staging: comedi: ni_660x: remove ni660x_config_filter()
This simple function is only called by ni_660x_dio_insn_config(). Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1114,22 +1114,13 @@ static int ni_660x_set_pfi_routing(struct comedi_device *dev, unsigned chan,
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return 0;
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}
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static void ni660x_config_filter(struct comedi_device *dev,
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unsigned pfi_channel,
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enum ni_gpct_filter_select filter)
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{
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unsigned bits = ni_660x_read_register(dev, 0, IOConfigReg(pfi_channel));
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bits &= ~pfi_input_select_mask(pfi_channel);
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bits |= pfi_input_select_bits(pfi_channel, filter);
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ni_660x_write_register(dev, 0, bits, IOConfigReg(pfi_channel));
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}
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static int ni_660x_dio_insn_config(struct comedi_device *dev,
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struct comedi_subdevice *s,
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struct comedi_insn *insn, unsigned int *data)
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{
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struct ni_660x_private *devpriv = dev->private;
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int chan = CR_CHAN(insn->chanspec);
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unsigned int val;
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/* The input or output configuration of each digital line is
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* configured by a special insn_config instruction. chanspec
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@ -1158,7 +1149,10 @@ static int ni_660x_dio_insn_config(struct comedi_device *dev,
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data[1] = devpriv->pfi_output_selects[chan];
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break;
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case INSN_CONFIG_FILTER:
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ni660x_config_filter(dev, chan, data[1]);
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val = ni_660x_read_register(dev, 0, IOConfigReg(chan));
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val &= ~pfi_input_select_mask(chan);
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val |= pfi_input_select_bits(chan, data[1]);
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ni_660x_write_register(dev, 0, val, IOConfigReg(chan));
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break;
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default:
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return -EINVAL;
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