diff options
author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2013-08-30 11:05:58 -0700 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-17 07:47:40 -0700 |
commit | 97f4289ad08cffe55de06d4ac4f89ac540450aee (patch) | |
tree | 9aac1e13dd79ecc23b38d6955f80bdcf68b020df /drivers/staging/comedi/drivers/adl_pci7x3x.c | |
parent | staging: comedi: usbdux drivers: use comedi_dio_update_state() (diff) | |
download | linux-dev-97f4289ad08cffe55de06d4ac4f89ac540450aee.tar.xz linux-dev-97f4289ad08cffe55de06d4ac4f89ac540450aee.zip |
staging: comedi: drivers: use comedi_dio_update_state() for simple cases
Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state for simple cases where the hardware is updated
when any channel is modified.
Also, fix a bug in the amplc_pc263 and amplc_pci263 drivers where the
current state is not returned in data[1].
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/adl_pci7x3x.c')
-rw-r--r-- | drivers/staging/comedi/drivers/adl_pci7x3x.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/staging/comedi/drivers/adl_pci7x3x.c b/drivers/staging/comedi/drivers/adl_pci7x3x.c index 81b7203f824f..5617f5ca384a 100644 --- a/drivers/staging/comedi/drivers/adl_pci7x3x.c +++ b/drivers/staging/comedi/drivers/adl_pci7x3x.c @@ -112,21 +112,10 @@ static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev, unsigned int *data) { unsigned long reg = (unsigned long)s->private; - unsigned int mask = data[0]; - unsigned int bits = data[1]; - - if (mask) { - s->state &= ~mask; - s->state |= (bits & mask); + if (comedi_dio_update_state(s, data)) outl(s->state, dev->iobase + reg); - } - /* - * NOTE: The output register is not readable. - * This returned state will not be correct until all the - * outputs have been updated. - */ data[1] = s->state; return insn->n; |