static int __vlynq_try_external()

in vlynq.c [455:477]

• 19 lines of code
• 3 McCabe index (conditional complexity)

static int __vlynq_try_external(struct vlynq_device *dev)
{
	vlynq_reset(dev);
	if (!vlynq_linked(dev))
		return -ENODEV;

	writel((readl(&dev->remote->control) &
			~VLYNQ_CTRL_CLOCK_INT),
			&dev->remote->control);

	writel((readl(&dev->local->control) &
			~VLYNQ_CTRL_CLOCK_INT),
			&dev->local->control);

	if (vlynq_linked(dev)) {
		printk(KERN_DEBUG "%s: using external clock\n",
			dev_name(&dev->dev));
			dev->divisor = vlynq_div_external;
		return 0;
	}

	return -ENODEV;
}