static int __vlynq_try_remote()

in vlynq.c [375:410]

• 31 lines of code
• 7 McCabe index (conditional complexity)

static int __vlynq_try_remote(struct vlynq_device *dev)
{
	int i;

	vlynq_reset(dev);
	for (i = dev->dev_id ? vlynq_rdiv2 : vlynq_rdiv8; dev->dev_id ?
			i <= vlynq_rdiv8 : i >= vlynq_rdiv2;
		dev->dev_id ? i++ : i--) {

		if (!vlynq_linked(dev))
			break;

		writel((readl(&dev->remote->control) &
				~VLYNQ_CTRL_CLOCK_MASK) |
				VLYNQ_CTRL_CLOCK_INT |
				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1),
				&dev->remote->control);
		writel((readl(&dev->local->control)
				& ~(VLYNQ_CTRL_CLOCK_INT |
				VLYNQ_CTRL_CLOCK_MASK)) |
				VLYNQ_CTRL_CLOCK_DIV(i - vlynq_rdiv1),
				&dev->local->control);

		if (vlynq_linked(dev)) {
			printk(KERN_DEBUG
				"%s: using remote clock divisor %d\n",
				dev_name(&dev->dev), i - vlynq_rdiv1 + 1);
			dev->divisor = i;
			return 0;
		} else {
			vlynq_reset(dev);
		}
	}

	return -ENODEV;
}