From f3a16ba6a1152b8966dcadc668af4cf00623c7b1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Wed, 16 Dec 2015 14:55:49 -0300 Subject: Linux-libre 4.3.3-gnu --- drivers/firewire/ohci.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/firewire/ohci.c') 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); -- cgit v1.2.3