1 // SPDX-License-Identifier: GPL-2.0+
5  * DesignWare APB GPIO driver
14 #include <dm/device-internal.h>
41 	fdt_addr_t	base;  member
48 	clrbits_le32(plat->base + GPIO_SWPORT_DDR(plat->bank), 1 << pin);  in dwapb_gpio_direction_input()
57 	setbits_le32(plat->base + GPIO_SWPORT_DDR(plat->bank), 1 << pin);  in dwapb_gpio_direction_output()
60 		setbits_le32(plat->base + GPIO_SWPORT_DR(plat->bank), 1 << pin);  in dwapb_gpio_direction_output()
62 		clrbits_le32(plat->base + GPIO_SWPORT_DR(plat->bank), 1 << pin);  in dwapb_gpio_direction_output()
70 	return !!(readl(plat->base + GPIO_EXT_PORT(plat->bank)) & (1 << pin));  in dwapb_gpio_get_value()
79 		setbits_le32(plat->base + GPIO_SWPORT_DR(plat->bank), 1 << pin);  in dwapb_gpio_set_value()
81 		clrbits_le32(plat->base + GPIO_SWPORT_DR(plat->bank), 1 << pin);  in dwapb_gpio_set_value()
91 	gpio = readl(plat->base + GPIO_SWPORT_DDR(plat->bank));  in dwapb_gpio_get_function()
112 	ret = reset_get_bulk(dev, &priv->resets);  in gpio_dwapb_reset()
117 		if (ret == -ENOENT || ret == -ENOTSUPP)  in gpio_dwapb_reset()
124 	ret = reset_deassert_bulk(&priv->resets);  in gpio_dwapb_reset()
126 		reset_release_bulk(&priv->resets);  in gpio_dwapb_reset()
137 	struct gpio_dwapb_platdata *plat = dev->platdata;  in gpio_dwapb_probe()
144 	priv->gpio_count = plat->pins;  in gpio_dwapb_probe()
145 	priv->bank_name = plat->name;  in gpio_dwapb_probe()
153 	const void *blob = gd->fdt_blob;  in gpio_dwapb_bind()
155 	fdt_addr_t base;  in gpio_dwapb_bind()  local
162 	base = dev_read_addr(dev);  in gpio_dwapb_bind()
163 	if (base == FDT_ADDR_T_NONE) {  in gpio_dwapb_bind()
164 		debug("Can't get the GPIO register base address\n");  in gpio_dwapb_bind()
165 		return -ENXIO;  in gpio_dwapb_bind()
171 		if (!fdtdec_get_bool(blob, node, "gpio-controller"))  in gpio_dwapb_bind()
176 			return -ENOMEM;  in gpio_dwapb_bind()
178 		plat->base = base;  in gpio_dwapb_bind()
179 		plat->bank = bank;  in gpio_dwapb_bind()
180 		plat->pins = fdtdec_get_int(blob, node, "snps,nr-gpios", 0);  in gpio_dwapb_bind()
181 		plat->name = fdt_stringlist_get(blob, node, "bank-name", 0,  in gpio_dwapb_bind()
183 		if (!plat->name) {  in gpio_dwapb_bind()
188 			plat->name = fdt_get_name(blob, node, NULL);  in gpio_dwapb_bind()
191 		ret = device_bind(dev, dev->driver, plat->name,  in gpio_dwapb_bind()
192 				  plat, -1, &subdev);  in gpio_dwapb_bind()
209 		return reset_release_bulk(&priv->resets);  in gpio_dwapb_remove()
215 	{ .compatible = "snps,dw-apb-gpio" },
220 	.name		= "gpio-dwapb",