From 2621d0119e574f12496c4ab731265d5777cb6a18 Mon Sep 17 00:00:00 2001 From: Manjunath Goudar Date: Tue, 28 May 2013 18:34:50 +0530 Subject: 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 Acked-by: Alan Stern Cc: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/pci-quirks.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/usb/host/pci-quirks.c') 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; -- cgit v1.2.3-58-ga151