1 files changed, 27 insertions, 17 deletions

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 96a740543183..3abe70ff1b1e 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -487,8 +487,8 @@ static void xhci_disable_port(struct usb_hcd *hcd, struct xhci_hcd *xhci,
 	/* Write 1 to disable the port */
 	writel(port_status | PORT_PE, addr);
 	port_status = readl(addr);
-	xhci_dbg(xhci, "disable port, actual port %d status  = 0x%x\n",
-			wIndex, port_status);
+	xhci_dbg(xhci, "disable port %d-%d, portsc: 0x%x\n",
+		 hcd->self.busnum, wIndex + 1, port_status);
 }
 
 static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue,
@@ -537,8 +537,9 @@ static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue,
 	/* Change bits are all write 1 to clear */
 	writel(port_status | status, addr);
 	port_status = readl(addr);
-	xhci_dbg(xhci, "clear port %s change, actual port %d status  = 0x%x\n",
-			port_change_bit, wIndex, port_status);
+
+	xhci_dbg(xhci, "clear port%d %s change, portsc: 0x%x\n",
+		 wIndex + 1, port_change_bit, port_status);
 }
 
 struct xhci_hub *xhci_get_rhub(struct usb_hcd *hcd)
@@ -565,13 +566,16 @@ static void xhci_set_port_power(struct xhci_hcd *xhci, struct usb_hcd *hcd,
 	rhub = xhci_get_rhub(hcd);
 	port = rhub->ports[index];
 	temp = readl(port->addr);
+
+	xhci_dbg(xhci, "set port power %d-%d %s, portsc: 0x%x\n",
+		 hcd->self.busnum, index + 1, on ? "ON" : "OFF", temp);
+
 	temp = xhci_port_state_to_neutral(temp);
+
 	if (on) {
 		/* Power on */
 		writel(temp | PORT_POWER, port->addr);
-		temp = readl(port->addr);
-		xhci_dbg(xhci, "set port power, actual port %d status  = 0x%x\n",
-						index, temp);
+		readl(port->addr);
 	} else {
 		/* Power off */
 		writel(temp & ~PORT_POWER, port->addr);
@@ -666,12 +670,17 @@ void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port,
 			 u32 link_state)
 {
 	u32 temp;
+	u32 portsc;
 
-	temp = readl(port->addr);
-	temp = xhci_port_state_to_neutral(temp);
+	portsc = readl(port->addr);
+	temp = xhci_port_state_to_neutral(portsc);
 	temp &= ~PORT_PLS_MASK;
 	temp |= PORT_LINK_STROBE | link_state;
 	writel(temp, port->addr);
+
+	xhci_dbg(xhci, "Set port %d-%d link state, portsc: 0x%x, write 0x%x",
+		 port->rhub->hcd->self.busnum, port->hcd_portnum + 1,
+		 portsc, temp);
 }
 
 static void xhci_set_remote_wake_mask(struct xhci_hcd *xhci,
@@ -840,7 +849,9 @@ static int xhci_handle_usb2_port_link_resume(struct xhci_port *port,
 	} else if (time_after_eq(jiffies, bus_state->resume_done[wIndex])) {
 		int time_left;
 
-		xhci_dbg(xhci, "Resume USB2 port %d\n", wIndex + 1);
+		xhci_dbg(xhci, "resume USB2 port %d-%d\n",
+			 hcd->self.busnum, wIndex + 1);
+
 		bus_state->resume_done[wIndex] = 0;
 		clear_bit(wIndex, &bus_state->resuming_ports);
 
@@ -867,9 +878,8 @@ static int xhci_handle_usb2_port_link_resume(struct xhci_port *port,
 		} else {
 			int port_status = readl(port->addr);
 
-			xhci_warn(xhci, "Port resume %i msec timed out, portsc = 0x%x\n",
-				  XHCI_MAX_REXIT_TIMEOUT_MS,
-				  port_status);
+			xhci_warn(xhci, "Port resume timed out, port %d-%d: 0x%x\n",
+				  hcd->self.busnum, wIndex + 1, port_status);
 			*status |= USB_PORT_STAT_SUSPEND;
 			clear_bit(wIndex, &bus_state->rexit_ports);
 		}
@@ -1124,9 +1134,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		if (status == 0xffffffff)
 			goto error;
 
-		xhci_dbg(xhci, "get port status, actual port %d status  = 0x%x\n",
-				wIndex, temp);
-		xhci_dbg(xhci, "Get port status returned 0x%x\n", status);
+		xhci_dbg(xhci, "Get port status %d-%d read: 0x%x, return 0x%x",
+			 hcd->self.busnum, wIndex + 1, temp, status);
 
 		put_unaligned(cpu_to_le32(status), (__le32 *) buf);
 		/* if USB 3.1 extended port status return additional 4 bytes */
@@ -1182,7 +1191,8 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			temp = readl(ports[wIndex]->addr);
 			if ((temp & PORT_PE) == 0 || (temp & PORT_RESET)
 				|| (temp & PORT_PLS_MASK) >= XDEV_U3) {
-				xhci_warn(xhci, "USB core suspending device not in U0/U1/U2.\n");
+				xhci_warn(xhci, "USB core suspending port %d-%d not in U0/U1/U2\n",
+					  hcd->self.busnum, wIndex + 1);
 				goto error;
 			}