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path: root/drivers/usb/host/pci-quirks.c
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Diffstat (limited to 'drivers/usb/host/pci-quirks.c')
-rw-r--r--drivers/usb/host/pci-quirks.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 9eec463..138a555 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -262,6 +262,19 @@ int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev)
}
EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk);
+bool usb_amd_hang_symptom_quirk(void)
+{
+ u8 rev;
+
+ usb_amd_find_chipset_info();
+ rev = amd_chipset.sb_type.rev;
+ /* SB600 and old version of SB700 have hang symptom bug */
+ return amd_chipset.sb_type.gen == AMD_CHIPSET_SB600 ||
+ (amd_chipset.sb_type.gen == AMD_CHIPSET_SB700 &&
+ rev >= 0x3a && rev <= 0x3b);
+}
+EXPORT_SYMBOL_GPL(usb_amd_hang_symptom_quirk);
+
/*
* The hardware normally enables the A-link power management feature, which
* lets the system lower the power consumption in idle states.
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