firewire: ohci: add module parameter to activate quirk fixes

[pandora-kernel.git] / drivers / firewire / ohci.c

diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 3dc2e85..9815137 100644 (file)
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -246,6 +246,15 @@ static const struct {
        {PCI_VENDOR_ID_APPLE,   PCI_DEVICE_ID_APPLE_UNI_N_FW, QUIRK_BE_HEADERS},
 };
 
+/* This overrides anything that was found in ohci_quirks[]. */
+static int param_quirks;
+module_param_named(quirks, param_quirks, int, 0644);
+MODULE_PARM_DESC(quirks, "Chip quirks (default = 0"
+       ", nonatomic cycle timer = "    __stringify(QUIRK_CYCLE_TIMER)
+       ", reset packet generation = "  __stringify(QUIRK_RESET_PACKET)
+       ", AR/selfID endianess = "      __stringify(QUIRK_BE_HEADERS)
+       ")");
+
 #ifdef CONFIG_FIREWIRE_OHCI_DEBUG
 
 #define OHCI_PARAM_DEBUG_AT_AR         1
@@ -2370,6 +2379,8 @@ static int __devinit pci_probe(struct pci_dev *dev,
                        ohci->quirks = ohci_quirks[i].flags;
                        break;
                }
+       if (param_quirks)
+               ohci->quirks = param_quirks;
 
        ar_context_init(&ohci->ar_request_ctx, ohci,
                        OHCI1394_AsReqRcvContextControlSet);