diff options
| author | Manjunath Goudar <manjunath.goudar@linaro.org> | 2013-05-28 18:34:50 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-30 21:36:03 +0900 |
| commit | 2621d0119e574f12496c4ab731265d5777cb6a18 (patch) | |
| tree | 33dcdb956f43d4f4b8859f1ebbaf6cbae400fae5 /drivers/usb/host/pci-quirks.c | |
| parent | 95e44d44fc29b3d84a74fc5793d8a78ba843c66b (diff) | |
USB: OHCI: Generic changes to make ohci-pci a separate driver
Note that this changes is part of separating the ohci pci host controller
driver from ohci-hcd host code.
This contains :
-Moved sb800_prefetch() function from ohci-pci.c to pci-quirks.c file
and EXPORTed, this is part of the effort to move the ohci pci related
code to generic pci code.
-Passed "device" argument instead of "ohci_hcd" in sb800_prefetch()
function to avoid extra include file in pci-quirks.c.
V2:
-Passed "device" argment instead of "pci_dev", then we use to_pci_dev()
to get the "pci_dev" structure.
Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/pci-quirks.c')
| -rw-r--r-- | drivers/usb/host/pci-quirks.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 4c338ec03a07..b9848e4d3d44 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -91,6 +91,19 @@ static struct amd_chipset_info { static DEFINE_SPINLOCK(amd_lock); +void sb800_prefetch(struct device *dev, int on) +{ + u16 misc; + struct pci_dev *pdev = to_pci_dev(dev); + + pci_read_config_word(pdev, 0x50, &misc); + if (on == 0) + pci_write_config_word(pdev, 0x50, misc & 0xfcff); + else + pci_write_config_word(pdev, 0x50, misc | 0x0300); +} +EXPORT_SYMBOL_GPL(sb800_prefetch); + int usb_amd_find_chipset_info(void) { u8 rev = 0; |