C++ (Cpp) ofnode_read_string_index Examples

Example #1

File: dwapb_gpio.c Project: masahir0y/u-boot-yamada

static int gpio_dwapb_bind(struct udevice *dev)
{
	struct gpio_dwapb_platdata *plat = dev_get_platdata(dev);
	struct udevice *subdev;
	fdt_addr_t base;
	int ret, bank = 0;
	ofnode node;

	/* If this is a child device, there is nothing to do here */
	if (plat)
		return 0;

	base = dev_read_addr(dev);
	if (base == FDT_ADDR_T_NONE) {
		debug("Can't get the GPIO register base address\n");
		return -ENXIO;
	}

	for (node = dev_read_first_subnode(dev); ofnode_valid(node);
	     node = dev_read_next_subnode(node)) {
		if (!ofnode_read_bool(node, "gpio-controller"))
			continue;

		plat = devm_kcalloc(dev, 1, sizeof(*plat), GFP_KERNEL);
		if (!plat)
			return -ENOMEM;

		plat->base = base;
		plat->bank = bank;
		plat->pins = ofnode_read_u32_default(node, "snps,nr-gpios", 0);

		if (ofnode_read_string_index(node, "bank-name", 0,
					     &plat->name)) {
			/*
			 * Fall back to node name. This means accessing pins
			 * via bank name won't work.
			 */
			plat->name = ofnode_get_name(node);
		}

		ret = device_bind(dev, dev->driver, plat->name,
				  plat, -1, &subdev);
		if (ret)
			return ret;

		dev->node = node;
		bank++;
	}

	return 0;
}

Example #2

File: read.c Project: danielschwierzeck/u-boot-lantiq

int dev_read_string_index(struct udevice *dev, const char *propname, int index,
			  const char **outp)
{
	return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp);
}