Merge tag 'usb-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.10 merge window

One big merge this time with a total of 166 non-merge commits.

Most of the work, by far, is on dwc2 this time (68.2%) with dwc3 a far
second (22.5%). The remaining 9.3% are scattered on gadget drivers.

The most important changes for dwc2 are the peripheral side DMA support
implemented by Synopsys folks and support for the new IOT dwc2
compatible core from Synopsys.

In dwc3 land we have support for high-bandwidth, high-speed isochronous
endpoints and some non-critical fixes for large scatter lists.

Apart from these, we have our usual set of cleanups, non-critical fixes,
etc.

7 files changed, 26 insertions, 34 deletions

diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index eca3710d8fc4..8f3f055c05fa 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -550,11 +550,6 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
 
 /*-------------------------------------------------------------------------*/
 
-// high bandwidth multiplier, as encoded in highspeed endpoint descriptors
-#define hb_mult(wMaxPacketSize) (1 + (((wMaxPacketSize) >> 11) & 0x03))
-// ... and packet size, for any kind of endpoint descriptor
-#define max_packet(wMaxPacketSize) ((wMaxPacketSize) & 0x07ff)
-
 /*
  * reverse of qh_urb_transaction:  free a list of TDs.
  * used for cleanup after errors, before HC sees an URB's TDs.
@@ -651,7 +646,7 @@ qh_urb_transaction (
 		token |= (1 /* "in" */ << 8);
 	/* else it's already initted to "out" pid (0 << 8) */
 
-	maxpacket = max_packet(usb_maxpacket(urb->dev, urb->pipe, !is_input));
+	maxpacket = usb_maxpacket(urb->dev, urb->pipe, !is_input);
 
 	/*
 	 * buffer gets wrapped in one or more qtds;
@@ -770,9 +765,11 @@ qh_make (
 	gfp_t			flags
 ) {
 	struct ehci_qh		*qh = ehci_qh_alloc (ehci, flags);
+	struct usb_host_endpoint *ep;
 	u32			info1 = 0, info2 = 0;
 	int			is_input, type;
 	int			maxp = 0;
+	int			mult;
 	struct usb_tt		*tt = urb->dev->tt;
 	struct ehci_qh_hw	*hw;
 
@@ -787,13 +784,15 @@ qh_make (
 
 	is_input = usb_pipein (urb->pipe);
 	type = usb_pipetype (urb->pipe);
-	maxp = usb_maxpacket (urb->dev, urb->pipe, !is_input);
+	ep = usb_pipe_endpoint (urb->dev, urb->pipe);
+	maxp = usb_endpoint_maxp (&ep->desc);
+	mult = usb_endpoint_maxp_mult (&ep->desc);
 
 	/* 1024 byte maxpacket is a hardware ceiling.  High bandwidth
 	 * acts like up to 3KB, but is built from smaller packets.
 	 */
-	if (max_packet(maxp) > 1024) {
-		ehci_dbg(ehci, "bogus qh maxpacket %d\n", max_packet(maxp));
+	if (maxp > 1024) {
+		ehci_dbg(ehci, "bogus qh maxpacket %d\n", maxp);
 		goto done;
 	}
 
@@ -809,8 +808,7 @@ qh_make (
 		unsigned	tmp;
 
 		qh->ps.usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
-				is_input, 0,
-				hb_mult(maxp) * max_packet(maxp)));
+				is_input, 0, mult * maxp));
 		qh->ps.phase = NO_FRAME;
 
 		if (urb->dev->speed == USB_SPEED_HIGH) {
@@ -854,7 +852,7 @@ qh_make (
 			think_time = tt ? tt->think_time : 0;
 			qh->ps.tt_usecs = NS_TO_US(think_time +
 					usb_calc_bus_time (urb->dev->speed,
-					is_input, 0, max_packet (maxp)));
+					is_input, 0, maxp));
 			if (urb->interval > ehci->periodic_size)
 				urb->interval = ehci->periodic_size;
 			qh->ps.period = urb->interval;
@@ -925,11 +923,11 @@ qh_make (
 			 * to help them do so.  So now people expect to use
 			 * such nonconformant devices with Linux too; sigh.
 			 */
-			info1 |= max_packet(maxp) << 16;
+			info1 |= maxp << 16;
 			info2 |= (EHCI_TUNE_MULT_HS << 30);
 		} else {		/* PIPE_INTERRUPT */
-			info1 |= max_packet (maxp) << 16;
-			info2 |= hb_mult (maxp) << 30;
+			info1 |= maxp << 16;
+			info2 |= mult << 30;
 		}
 		break;
 	default:
@@ -1221,7 +1219,7 @@ static int submit_single_step_set_feature(
 
 	token |= (1 /* "in" */ << 8);  /*This is IN stage*/
 
-	maxpacket = max_packet(usb_maxpacket(urb->dev, urb->pipe, 0));
+	maxpacket = usb_maxpacket(urb->dev, urb->pipe, 0);
 
 	qtd_fill(ehci, qtd, buf, len, token, maxpacket);
 
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 1dfe54f14737..980a6b3b2da2 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1064,11 +1064,10 @@ iso_stream_init(
 
 	/* knows about ITD vs SITD */
 	if (dev->speed == USB_SPEED_HIGH) {
-		unsigned multi = hb_mult(maxp);
+		unsigned multi = usb_endpoint_maxp_mult(&urb->ep->desc);
 
 		stream->highspeed = 1;
 
-		maxp = max_packet(maxp);
 		buf1 |= maxp;
 		maxp *= multi;
 
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 45b39b4f3314..321de2e0161b 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1369,7 +1369,7 @@ static u32 xhci_get_endpoint_max_burst(struct usb_device *udev,
 	if (udev->speed == USB_SPEED_HIGH &&
 	    (usb_endpoint_xfer_isoc(&ep->desc) ||
 	     usb_endpoint_xfer_int(&ep->desc)))
-		return (usb_endpoint_maxp(&ep->desc) & 0x1800) >> 11;
+		return usb_endpoint_maxp_mult(&ep->desc) - 1;
 
 	return 0;
 }
@@ -1414,10 +1414,10 @@ static u32 xhci_get_max_esit_payload(struct usb_device *udev,
 	else if (udev->speed >= USB_SPEED_SUPER)
 		return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval);
 
-	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
-	max_burst = (usb_endpoint_maxp(&ep->desc) & 0x1800) >> 11;
+	max_packet = usb_endpoint_maxp(&ep->desc);
+	max_burst = usb_endpoint_maxp_mult(&ep->desc);
 	/* A 0 in max burst means 1 transfer per ESIT */
-	return max_packet * (max_burst + 1);
+	return max_packet * max_burst;
 }
 
 /* Set up an endpoint with one ring segment.  Do not allocate stream rings.
@@ -1460,7 +1460,7 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 	max_esit_payload = xhci_get_max_esit_payload(udev, ep);
 	interval = xhci_get_endpoint_interval(udev, ep);
 	mult = xhci_get_endpoint_mult(udev, ep);
-	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
+	max_packet = usb_endpoint_maxp(&ep->desc);
 	max_burst = xhci_get_endpoint_max_burst(udev, ep);
 	avg_trb_len = max_esit_payload;
 
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 73f763c4f5f5..6e7ddf6cafae 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -337,7 +337,7 @@ int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 
 	xhci_dbg(xhci, "%s() type:%d, speed:%d, mpkt:%d, dir:%d, ep:%p\n",
 		__func__, usb_endpoint_type(&ep->desc), udev->speed,
-		GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc)),
+		usb_endpoint_maxp(&ep->desc),
 		usb_endpoint_dir_in(&ep->desc), ep);
 
 	if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT)) {
@@ -403,7 +403,7 @@ void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 
 	xhci_dbg(xhci, "%s() type:%d, speed:%d, mpks:%d, dir:%d, ep:%p\n",
 		__func__, usb_endpoint_type(&ep->desc), udev->speed,
-		GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc)),
+		usb_endpoint_maxp(&ep->desc),
 		usb_endpoint_dir_in(&ep->desc), ep);
 
 	if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT))
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 822f88a52b72..bdf6b13d9b67 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2991,7 +2991,7 @@ static u32 xhci_td_remainder(struct xhci_hcd *xhci, int transferred,
 	if (xhci->quirks & XHCI_MTK_HOST)
 		trb_buff_len = 0;
 
-	maxp = GET_MAX_PACKET(usb_endpoint_maxp(&urb->ep->desc));
+	maxp = usb_endpoint_maxp(&urb->ep->desc);
 	total_packet_count = DIV_ROUND_UP(td_total_len, maxp);
 
 	/* Queueing functions don't count the current TRB into transferred */
@@ -3007,7 +3007,7 @@ static int xhci_align_td(struct xhci_hcd *xhci, struct urb *urb, u32 enqd_len,
 	unsigned int max_pkt;
 	u32 new_buff_len;
 
-	max_pkt = GET_MAX_PACKET(usb_endpoint_maxp(&urb->ep->desc));
+	max_pkt = usb_endpoint_maxp(&urb->ep->desc);
 	unalign = (enqd_len + *trb_buff_len) % max_pkt;
 
 	/* we got lucky, last normal TRB data on segment is packet aligned */
@@ -3521,7 +3521,7 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		addr = start_addr + urb->iso_frame_desc[i].offset;
 		td_len = urb->iso_frame_desc[i].length;
 		td_remain_len = td_len;
-		max_pkt = GET_MAX_PACKET(usb_endpoint_maxp(&urb->ep->desc));
+		max_pkt = usb_endpoint_maxp(&urb->ep->desc);
 		total_pkt_count = DIV_ROUND_UP(td_len, max_pkt);
 
 		/* A zero-length transfer still involves at least one packet. */
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index ba46c705225d..1cd56417cbec 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3213,7 +3213,7 @@ int xhci_alloc_streams(struct usb_hcd *hcd, struct usb_device *udev,
 
 	for (i = 0; i < num_eps; i++) {
 		ep_index = xhci_get_endpoint_index(&eps[i]->desc);
-		max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&eps[i]->desc));
+		max_packet = usb_endpoint_maxp(&eps[i]->desc);
 		vdev->eps[ep_index].stream_info = xhci_alloc_stream_info(xhci,
 				num_stream_ctxs,
 				num_streams,
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 266e3a86b6b4..8ccc11a974b8 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -749,11 +749,6 @@ struct xhci_ep_ctx {
 #define MAX_PACKET_MASK		(0xffff << 16)
 #define MAX_PACKET_DECODED(p)	(((p) >> 16) & 0xffff)
 
-/* Get max packet size from ep desc. Bit 10..0 specify the max packet size.
- * USB2.0 spec 9.6.6.
- */
-#define GET_MAX_PACKET(p)	((p) & 0x7ff)
-
 /* tx_info bitmasks */
 #define EP_AVG_TRB_LENGTH(p)		((p) & 0xffff)
 #define EP_MAX_ESIT_PAYLOAD_LO(p)	(((p) & 0xffff) << 16)