staging: comedi: ni_660x: tidy up ni_gpct_{write, read}_register()

	return readl(dev->mmio + addr);

}

static void ni_gpct_write_register(struct ni_gpct *counter, unsigned bits,

static void ni_660x_gpct_write(struct ni_gpct *counter, unsigned int bits,

			       enum ni_gpct_register reg)

{

	struct comedi_device *dev = counter->counter_dev->dev;

	enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg);

	unsigned chip = counter->chip_index;

	ni_660x_write(dev, chip, bits, ni_660x_register);

	ni_660x_write(dev, counter->chip_index, bits, ni_660x_register);

}

static unsigned ni_gpct_read_register(struct ni_gpct *counter,

static unsigned int ni_660x_gpct_read(struct ni_gpct *counter,

				      enum ni_gpct_register reg)

{

	struct comedi_device *dev = counter->counter_dev->dev;

	enum ni_660x_register ni_660x_register = ni_gpct_to_660x_register(reg);

	unsigned chip = counter->chip_index;

	return ni_660x_read(dev, chip, ni_660x_register);

	return ni_660x_read(dev, counter->chip_index, ni_660x_register);

}

static inline struct mite_dma_descriptor_ring *mite_ring(struct ni_660x_private

	ni_660x_write(dev, 0, 0, NI660X_STC_DIO_CONTROL);

	devpriv->counter_dev = ni_gpct_device_construct(dev,

						     &ni_gpct_write_register,

						     &ni_gpct_read_register,

						     ni_660x_gpct_write,

						     ni_660x_gpct_read,

						     ni_gpct_variant_660x,

						     ni_660x_num_counters

						     (dev));