Merge tag 'usb-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver patches for 5.2-rc1

  There is the usual set of:

   - USB gadget updates

   - PHY driver updates and additions

   - USB serial driver updates and fixes

   - typec updates and new chips supported

   - mtu3 driver updates

   - xhci driver updates

   - other tiny driver updates

  Nothing really interesting, just constant forward progress.

  All of these have been in linux-next for a while with no reported
  issues. The usb-gadget and usb-serial trees were merged a bit "late",
  but both of them had been in linux-next before they got merged here
  last Friday"

* tag 'usb-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (206 commits)
  USB: serial: f81232: implement break control
  USB: serial: f81232: add high baud rate support
  USB: serial: f81232: clear overrun flag
  USB: serial: f81232: fix interrupt worker not stop
  usb: dwc3: Rename DWC3_DCTL_LPM_ERRATA
  usb: dwc3: Fix default lpm_nyet_threshold value
  usb: dwc3: debug: Print GET_STATUS(device) tracepoint
  usb: dwc3: Do core validation early on probe
  usb: dwc3: gadget: Set lpm_capable
  usb: gadget: atmel: tie wake lock to running clock
  usb: gadget: atmel: support USB suspend
  usb: gadget: atmel_usba_udc: simplify setting of interrupt-enabled mask
  dwc2: gadget: Fix completed transfer size calculation in DDMA
  usb: dwc2: Set lpm mode parameters depend on HW configuration
  usb: dwc2: Fix channel disable flow
  usb: dwc2: Set actual frame number for completed ISOC transfer
  usb: gadget: do not use __constant_cpu_to_le16
  usb: dwc2: gadget: Increase descriptors count for ISOC's
  usb: introduce usb_ep_type_string() function
  usb: dwc3: move synchronize_irq() out of the spinlock protected block
  ...

1 files changed, 46 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 9334cdee382a..a450a99e90eb 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1303,6 +1303,8 @@ enum xhci_setup_dev {
 #define TRB_IOC			(1<<5)
 /* The buffer pointer contains immediate data */
 #define TRB_IDT			(1<<6)
+/* TDs smaller than this might use IDT */
+#define TRB_IDT_MAX_SIZE	8
 
 /* Block Event Interrupt */
 #define	TRB_BEI			(1<<9)
@@ -2149,6 +2151,21 @@ static inline struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci,
 					urb->stream_id);
 }
 
+/*
+ * TODO: As per spec Isochronous IDT transmissions are supported. We bypass
+ * them anyways as we where unable to find a device that matches the
+ * constraints.
+ */
+static inline bool xhci_urb_suitable_for_idt(struct urb *urb)
+{
+	if (!usb_endpoint_xfer_isoc(&urb->ep->desc) && usb_urb_dir_out(urb) &&
+	    usb_endpoint_maxp(&urb->ep->desc) >= TRB_IDT_MAX_SIZE &&
+	    urb->transfer_buffer_length <= TRB_IDT_MAX_SIZE)
+		return true;
+
+	return false;
+}
+
 static inline char *xhci_slot_state_string(u32 state)
 {
 	switch (state) {
@@ -2384,6 +2401,35 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2,
 	return str;
 }
 
+static inline const char *xhci_decode_ctrl_ctx(unsigned long drop,
+					       unsigned long add)
+{
+	static char	str[1024];
+	unsigned int	bit;
+	int		ret = 0;
+
+	if (drop) {
+		ret = sprintf(str, "Drop:");
+		for_each_set_bit(bit, &drop, 32)
+			ret += sprintf(str + ret, " %d%s",
+				       bit / 2,
+				       bit % 2 ? "in":"out");
+		ret += sprintf(str + ret, ", ");
+	}
+
+	if (add) {
+		ret += sprintf(str + ret, "Add:%s%s",
+			       (add & SLOT_FLAG) ? " slot":"",
+			       (add & EP0_FLAG) ? " ep0":"");
+		add &= ~(SLOT_FLAG | EP0_FLAG);
+		for_each_set_bit(bit, &add, 32)
+			ret += sprintf(str + ret, " %d%s",
+				       bit / 2,
+				       bit % 2 ? "in":"out");
+	}
+	return str;
+}
+
 static inline const char *xhci_decode_slot_context(u32 info, u32 info2,
 		u32 tt_info, u32 state)
 {