1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
70 	rv = ofw_bus_parse_xref_list_alloc(cnode, prop_name, "#gpio-cells",  in gpio_pin_get_by_ofw_propidx()
112 	return (gpio_pin_get_by_ofw_propidx(consumer, node, "gpios", idx, pin));  in gpio_pin_get_by_ofw_idx()
132 	rv = ofw_bus_find_string_index(node, "gpio-names", name, &idx);  in gpio_pin_get_by_ofw_name()
174 	devi = &dinfo->opd_dinfo;  in ofw_gpiobus_add_fdt_child()
175 	for (i = 0; i < devi->npins; i++)  in ofw_gpiobus_add_fdt_child()
176 		GPIOBUS_PIN_SETNAME(bus, devi->pins[i],  in ofw_gpiobus_add_fdt_child()
197 	if (node != -1)  in ofw_gpiobus_register_provider()
207 	if (node != -1)  in ofw_gpiobus_unregister_provider()
224 	if (ofw_bus_gen_setup_devinfo(&dinfo->opd_obdinfo, node) != 0) {  in ofw_gpiobus_setup_devinfo()
228 	/* Parse the gpios property for the child. */  in ofw_gpiobus_setup_devinfo()
229 	npins = ofw_gpiobus_parse_gpios_impl(child, node, "gpios", sc, &pins);  in ofw_gpiobus_setup_devinfo()
231 		ofw_bus_gen_destroy_devinfo(&dinfo->opd_obdinfo);  in ofw_gpiobus_setup_devinfo()
236 	resource_list_init(&dinfo->opd_dinfo.rl);  in ofw_gpiobus_setup_devinfo()
237 	/* Allocate the child ivars and copy the parsed pin data. */  in ofw_gpiobus_setup_devinfo()
238 	devi = &dinfo->opd_dinfo;  in ofw_gpiobus_setup_devinfo()
239 	devi->npins = (uint32_t)npins;  in ofw_gpiobus_setup_devinfo()
245 	for (i = 0; i < devi->npins; i++)  in ofw_gpiobus_setup_devinfo()
246 		devi->pins[i] = pins[i].pin;  in ofw_gpiobus_setup_devinfo()
249 	if (ofw_bus_intr_to_rl(bus, node, &dinfo->opd_dinfo.rl, NULL) != 0) {  in ofw_gpiobus_setup_devinfo()
266 	devi = &dinfo->opd_dinfo;  in ofw_gpiobus_destroy_devinfo()
267 	for (i = 0; i < devi->npins; i++) {  in ofw_gpiobus_destroy_devinfo()
268 		if (devi->pins[i] > sc->sc_npins)  in ofw_gpiobus_destroy_devinfo()
270 		sc->sc_pins[devi->pins[i]].mapped = 0;  in ofw_gpiobus_destroy_devinfo()
273 	resource_list_free(&dinfo->opd_dinfo.rl);  in ofw_gpiobus_destroy_devinfo()
274 	ofw_bus_gen_destroy_devinfo(&dinfo->opd_obdinfo);  in ofw_gpiobus_destroy_devinfo()
283 	pcell_t *gpios;  in ofw_gpiobus_parse_gpios_impl()  local
286 	ncells = OF_getencprop_alloc_multi(cnode, pname, sizeof(*gpios),  in ofw_gpiobus_parse_gpios_impl()
287             (void **)&gpios);  in ofw_gpiobus_parse_gpios_impl()
288 	if (ncells == -1) {  in ofw_gpiobus_parse_gpios_impl()
290 		    "Warning: No %s specified in fdt data; "  in ofw_gpiobus_parse_gpios_impl()
292 		return (-1);  in ofw_gpiobus_parse_gpios_impl()
295 	 * The gpio-specifier is controller independent, the first pcell has  in ofw_gpiobus_parse_gpios_impl()
297 	 * Count the number of encoded gpio-specifiers on the first pass.  in ofw_gpiobus_parse_gpios_impl()
303 		if (gpios[i] == 0) {  in ofw_gpiobus_parse_gpios_impl()
308 		gpio = OF_node_from_xref(gpios[i]);  in ofw_gpiobus_parse_gpios_impl()
309 		/* If we have bussc, ignore devices from other gpios. */  in ofw_gpiobus_parse_gpios_impl()
311 			if (ofw_bus_get_node(bussc->sc_dev) != gpio)  in ofw_gpiobus_parse_gpios_impl()
314 		 * Check for gpio-controller property and read the #gpio-cells  in ofw_gpiobus_parse_gpios_impl()
317 		if (!OF_hasprop(gpio, "gpio-controller") ||  in ofw_gpiobus_parse_gpios_impl()
318 		    OF_getencprop(gpio, "#gpio-cells", &gpiocells,  in ofw_gpiobus_parse_gpios_impl()
321 			    "gpio reference is not a gpio-controller.\n");  in ofw_gpiobus_parse_gpios_impl()
322 			OF_prop_free(gpios);  in ofw_gpiobus_parse_gpios_impl()
323 			return (-1);  in ofw_gpiobus_parse_gpios_impl()
325 		if (ncells - i < gpiocells + 1) {  in ofw_gpiobus_parse_gpios_impl()
327 			    "%s cells doesn't match #gpio-cells.\n", pname);  in ofw_gpiobus_parse_gpios_impl()
328 			return (-1);  in ofw_gpiobus_parse_gpios_impl()
337 		OF_prop_free(gpios);  in ofw_gpiobus_parse_gpios_impl()
343 		OF_prop_free(gpios);  in ofw_gpiobus_parse_gpios_impl()
344 		return (-1);  in ofw_gpiobus_parse_gpios_impl()
351 		if (gpios[i] == 0) {  in ofw_gpiobus_parse_gpios_impl()
356 		gpio = OF_node_from_xref(gpios[i]);  in ofw_gpiobus_parse_gpios_impl()
357 		/* Read gpio-cells property for this GPIO controller. */  in ofw_gpiobus_parse_gpios_impl()
358 		if (OF_getencprop(gpio, "#gpio-cells", &gpiocells,  in ofw_gpiobus_parse_gpios_impl()
361 			    "gpio does not have the #gpio-cells property.\n");  in ofw_gpiobus_parse_gpios_impl()
365 		(*pins)[j].dev = OF_device_from_xref(gpios[i]);  in ofw_gpiobus_parse_gpios_impl()
387 		    &gpios[i + 1], &(*pins)[j].pin, &(*pins)[j].flags) != 0) {  in ofw_gpiobus_parse_gpios_impl()
389 			    "cannot map the gpios specifier.\n");  in ofw_gpiobus_parse_gpios_impl()
393 		if (gpiobus_acquire_pin(bussc->sc_busdev, (*pins)[j].pin) != 0)  in ofw_gpiobus_parse_gpios_impl()
398 	OF_prop_free(gpios);  in ofw_gpiobus_parse_gpios_impl()
403 	OF_prop_free(gpios);  in ofw_gpiobus_parse_gpios_impl()
405 	return (-1);  in ofw_gpiobus_parse_gpios_impl()
412 	if (ofw_bus_get_node(dev) == -1)  in ofw_gpiobus_probe()
435 		if (OF_hasprop(child, "gpio-hog"))  in ofw_gpiobus_attach()
437 		if (!OF_hasprop(child, "gpios"))  in ofw_gpiobus_attach()
464 	 * NULL all the OFW-related parts of the ivars for non-OFW  in ofw_gpiobus_add_child()
467 	devi->opd_obdinfo.obd_node = -1;  in ofw_gpiobus_add_child()
468 	devi->opd_obdinfo.obd_name = NULL;  in ofw_gpiobus_add_child()
469 	devi->opd_obdinfo.obd_compat = NULL;  in ofw_gpiobus_add_child()
470 	devi->opd_obdinfo.obd_type = NULL;  in ofw_gpiobus_add_child()
471 	devi->opd_obdinfo.obd_model = NULL;  in ofw_gpiobus_add_child()
485 	return (&dinfo->opd_obdinfo);  in ofw_gpiobus_get_devinfo()