1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
33 #include <sys/gpio.h>
108 	struct syscon		*grf;  member
114 #define	RK_PINCTRL_LOCK(_sc)		mtx_lock_spin(&(_sc)->mtx)
115 #define	RK_PINCTRL_UNLOCK(_sc)		mtx_unlock_spin(&(_sc)->mtx)
116 #define	RK_PINCTRL_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->mtx, MA_OWNED)
181 	/* 5,0 - Empty */
184 	/* 5,3 - Empty */
188 	/* 6,3 - Empty */
192 	/* 7,3 - Empty */
195 	/* 8,2 - Empty */
196 	/* 8,3 - Empty */
374 		return (sc->pmu);  in rk3288_get_syscon()
375 	return (sc->grf);  in rk3288_get_syscon()
381 	if (OF_hasprop(node, "bias-disable"))  in rk3288_parse_bias()
383 	if (OF_hasprop(node, "bias-pull-up"))  in rk3288_parse_bias()
385 	if (OF_hasprop(node, "bias-pull-down"))  in rk3288_parse_bias()
388 	return (-1);  in rk3288_parse_bias()
559 	return (sc->grf);  in rk3328_get_syscon()
664 		return (sc->pmu);  in rk3399_get_syscon()
666 	return (sc->grf);  in rk3399_get_syscon()
674 	if (OF_hasprop(node, "bias-disable"))  in rk3399_parse_bias()
691 	if (OF_hasprop(node, "bias-pull-up"))  in rk3399_parse_bias()
693 	if (OF_hasprop(node, "bias-pull-down"))  in rk3399_parse_bias()
696 	return (-1);  in rk3399_parse_bias()
948 		return (sc->grf);  in rk3568_get_syscon()
950 		return (sc->pmu);  in rk3568_get_syscon()
957 	if (OF_hasprop(node, "bias-disable"))  in rk3568_parse_bias()
959 	if (OF_hasprop(node, "bias-pull-up"))  in rk3568_parse_bias()
961 	if (OF_hasprop(node, "bias-pull-down"))  in rk3568_parse_bias()
963 	return (-1);  in rk3568_parse_bias()
1005 	{"rockchip,rk3288-pinctrl", (uintptr_t)&rk3288_conf},
1006 	{"rockchip,rk3328-pinctrl", (uintptr_t)&rk3328_conf},
1007 	{"rockchip,rk3399-pinctrl", (uintptr_t)&rk3399_conf},
1008 	{"rockchip,rk3568-pinctrl", (uintptr_t)&rk3568_conf},
1019 	if (OF_getencprop(node, "drive-strength", &value,  in rk_pinctrl_parse_drive()
1021 		return (-1);  in rk_pinctrl_parse_drive()
1024 	for (i = 0; i < sc->conf->npin_drive; i++) {  in rk_pinctrl_parse_drive()
1025 		if (sc->conf->pin_drive[i].bank != bank &&  in rk_pinctrl_parse_drive()
1026 		    sc->conf->pin_drive[i].subbank != subbank)  in rk_pinctrl_parse_drive()
1028 		if (sc->conf->pin_drive[i].ma == value) {  in rk_pinctrl_parse_drive()
1029 			*drive = sc->conf->pin_drive[i].value;  in rk_pinctrl_parse_drive()
1034 	return (-1);  in rk_pinctrl_parse_drive()
1043 	for (i = 0; i < sc->conf->npin_fixup; i++)  in rk_pinctrl_get_fixup()
1044 		if (sc->conf->pin_fixup[i].bank == bank &&  in rk_pinctrl_get_fixup()
1045 		    sc->conf->pin_fixup[i].pin == pin) {  in rk_pinctrl_get_fixup()
1046 			*reg = sc->conf->pin_fixup[i].reg;  in rk_pinctrl_get_fixup()
1047 			*mask = sc->conf->pin_fixup[i].mask;  in rk_pinctrl_get_fixup()
1048 			*bit = sc->conf->pin_fixup[i].bit;  in rk_pinctrl_get_fixup()
1060 	struct rk_pinctrl_gpio *gpio;  in rk_pinctrl_handle_io()  local
1067 	/* Get (subset of) GPIO pin properties. */  in rk_pinctrl_handle_io()
1068 	if (OF_hasprop(node, "output-disable")) {  in rk_pinctrl_handle_io()
1074 	if (OF_hasprop(node, "output-enable")) {  in rk_pinctrl_handle_io()
1080 	if (OF_hasprop(node, "output-low")) {  in rk_pinctrl_handle_io()
1088 	if (OF_hasprop(node, "output-high")) {  in rk_pinctrl_handle_io()
1099 	/* Find gpio */  in rk_pinctrl_handle_io()
1100 	gpio = NULL;  in rk_pinctrl_handle_io()
1101 	for(i = 0; i < sc->conf->ngpio_bank; i++) {  in rk_pinctrl_handle_io()
1102 		if (bank ==  sc->conf->gpio_bank[i].bank) {  in rk_pinctrl_handle_io()
1103 			gpio = sc->conf->gpio_bank + i;  in rk_pinctrl_handle_io()
1107 	if (gpio == NULL) {  in rk_pinctrl_handle_io()
1108 		device_printf(sc->dev, "Cannot find GPIO bank %d\n", bank);  in rk_pinctrl_handle_io()
1111 	if (gpio->gpio_dev == NULL) {  in rk_pinctrl_handle_io()
1112 		device_printf(sc->dev,  in rk_pinctrl_handle_io()
1113 		    "No GPIO subdevice found for bank %d\n", bank);  in rk_pinctrl_handle_io()
1119 		rv = GPIO_PIN_SET(gpio->gpio_dev, pin, pin_value);  in rk_pinctrl_handle_io()
1121 			device_printf(sc->dev, "Cannot set GPIO value: %d\n",  in rk_pinctrl_handle_io()
1128 		rv = GPIO_PIN_SETFLAGS(gpio->gpio_dev, pin, direction_value);  in rk_pinctrl_handle_io()
1130 			device_printf(sc->dev,  in rk_pinctrl_handle_io()
1131 			    "Cannot set GPIO direction: %d\n", rv);  in rk_pinctrl_handle_io()
1154 	for (i = 0; i < sc->conf->iomux_nbanks; i++)  in rk_pinctrl_configure_pin()
1155 		if (sc->conf->iomux_conf[i].bank == bank &&  in rk_pinctrl_configure_pin()
1156 		    sc->conf->iomux_conf[i].subbank == subbank)  in rk_pinctrl_configure_pin()
1159 	if (i == sc->conf->iomux_nbanks) {  in rk_pinctrl_configure_pin()
1160 		device_printf(sc->dev, "Unknown pin %d in bank %d\n", pin,  in rk_pinctrl_configure_pin()
1166 	syscon = sc->conf->get_syscon(sc, bank);  in rk_pinctrl_configure_pin()
1168 	/* Setup GPIO properties first */  in rk_pinctrl_configure_pin()
1171 	/* Then pin pull-up/down */  in rk_pinctrl_configure_pin()
1172 	bias = sc->conf->parse_bias(pin_conf, bank);  in rk_pinctrl_configure_pin()
1174 		reg = sc->conf->get_pd_offset(sc, bank);  in rk_pinctrl_configure_pin()
1182 	if (ofw_bus_node_is_compatible(ofw_bus_get_node(sc->dev),  in rk_pinctrl_configure_pin()
1183 	    "rockchip,rk3568-pinctrl")) {  in rk_pinctrl_configure_pin()
1185 		if (OF_getencprop(pin_conf, "drive-strength", &value,  in rk_pinctrl_configure_pin()
1192 			drive = ((1 << (value + 1)) - 1) << (pin % 2);  in rk_pinctrl_configure_pin()
1210 	reg = sc->conf->iomux_conf[i].offset;  in rk_pinctrl_configure_pin()
1211 	switch (sc->conf->iomux_conf[i].nbits) {  in rk_pinctrl_configure_pin()
1229 		device_printf(sc->dev,  in rk_pinctrl_configure_pin()
1231 		    sc->conf->iomux_conf[i].nbits, bank);  in rk_pinctrl_configure_pin()
1237 	 * NOTE: not all syscon registers uses hi-word write mask, thus  in rk_pinctrl_configure_pin()
1240 	 * without hi-word write mask.  in rk_pinctrl_configure_pin()
1245 	if (ofw_bus_node_is_compatible(ofw_bus_get_node(sc->dev),  in rk_pinctrl_configure_pin()
1246 	    "rockchip,rk3568-pinctrl")) {  in rk_pinctrl_configure_pin()
1248 			SYSCON_WRITE_4(sc->grf,  in rk_pinctrl_configure_pin()
1251 			SYSCON_WRITE_4(sc->grf,  in rk_pinctrl_configure_pin()
1291 	for (i = 0; i < sc->conf->iomux_nbanks; i++)  in rk_pinctrl_is_gpio_locked()
1292 		if (sc->conf->iomux_conf[i].bank == bank &&  in rk_pinctrl_is_gpio_locked()
1293 		    sc->conf->iomux_conf[i].subbank == subbank)  in rk_pinctrl_is_gpio_locked()
1296 	if (i == sc->conf->iomux_nbanks) {  in rk_pinctrl_is_gpio_locked()
1297 		device_printf(sc->dev, "Unknown pin %d in bank %d\n", pin,  in rk_pinctrl_is_gpio_locked()
1302 	syscon = sc->conf->get_syscon(sc, bank);  in rk_pinctrl_is_gpio_locked()
1305 	reg = sc->conf->iomux_conf[i].offset;  in rk_pinctrl_is_gpio_locked()
1306 	switch (sc->conf->iomux_conf[i].nbits) {  in rk_pinctrl_is_gpio_locked()
1324 		device_printf(sc->dev,  in rk_pinctrl_is_gpio_locked()
1326 		    sc->conf->iomux_conf[i].nbits, bank);  in rk_pinctrl_is_gpio_locked()
1334 	/* Test if the pin is in gpio mode */  in rk_pinctrl_is_gpio_locked()
1342 rk_pinctrl_get_bank(struct rk_pinctrl_softc *sc, device_t gpio, int *bank)  in rk_pinctrl_get_bank()  argument
1346 	for (i = 0; i < sc->conf->ngpio_bank; i++) {  in rk_pinctrl_get_bank()
1347 		if (sc->conf->gpio_bank[i].gpio_dev == gpio)  in rk_pinctrl_get_bank()
1350 	if (i == sc->conf->ngpio_bank)  in rk_pinctrl_get_bank()
1358 rk_pinctrl_is_gpio(device_t pinctrl, device_t gpio, uint32_t pin, bool *is_gpio)  in rk_pinctrl_is_gpio()  argument
1368 	rv = rk_pinctrl_get_bank(sc, gpio, &bank);  in rk_pinctrl_is_gpio()
1371 	syscon = sc->conf->get_syscon(sc, bank);  in rk_pinctrl_is_gpio()
1381 rk_pinctrl_get_flags(device_t pinctrl, device_t gpio, uint32_t pin,  in rk_pinctrl_get_flags()  argument
1395 	rv = rk_pinctrl_get_bank(sc, gpio, &bank);  in rk_pinctrl_get_flags()
1398 	syscon = sc->conf->get_syscon(sc, bank);  in rk_pinctrl_get_flags()
1407 	reg = sc->conf->get_pd_offset(sc, bank);  in rk_pinctrl_get_flags()
1412 	bias = sc->conf->resolv_bias_value(bank, reg);  in rk_pinctrl_get_flags()
1421 rk_pinctrl_set_flags(device_t pinctrl, device_t gpio, uint32_t pin,  in rk_pinctrl_set_flags()  argument
1435 	rv = rk_pinctrl_get_bank(sc, gpio, &bank);  in rk_pinctrl_set_flags()
1438 	syscon = sc->conf->get_syscon(sc, bank);  in rk_pinctrl_set_flags()
1447 	reg = sc->conf->get_pd_offset(sc, bank);  in rk_pinctrl_set_flags()
1451 	bias = sc->conf->get_bias_value(bank, flags);  in rk_pinctrl_set_flags()
1466 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in rk_pinctrl_probe()
1482 	sc->dev = dev;  in rk_pinctrl_attach()
1486 	if (OF_hasprop(node, "rockchip,grf") &&  in rk_pinctrl_attach()
1488 	    "rockchip,grf", &sc->grf) != 0) {  in rk_pinctrl_attach()
1489 		device_printf(dev, "cannot get grf driver handle\n");  in rk_pinctrl_attach()
1493 	/* RK3568,RK3399,RK3288 have banks in PMU. RK3328 doesn't have a PMU. */  in rk_pinctrl_attach()
1494 	if (ofw_bus_node_is_compatible(node, "rockchip,rk3568-pinctrl") ||  in rk_pinctrl_attach()
1495 	    ofw_bus_node_is_compatible(node, "rockchip,rk3399-pinctrl") ||  in rk_pinctrl_attach()
1496 	    ofw_bus_node_is_compatible(node, "rockchip,rk3288-pinctrl")) {  in rk_pinctrl_attach()
1499 		    "rockchip,pmu", &sc->pmu) != 0) {  in rk_pinctrl_attach()
1505 	mtx_init(&sc->mtx, "rk pinctrl", "pinctrl", MTX_SPIN);  in rk_pinctrl_attach()
1507 	sc->conf = (struct rk_pinctrl_conf *)ofw_bus_search_compatible(dev,  in rk_pinctrl_attach()
1508 	    compat_data)->ocd_data;  in rk_pinctrl_attach()
1519 		if (!ofw_bus_node_is_compatible(node, "rockchip,gpio-bank"))  in rk_pinctrl_attach()
1521 		cdev = simplebus_add_device(dev, node, 0, NULL, -1, NULL);  in rk_pinctrl_attach()
1523 			device_printf(dev, " Cannot add GPIO subdevice\n");  in rk_pinctrl_attach()
1529 			device_printf(sc->dev,  in rk_pinctrl_attach()
1530 			    "Cannot attach GPIO subdevice\n");  in rk_pinctrl_attach()
1534 		sc->conf->gpio_bank[gpio_unit].gpio_dev = cdev;  in rk_pinctrl_attach()