diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-21 23:58:40 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-21 23:58:40 (GMT) |
commit | e2a3a64855f2f906e0ba9056a3a57aeb73b1a968 (patch) | |
tree | 832a6ae44f43740b1e4626b93d28d3b84e58a2ea /drivers/usb/host | |
parent | 1fc671b3be8f671482871d9a0b577b6d96914e8e (diff) | |
parent | 9005355af23856c55a5538c9024355785424821b (diff) | |
download | linux-e2a3a64855f2f906e0ba9056a3a57aeb73b1a968.tar.xz |
Merge tag 'for-usb-next-2013-12-20' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next
Sarah writes:
xhci: Cleanups, non-urgent fixes for 3.14.
Happy Holidays, Greg!
Here's four patches to be queued to usb-next for 3.14.
One adds a module parameter to the xHCI driver to allow users to enable
xHCI quirks without recompiling their kernel, which you've already said
is fine. The second patch is a bug fix for new usbtest code that's only
in usb-next. The third patch is simple cleanup.
The last patch is a non-urgent bug fix for xHCI platform devices. The
bug has been in the code since 3.9. You've been asking me to hold off
on non-urgent bug fixes after -rc4/-rc5, so it can go into usb-next, and
be backported to stable once 3.14 is out.
These have all been tested over the past week. I did run across one
oops, but it turned out to be a bug in 3.12, and therefore not related
to any of these patches.
Please queue these for usb-next and 3.14.
Thanks,
Sarah Sharp
Diffstat (limited to 'drivers/usb/host')
-rw-r--r-- | drivers/usb/host/xhci-ring.c | 6 | ||||
-rw-r--r-- | drivers/usb/host/xhci.c | 9 |
2 files changed, 9 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index c06df38..09b2b55 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -156,8 +156,6 @@ static void next_trb(struct xhci_hcd *xhci, */ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) { - unsigned long long addr; - ring->deq_updates++; /* @@ -186,8 +184,6 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) ring->dequeue++; } } while (last_trb(xhci, ring, ring->deq_seg, ring->dequeue)); - - addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue); } /* @@ -212,7 +208,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, { u32 chain; union xhci_trb *next; - unsigned long long addr; chain = le32_to_cpu(ring->enqueue->generic.field[3]) & TRB_CHAIN; /* If this is not event ring, there is one less usable TRB */ @@ -264,7 +259,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, ring->enqueue = ring->enq_seg->trbs; next = ring->enqueue; } - addr = (unsigned long long) xhci_trb_virt_to_dma(ring->enq_seg, ring->enqueue); } /* diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index d68ec1a..f8ffc51 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -40,6 +40,10 @@ static int link_quirk; module_param(link_quirk, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(link_quirk, "Don't clear the chain bit on a link TRB"); +static unsigned int quirks; +module_param(quirks, uint, S_IRUGO); +MODULE_PARM_DESC(quirks, "Bit flags for quirks to be enabled as default"); + /* TODO: copied from ehci-hcd.c - can this be refactored? */ /* * xhci_handshake - spin reading hc until handshake completes or fails @@ -321,6 +325,9 @@ static void xhci_cleanup_msix(struct xhci_hcd *xhci) struct usb_hcd *hcd = xhci_to_hcd(xhci); struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + if (xhci->quirks & XHCI_PLAT) + return; + xhci_free_irq(xhci); if (xhci->msix_entries) { @@ -4770,6 +4777,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) xhci->hcc_params = readl(&xhci->cap_regs->hcc_params); xhci_print_registers(xhci); + xhci->quirks = quirks; + get_quirks(dev, xhci); /* In xhci controllers which follow xhci 1.0 spec gives a spurious |