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Commit 38bb2ca6 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Merge branch 'chipidea-stable' into usb-linus 



Chipidea patches for 3.6

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parents ba9edaa4 db89960e

drivers/usb/chipidea/udc.c

+41 −18
Original line number Diff line number Diff line
@@ -78,8 +78,7 @@ static inline int ep_to_bit(struct ci13xxx *ci, int n) 
}



/**

 * hw_device_state: enables/disables interrupts & starts/stops device (execute

 *                  without interruption)

 * hw_device_state: enables/disables interrupts (execute without interruption)

 * @dma: 0 => disable, !0 => enable and set dma engine

 *

 * This function returns an error code
@@ -91,9 +90,7 @@ static int hw_device_state(struct ci13xxx *ci, u32 dma) 
		/* interrupt, error, port change, reset, sleep/suspend */

		hw_write(ci, OP_USBINTR, ~0,

			     USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI);

		hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);

	} else {

		hw_write(ci, OP_USBCMD, USBCMD_RS, 0);

		hw_write(ci, OP_USBINTR, ~0, 0);

	}

	return 0;
@@ -774,10 +771,7 @@ __acquires(mEp->lock) 
{

	struct ci13xxx_req *mReq, *mReqTemp;

	struct ci13xxx_ep *mEpTemp = mEp;

	int uninitialized_var(retval);



	if (list_empty(&mEp->qh.queue))

		return -EINVAL;

	int retval = 0;



	list_for_each_entry_safe(mReq, mReqTemp, &mEp->qh.queue,

			queue) {
@@ -1420,6 +1414,21 @@ static int ci13xxx_vbus_draw(struct usb_gadget *_gadget, unsigned mA) 
	return -ENOTSUPP;

}



/* Change Data+ pullup status

 * this func is used by usb_gadget_connect/disconnet

 */

static int ci13xxx_pullup(struct usb_gadget *_gadget, int is_on)

{

	struct ci13xxx *ci = container_of(_gadget, struct ci13xxx, gadget);



	if (is_on)

		hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS);

	else

		hw_write(ci, OP_USBCMD, USBCMD_RS, 0);



	return 0;

}



static int ci13xxx_start(struct usb_gadget *gadget,

			 struct usb_gadget_driver *driver);

static int ci13xxx_stop(struct usb_gadget *gadget,
@@ -1432,6 +1441,7 @@ static int ci13xxx_stop(struct usb_gadget *gadget, 
static const struct usb_gadget_ops usb_gadget_ops = {

	.vbus_session	= ci13xxx_vbus_session,

	.wakeup		= ci13xxx_wakeup,

	.pullup		= ci13xxx_pullup,

	.vbus_draw	= ci13xxx_vbus_draw,

	.udc_start	= ci13xxx_start,

	.udc_stop	= ci13xxx_stop,
@@ -1455,7 +1465,12 @@ static int init_eps(struct ci13xxx *ci) 


			mEp->ep.name      = mEp->name;

			mEp->ep.ops       = &usb_ep_ops;

			mEp->ep.maxpacket = CTRL_PAYLOAD_MAX;

			/*

			 * for ep0: maxP defined in desc, for other

			 * eps, maxP is set by epautoconfig() called

			 * by gadget layer

			 */

			mEp->ep.maxpacket = (unsigned short)~0;



			INIT_LIST_HEAD(&mEp->qh.queue);

			mEp->qh.ptr = dma_pool_alloc(ci->qh_pool, GFP_KERNEL,
@@ -1475,6 +1490,7 @@ static int init_eps(struct ci13xxx *ci) 
				else

					ci->ep0in = mEp;



				mEp->ep.maxpacket = CTRL_PAYLOAD_MAX;

				continue;

			}
@@ -1484,6 +1500,17 @@ static int init_eps(struct ci13xxx *ci) 
	return retval;

}



static void destroy_eps(struct ci13xxx *ci)

{

	int i;



	for (i = 0; i < ci->hw_ep_max; i++) {

		struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];



		dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma);

	}

}



/**

 * ci13xxx_start: register a gadget driver

 * @gadget: our gadget
@@ -1691,7 +1718,7 @@ static int udc_start(struct ci13xxx *ci) 
	if (ci->platdata->flags & CI13XXX_REQUIRE_TRANSCEIVER) {

		if (ci->transceiver == NULL) {

			retval = -ENODEV;

			goto free_pools;

			goto destroy_eps;

		}

	}
@@ -1729,7 +1756,7 @@ static int udc_start(struct ci13xxx *ci) 


remove_trans:

	if (!IS_ERR_OR_NULL(ci->transceiver)) {

		otg_set_peripheral(ci->transceiver->otg, &ci->gadget);

		otg_set_peripheral(ci->transceiver->otg, NULL);

		if (ci->global_phy)

			usb_put_phy(ci->transceiver);

	}
@@ -1742,6 +1769,8 @@ unreg_device: 
put_transceiver:

	if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy)

		usb_put_phy(ci->transceiver);

destroy_eps:

	destroy_eps(ci);

free_pools:

	dma_pool_destroy(ci->td_pool);

free_qh_pool:
@@ -1756,18 +1785,12 @@ free_qh_pool: 
 */

static void udc_stop(struct ci13xxx *ci)

{

	int i;



	if (ci == NULL)

		return;



	usb_del_gadget_udc(&ci->gadget);



	for (i = 0; i < ci->hw_ep_max; i++) {

		struct ci13xxx_ep *mEp = &ci->ci13xxx_ep[i];



		dma_pool_free(ci->qh_pool, mEp->qh.ptr, mEp->qh.dma);

	}

	destroy_eps(ci);



	dma_pool_destroy(ci->td_pool);

	dma_pool_destroy(ci->qh_pool);