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path: root/drivers/usb/host/xhci.c
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Diffstat (limited to 'drivers/usb/host/xhci.c')
-rw-r--r--drivers/usb/host/xhci.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2c49f00260ca..9478caa2f71f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -27,6 +27,7 @@
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/dmi.h>
+#include <linux/dma-mapping.h>
#include "xhci.h"
@@ -329,7 +330,7 @@ static void xhci_cleanup_msix(struct xhci_hcd *xhci)
return;
}
-static void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
+static void __maybe_unused xhci_msix_sync_irqs(struct xhci_hcd *xhci)
{
int i;
@@ -1181,9 +1182,6 @@ static int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev,
}
xhci = hcd_to_xhci(hcd);
- if (xhci->xhc_state & XHCI_STATE_HALTED)
- return -ENODEV;
-
if (check_virt_dev) {
if (!udev->slot_id || !xhci->devs[udev->slot_id]) {
printk(KERN_DEBUG "xHCI %s called with unaddressed "
@@ -1199,6 +1197,9 @@ static int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev,
}
}
+ if (xhci->xhc_state & XHCI_STATE_HALTED)
+ return -ENODEV;
+
return 1;
}
@@ -3898,7 +3899,7 @@ int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1)
* Issue an Evaluate Context command to change the Maximum Exit Latency in the
* slot context. If that succeeds, store the new MEL in the xhci_virt_device.
*/
-static int xhci_change_max_exit_latency(struct xhci_hcd *xhci,
+static int __maybe_unused xhci_change_max_exit_latency(struct xhci_hcd *xhci,
struct usb_device *udev, u16 max_exit_latency)
{
struct xhci_virt_device *virt_dev;
@@ -4892,6 +4893,13 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
get_quirks(dev, xhci);
+ /* In xhci controllers which follow xhci 1.0 spec gives a spurious
+ * success event after a short transfer. This quirk will ignore such
+ * spurious event.
+ */
+ if (xhci->hci_version > 0x96)
+ xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
+
/* Make sure the HC is halted. */
retval = xhci_halt(xhci);
if (retval)