drivers/usb: Skip auto handoff for TI and RENESAS usb controllers

Never seen XHCI auto handoff working on TI and RENESAS cards.
Eventually, we force handoff. This code forces the handoff
unconditionally. It saves 5 seconds boot time for each card.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index d793f548dfe26aef387d13b703454abe67beb5be..a9a1e4c40480cf2c5c7c7995aa5d337d3ef3ee87 100644 (file)
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -995,6 +995,14 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
        }
        val = readl(base + ext_cap_offset);
 
+       /* Auto handoff never worked for these devices. Force it and continue */
+       if ((pdev->vendor == PCI_VENDOR_ID_TI && pdev->device == 0x8241) ||
+                       (pdev->vendor == PCI_VENDOR_ID_RENESAS
+                        && pdev->device == 0x0014)) {
+               val = (val | XHCI_HC_OS_OWNED) & ~XHCI_HC_BIOS_OWNED;
+               writel(val, base + ext_cap_offset);
+       }
+
        /* If the BIOS owns the HC, signal that the OS wants it, and wait */
        if (val & XHCI_HC_BIOS_OWNED) {
                writel(val | XHCI_HC_OS_OWNED, base + ext_cap_offset);