1 // SPDX-License-Identifier: GPL-2.0+
9 #include <asm/gpio.h>
13 static int hi6220_gpio_direction_input(struct udevice *dev, unsigned int gpio)  in hi6220_gpio_direction_input()  argument
15 	struct gpio_bank *bank = dev_get_priv(dev);  in hi6220_gpio_direction_input()  local
18 	data = readb(bank->base + HI6220_GPIO_DIR);  in hi6220_gpio_direction_input()
19 	data &= ~(1 << gpio);  in hi6220_gpio_direction_input()
20 	writeb(data, bank->base + HI6220_GPIO_DIR);  in hi6220_gpio_direction_input()
25 static int hi6220_gpio_set_value(struct udevice *dev, unsigned gpio,  in hi6220_gpio_set_value()  argument
28 	struct gpio_bank *bank = dev_get_priv(dev);  in hi6220_gpio_set_value()  local
30 	writeb(!!value << gpio, bank->base + (BIT(gpio + 2)));  in hi6220_gpio_set_value()
34 static int hi6220_gpio_direction_output(struct udevice *dev, unsigned gpio,  in hi6220_gpio_direction_output()  argument
37 	struct gpio_bank *bank = dev_get_priv(dev);  in hi6220_gpio_direction_output()  local
40 	data = readb(bank->base + HI6220_GPIO_DIR);  in hi6220_gpio_direction_output()
41 	data |= 1 << gpio;  in hi6220_gpio_direction_output()
42 	writeb(data, bank->base + HI6220_GPIO_DIR);  in hi6220_gpio_direction_output()
44 	hi6220_gpio_set_value(dev, gpio, value);  in hi6220_gpio_direction_output()
49 static int hi6220_gpio_get_value(struct udevice *dev, unsigned gpio)  in hi6220_gpio_get_value()  argument
51 	struct gpio_bank *bank = dev_get_priv(dev);  in hi6220_gpio_get_value()  local
53 	return !!readb(bank->base + (BIT(gpio + 2)));  in hi6220_gpio_get_value()
67 	struct gpio_bank *bank = dev_get_priv(dev);  in hi6220_gpio_probe()  local
69 	struct gpio_dev_priv *uc_priv = dev->uclass_priv;  in hi6220_gpio_probe()
72 	sprintf(name, "GPIO%d_", plat->bank_index);  in hi6220_gpio_probe()
76 		return -ENOMEM;  in hi6220_gpio_probe()
78 	uc_priv->bank_name = str;  in hi6220_gpio_probe()
79 	uc_priv->gpio_count = HI6220_GPIO_PER_BANK;  in hi6220_gpio_probe()
81 	bank->base = (u8 *)plat->base;  in hi6220_gpio_probe()