diff options
author | Don Dugger <donald.d.dugger@intel.com> | 2015-10-29 22:15:25 +0000 |
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committer | Gerrit Code Review <gerrit@172.30.200.206> | 2015-10-29 22:15:25 +0000 |
commit | afc76d554ed517e38d46b6b182a7016406a1323f (patch) | |
tree | 06133cb33a43488837ea67667458e1582f2f40ce /kernel/drivers/staging/comedi/drivers/adl_pci7x3x.c | |
parent | 41f827bfbb10e03c4d228fbcc801dd51fb9983b0 (diff) | |
parent | ec0a2ed6d8a5e555edef907895c041e285fdb495 (diff) |
Merge "These changes are a raw update to a vanilla kernel 4.1.10, with the recently announced rt patch patch-4.1.10-rt10.patch. No further changes needed."
Diffstat (limited to 'kernel/drivers/staging/comedi/drivers/adl_pci7x3x.c')
-rw-r--r-- | kernel/drivers/staging/comedi/drivers/adl_pci7x3x.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/drivers/staging/comedi/drivers/adl_pci7x3x.c b/kernel/drivers/staging/comedi/drivers/adl_pci7x3x.c index 934af3ff7..b0fc027cf 100644 --- a/kernel/drivers/staging/comedi/drivers/adl_pci7x3x.c +++ b/kernel/drivers/staging/comedi/drivers/adl_pci7x3x.c @@ -120,8 +120,20 @@ static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev, { unsigned long reg = (unsigned long)s->private; - if (comedi_dio_update_state(s, data)) - outl(s->state, dev->iobase + reg); + if (comedi_dio_update_state(s, data)) { + unsigned int val = s->state; + + if (s->n_chan == 16) { + /* + * It seems the PCI-7230 needs the 16-bit DO state + * to be shifted left by 16 bits before being written + * to the 32-bit register. Set the value in both + * halves of the register to be sure. + */ + val |= val << 16; + } + outl(val, dev->iobase + reg); + } data[1] = s->state; |