greybus: es2: remove obsolete cport-reset ARPC

Remove the now obsolete and redundant cport-reset ARPC, along with the
consequently unused cport_disable callback.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/arpc.h

@@ -76,17 +76,12 @@ struct arpc_response_message {
 
 
 /* ARPC requests */
-#define ARPC_TYPE_CPORT_RESET			0x00
 #define ARPC_TYPE_CPORT_CONNECTED		0x01
 #define ARPC_TYPE_CPORT_QUIESCE			0x02
 #define ARPC_TYPE_CPORT_CLEAR			0x03
 #define ARPC_TYPE_CPORT_FLUSH			0x04
 #define ARPC_TYPE_CPORT_SHUTDOWN		0x05
 
-struct arpc_cport_reset_req {
-	__le16 cport_id;
-} __packed;
-
 struct arpc_cport_connected_req {
 	__le16 cport_id;
 } __packed;

drivers/staging/greybus/es2.c

@@ -611,32 +611,6 @@ static void message_cancel(struct gb_message *message)
 	usb_free_urb(urb);
 }
 
-static int cport_reset(struct gb_host_device *hd, u16 cport_id)
-{
-	struct es2_ap_dev *es2 = hd_to_es2(hd);
-	struct usb_device *udev = es2->usb_dev;
-	struct arpc_cport_reset_req req;
-	int retval;
-	int result;
-
-	switch (cport_id) {
-	case GB_SVC_CPORT_ID:
-	case ES2_CPORT_CDSI0:
-	case ES2_CPORT_CDSI1:
-		return 0;
-	}
-
-	req.cport_id = cpu_to_le16(cport_id);
-	retval = arpc_sync(es2, ARPC_TYPE_CPORT_RESET, &req, sizeof(req),
-			   &result, ES2_ARPC_CPORT_TIMEOUT);
-	if (retval == -EREMOTEIO) {
-		dev_err(&udev->dev, "failed to reset cport %u: %d\n", cport_id,
-			result);
-	}
-
-	return retval;
-}
-
 static int es2_cport_allocate(struct gb_host_device *hd, int cport_id,
 				unsigned long flags)
 {
@@ -735,17 +709,6 @@ static int cport_enable(struct gb_host_device *hd, u16 cport_id,
 	return ret;
 }
 
-static int cport_disable(struct gb_host_device *hd, u16 cport_id)
-{
-	int retval;
-
-	retval = cport_reset(hd, cport_id);
-	if (retval)
-		return retval;
-
-	return 0;
-}
-
 static int es2_cport_connected(struct gb_host_device *hd, u16 cport_id)
 {
 	struct es2_ap_dev *es2 = hd_to_es2(hd);
@@ -1004,7 +967,6 @@ static struct gb_hd_driver es2_driver = {
 	.cport_allocate			= es2_cport_allocate,
 	.cport_release			= es2_cport_release,
 	.cport_enable			= cport_enable,
-	.cport_disable			= cport_disable,
 	.cport_connected		= es2_cport_connected,
 	.cport_flush			= es2_cport_flush,
 	.cport_shutdown			= es2_cport_shutdown,