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| author | Tony Lindgren <tony@atomide.com> | 2015-11-25 10:56:40 -0800 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2015-11-25 10:56:40 -0800 |
| commit | 970259bff472579204108c6f27036ec4d1206ae1 (patch) | |
| tree | 869bdcda9aac4c67712d93e6141056fdf3f41bd8 /drivers/firewire/ohci.c | |
| parent | 9b1b61cd8e31d9beba871333d7a798b3adb89288 (diff) | |
| parent | 29f5b34ca1a191c2cf4f6c8c12f4dec56e8d3bc1 (diff) | |
Merge branch '81xx' into omap-for-v4.4/fixes
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 f51d376d10ba..c2f5117fd8cb 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); |