diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-16 14:55:49 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-16 14:55:49 -0300 |
| commit | f3a16ba6a1152b8966dcadc668af4cf00623c7b1 (patch) | |
| tree | 5fee49a027f6fddf70b29369d24703946370eb77 /drivers/firewire/ohci.c | |
| parent | b652965369918b9d992dc42fb060240f94d98769 (diff) | |
Linux-libre 4.3.3-gnu
Diffstat (limited to 'drivers/firewire/ohci.c')
| -rw-r--r-- | drivers/firewire/ohci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index f51d376d1..c2f5117fd 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -3675,6 +3675,11 @@ static int pci_probe(struct pci_dev *dev, reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, ~0); ohci->it_context_support = reg_read(ohci, OHCI1394_IsoXmitIntMaskSet); + /* JMicron JMB38x often shows 0 at first read, just ignore it */ + if (!ohci->it_context_support) { + ohci_notice(ohci, "overriding IsoXmitIntMask\n"); + ohci->it_context_support = 0xf; + } reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, ~0); ohci->it_context_mask = ohci->it_context_support; ohci->n_it = hweight32(ohci->it_context_mask); |