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| author | Maarten Lankhorst <m.b.lankhorst@gmail.com> | 2011-06-15 23:47:21 +0200 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-06-17 11:28:19 -0700 |
| commit | c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9 (patch) | |
| tree | 3dad607ab4f7e703c742e71904ef4f53ee89ea47 | |
| parent | f6ba6fe2d913da6707a71a413d6ec8ae98d6ce18 (diff) | |
| download | blackbird-op-linux-c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9.tar.gz blackbird-op-linux-c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9.zip | |
xhci: Add reset on resume quirk for asrock p67 host
The asrock p67 xhci controller completely dies on resume, add a
quirk for this, to bring the host back online after a suspend.
This should be backported to stable kernels as old as 2.6.37.
Signed-off-by: Maarten Lankhorst <m.b.lankhorst@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 8 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.c | 2 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 1 |
3 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 17541d09eabb..cb16de213f64 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -29,6 +29,9 @@ #define PCI_VENDOR_ID_FRESCO_LOGIC 0x1b73 #define PCI_DEVICE_ID_FRESCO_LOGIC_PDK 0x1000 +#define PCI_VENDOR_ID_ETRON 0x1b6f +#define PCI_DEVICE_ID_ASROCK_P67 0x7023 + static const char hcd_name[] = "xhci_hcd"; /* called after powerup, by probe or system-pm "wakeup" */ @@ -134,6 +137,11 @@ static int xhci_pci_setup(struct usb_hcd *hcd) xhci->quirks |= XHCI_EP_LIMIT_QUIRK; xhci->limit_active_eps = 64; } + if (pdev->vendor == PCI_VENDOR_ID_ETRON && + pdev->device == PCI_DEVICE_ID_ASROCK_P67) { + xhci->quirks |= XHCI_RESET_ON_RESUME; + xhci_dbg(xhci, "QUIRK: Resetting on resume\n"); + } /* Make sure the HC is halted. */ retval = xhci_halt(xhci); diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 15eb4c3d793c..f5fe1ac301ab 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -759,6 +759,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) msleep(100); spin_lock_irq(&xhci->lock); + if (xhci->quirks & XHCI_RESET_ON_RESUME) + hibernated = true; if (!hibernated) { /* step 1: restore register */ diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index ba90af1c34b4..d8bbf5ccb10d 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1310,6 +1310,7 @@ struct xhci_hcd { */ #define XHCI_EP_LIMIT_QUIRK (1 << 5) #define XHCI_BROKEN_MSI (1 << 6) +#define XHCI_RESET_ON_RESUME (1 << 7) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ |
