers/usb/cdns3/gadget.c:2595: warning: Function parameter or member 'priv_ep' not described in '__cdns3_gadget_ep_clear_halt'
 drivers/usb/cdns3/gadget.c:2595: warning: Excess function parameter 'ep' description in '__cdns3_gadget_ep_clear_halt'
 drivers/usb/cdns3/gadget.c:2898: warning: Function parameter or member 'priv_dev' not described in 'cdns3_init_eps'
 drivers/usb/cdns3/gadget.c:2898: warning: Excess function parameter 'cdns3' description in 'cdns3_init_eps'
 drivers/usb/cdns3/gadget.c:3210: warning: Function parameter or member 'cdns' not described in 'cdns3_gadget_init'

Cc: Pawel Laszczak <pawell@cadence.com>
Cc: Pawel Jez <pjez@cadence.com>
Cc: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200702144625.2533530-18-lee.jones@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/cdns3/gadget.c

@@ -644,7 +644,7 @@ static void cdns3_wa2_remove_old_request(struct cdns3_endpoint *priv_ep)
 
 /**
  * cdns3_wa2_descmissing_packet - handles descriptor missing event.
- * @priv_dev: extended gadget object
+ * @priv_ep: extended gadget object
  *
  * This function is used only for WA2. For more information see Work around 2
  * description.
@@ -1080,6 +1080,7 @@ static int cdns3_ep_run_stream_transfer(struct cdns3_endpoint *priv_ep,
 /**
  * cdns3_ep_run_transfer - start transfer on no-default endpoint hardware
  * @priv_ep: endpoint object
+ * @request: request object
  *
  * Returns zero on success or negative value on failure
  */
@@ -2568,7 +2569,7 @@ int cdns3_gadget_ep_dequeue(struct usb_ep *ep,
 /**
  * __cdns3_gadget_ep_set_halt Sets stall on selected endpoint
  * Should be called after acquiring spin_lock and selecting ep
- * @ep: endpoint object to set stall on.
+ * @priv_ep: endpoint object to set stall on.
  */
 void __cdns3_gadget_ep_set_halt(struct cdns3_endpoint *priv_ep)
 {
@@ -2589,7 +2590,7 @@ void __cdns3_gadget_ep_set_halt(struct cdns3_endpoint *priv_ep)
 /**
  * __cdns3_gadget_ep_clear_halt Clears stall on selected endpoint
  * Should be called after acquiring spin_lock and selecting ep
- * @ep: endpoint object to clear stall on
+ * @priv_ep: endpoint object to clear stall on
  */
 int __cdns3_gadget_ep_clear_halt(struct cdns3_endpoint *priv_ep)
 {
@@ -2890,7 +2891,7 @@ static void cdns3_free_all_eps(struct cdns3_device *priv_dev)
 
 /**
  * cdns3_init_eps Initializes software endpoints of gadget
- * @cdns3: extended gadget object
+ * @priv_dev: extended gadget object
  *
  * Returns 0 on success, error code elsewhere
  */
@@ -3202,7 +3203,7 @@ static int cdns3_gadget_resume(struct cdns3 *cdns, bool hibernated)
 /**
  * cdns3_gadget_init - initialize device structure
  *
- * cdns: cdns3 instance
+ * @cdns: cdns3 instance
  *
  * This function initializes the gadget.
  */