diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2013-06-12 16:21:53 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-06-17 14:33:56 -0700 |
| commit | 040540763b5729b99e24c118d4343f489a00b456 (patch) | |
| tree | 57b8851f3acc41315117314488f6af1d39775794 /drivers/staging/comedi | |
| parent | 8d4729066cde58c730573d6aad2ea29f8048fcb3 (diff) | |
| download | linux-040540763b5729b99e24c118d4343f489a00b456.tar.gz linux-040540763b5729b99e24c118d4343f489a00b456.tar.bz2 linux-040540763b5729b99e24c118d4343f489a00b456.zip | |
staging: comedi: addi_apci_3xxx: remove 'b_SingleDiff' private data
The analog reference desired for the acquisition is stored in the
insn->chanspec that is passed to the (*insn_read) function. There is
no need to use a private data variable to hold the desired analog
reference that is set in the (*insn_config).
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')
| -rw-r--r-- | drivers/staging/comedi/drivers/addi-data/hwdrv_apci3xxx.c | 8 | ||||
| -rw-r--r-- | drivers/staging/comedi/drivers/addi_apci_3xxx.c | 4 |
2 files changed, 2 insertions, 10 deletions
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3xxx.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3xxx.c index ce4c41fb5ef7..bea57235b287 100644 --- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3xxx.c +++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3xxx.c @@ -41,14 +41,10 @@ static int apci3xxx_ai_configure(struct comedi_device *dev, { const struct apci3xxx_boardinfo *board = comedi_board(dev); struct apci3xxx_private *devpriv = dev->private; - unsigned int aref_mode = data[1]; unsigned int time_base = data[2]; unsigned int reload_time = data[3]; unsigned int acq_ns; - if (aref_mode != 0 && aref_mode != 1) - return -EINVAL; - if (time_base > 2) return -EINVAL; @@ -80,7 +76,6 @@ static int apci3xxx_ai_configure(struct comedi_device *dev, devpriv->ui_EocEosConversionTime = reload_time; devpriv->b_EocEosConversionTimeBase = time_base; - devpriv->b_SingelDiff = aref_mode; /* Set the convert timing unit */ writel(time_base, devpriv->mmio + 36); @@ -116,6 +111,7 @@ static int apci3xxx_ai_insn_read(struct comedi_device *dev, struct apci3xxx_private *devpriv = dev->private; unsigned int chan = CR_CHAN(insn->chanspec); unsigned int range = CR_RANGE(insn->chanspec); + unsigned int aref = CR_AREF(insn->chanspec); unsigned char use_interrupt = 0; /* FIXME: use interrupts */ unsigned int delay_mode; unsigned int val; @@ -139,7 +135,7 @@ static int apci3xxx_ai_insn_read(struct comedi_device *dev, /* Make the configuration */ val = (range & 3) | ((range >> 2) << 6) | - (devpriv->b_SingelDiff << 7); + ((aref == AREF_DIFF) << 7); writel(val, devpriv->mmio + 0); /* Channel selection */ diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c index bb62c871da9f..b724cf653080 100644 --- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c +++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c @@ -356,7 +356,6 @@ struct apci3xxx_private { unsigned char b_EocEosInterrupt; unsigned int ui_EocEosConversionTime; unsigned char b_EocEosConversionTimeBase; - unsigned char b_SingelDiff; }; #include "addi-data/hwdrv_apci3xxx.c" @@ -611,9 +610,6 @@ static int apci3xxx_auto_attach(struct comedi_device *dev, s->insn_config = apci3xxx_ai_insn_config; s->insn_read = apci3xxx_ai_insn_read; - if ((board->ai_subdev_flags & (SDF_COMMON | SDF_GROUND)) == 0) - devpriv->b_SingelDiff = 1; - } else { s->type = COMEDI_SUBD_UNUSED; } |