diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-14 13:51:10 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-14 13:51:23 (GMT) |
| commit | dcc854579059ff9633db4dc41c681371d22f794e (patch) | |
| tree | 985489cf3efcb1fcaa193237fb8674d530c188dd /drivers/usb/host/xhci.c | |
| parent | e73a9891b3a1c9fc0970e0c9dbe2cc47933ad752 (diff) | |
| parent | 2c53b436a30867eb6b47dd7bab23ba638d1fb0d2 (diff) | |
| download | linux-dcc854579059ff9633db4dc41c681371d22f794e.tar.xz | |
Merge 3.0-rc2 into usb-linus as it's needed by some USB patches
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 743cf80..d0a6540 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -430,12 +430,19 @@ int xhci_run(struct usb_hcd *hcd) free_irq(hcd->irq, hcd); hcd->irq = -1; + /* Some Fresco Logic host controllers advertise MSI, but fail to + * generate interrupts. Don't even try to enable MSI. + */ + if (xhci->quirks & XHCI_BROKEN_MSI) + goto legacy_irq; + ret = xhci_setup_msix(xhci); if (ret) /* fall back to msi*/ ret = xhci_setup_msi(xhci); if (ret) { +legacy_irq: /* fall back to legacy interrupt*/ ret = request_irq(pdev->irq, &usb_hcd_irq, IRQF_SHARED, hcd->irq_descr, hcd); @@ -1848,8 +1855,8 @@ int xhci_check_bandwidth(struct usb_hcd *hcd, struct usb_device *udev) /* Free any rings that were dropped, but not changed. */ for (i = 1; i < 31; ++i) { - if ((ctrl_ctx->drop_flags & (1 << (i + 1))) && - !(ctrl_ctx->add_flags & (1 << (i + 1)))) + if ((le32_to_cpu(ctrl_ctx->drop_flags) & (1 << (i + 1))) && + !(le32_to_cpu(ctrl_ctx->add_flags) & (1 << (i + 1)))) xhci_free_or_cache_endpoint_ring(xhci, virt_dev, i); } xhci_zero_in_ctx(xhci, virt_dev); @@ -2466,6 +2473,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) struct xhci_command *reset_device_cmd; int timeleft; int last_freed_endpoint; + struct xhci_slot_ctx *slot_ctx; ret = xhci_check_args(hcd, udev, NULL, 0, false, __func__); if (ret <= 0) @@ -2498,6 +2506,12 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) return -EINVAL; } + /* If device is not setup, there is no point in resetting it */ + slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); + if (GET_SLOT_STATE(le32_to_cpu(slot_ctx->dev_state)) == + SLOT_STATE_DISABLED) + return 0; + xhci_dbg(xhci, "Resetting device with slot ID %u\n", slot_id); /* Allocate the command structure that holds the struct completion. * Assume we're in process context, since the normal device reset |