Function rk_pinctrl_attach

freebsd/arm64/rockchip/rk_pinctrl.c:1223–1317

}

static int
rk_pinctrl_attach(device_t dev)
{
	struct rk_pinctrl_softc *sc;
	phandle_t node;
	device_t cdev;
	char *gpio_name, *eptr;
	int rv;

	sc = device_get_softc(dev);
	sc->dev = dev;

	node = ofw_bus_get_node(dev);

	if (OF_hasprop(node, "rockchip,grf") &&
	    syscon_get_by_ofw_property(dev, node,
	    "rockchip,grf", &sc->grf) != 0) {
		device_printf(dev, "cannot get grf driver handle\n");
		return (ENXIO);
	}

	/* RK3399,RK3288 has banks in PMU. RK3328 does not have a PMU. */
	if (ofw_bus_node_is_compatible(node, "rockchip,rk3399-pinctrl") ||
	    ofw_bus_node_is_compatible(node, "rockchip,rk3288-pinctrl")) {
		if (OF_hasprop(node, "rockchip,pmu") &&
		    syscon_get_by_ofw_property(dev, node,
		    "rockchip,pmu", &sc->pmu) != 0) {
			device_printf(dev, "cannot get pmu driver handle\n");
			return (ENXIO);
		}
	}

	mtx_init(&sc->mtx, "rk pinctrl", "pinctrl", MTX_SPIN);

	sc->conf = (struct rk_pinctrl_conf *)ofw_bus_search_compatible(dev,
	    compat_data)->ocd_data;

	fdt_pinctrl_register(dev, "rockchip,pins");

	simplebus_init(dev, node);

	bus_generic_probe(dev);

	/* Attach child devices */
	for (node = OF_child(node); node > 0; node = OF_peer(node)) {
		if (!ofw_bus_node_is_compatible(node, "rockchip,gpio-bank"))
			continue;

		rv = OF_getprop_alloc(node, "name", (void **)&gpio_name);
		if (rv <= 0) {
			device_printf(sc->dev, "Cannot GPIO subdevice name.\n");
			continue;
		}

		cdev = simplebus_add_device(dev, node, 0, NULL, -1, NULL);
		if (cdev == NULL) {
			device_printf(dev, " Cannot add GPIO subdevice: %s\n",
			    gpio_name);