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Commit 37d1ca50 authored by ChandanaKishori Chiluveru's avatar ChandanaKishori Chiluveru
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USB: f_mtp: Increase the IN endpoint buffer allocation 



Some UDC may require allocation of some extra bytes for
TX buffer due to hardware requirement. Add necessary
changes for the same.

Change-Id: I7ebe4cfb1c1d6f4e6ab2914db5e7256003b4b638
Signed-off-by: default avatarSujeet Kumar <ksujeet@codeaurora.org>
Signed-off-by: default avatarChandanaKishori Chiluveru <cchilu@codeaurora.org>
parent 4753a250

drivers/usb/gadget/function/f_mtp.c

+5 −2
Original line number Diff line number Diff line
@@ -515,6 +515,7 @@ static int mtp_create_bulk_endpoints(struct mtp_dev *dev, 
	struct usb_composite_dev *cdev = dev->cdev;

	struct usb_request *req;

	struct usb_ep *ep;

	size_t extra_buf_alloc = cdev->gadget->extra_buf_alloc;

	int i;



	DBG(cdev, "create_bulk_endpoints dev: %p\n", dev);
@@ -552,7 +553,8 @@ retry_tx_alloc: 


	/* now allocate requests for our endpoints */

	for (i = 0; i < mtp_tx_reqs; i++) {

		req = mtp_request_new(dev->ep_in, mtp_tx_req_len);

		req = mtp_request_new(dev->ep_in,

				mtp_tx_req_len + extra_buf_alloc);

		if (!req) {

			if (mtp_tx_req_len <= MTP_BULK_BUFFER_SIZE)

				goto fail;
@@ -590,7 +592,8 @@ retry_rx_alloc: 
		dev->rx_req[i] = req;

	}

	for (i = 0; i < INTR_REQ_MAX; i++) {

		req = mtp_request_new(dev->ep_intr, INTR_BUFFER_SIZE);

		req = mtp_request_new(dev->ep_intr,

				INTR_BUFFER_SIZE + extra_buf_alloc);

		if (!req)

			goto fail;

		req->complete = mtp_complete_intr;