44 static inline void loongson_commit_direction(struct loongson_gpio_chip *lgpio, unsigned int pin,  in loongson_commit_direction()  argument
49 	writeb(bval, lgpio->reg_base + lgpio->chip_data->conf_offset + pin);  in loongson_commit_direction()
52 static void loongson_commit_level(struct loongson_gpio_chip *lgpio, unsigned int pin, int high)  in loongson_commit_level()  argument
56 	writeb(bval, lgpio->reg_base + lgpio->chip_data->out_offset + pin);  in loongson_commit_level()
62 	struct loongson_gpio_chip *lgpio = to_loongson_gpio_chip(chip);  in loongson_gpio_direction_input()  local
64 	spin_lock_irqsave(&lgpio->lock, flags);  in loongson_gpio_direction_input()
65 	loongson_commit_direction(lgpio, pin, 1);  in loongson_gpio_direction_input()
66 	spin_unlock_irqrestore(&lgpio->lock, flags);  in loongson_gpio_direction_input()
74 	struct loongson_gpio_chip *lgpio = to_loongson_gpio_chip(chip);  in loongson_gpio_direction_output()  local
76 	spin_lock_irqsave(&lgpio->lock, flags);  in loongson_gpio_direction_output()
77 	loongson_commit_level(lgpio, pin, value);  in loongson_gpio_direction_output()
78 	loongson_commit_direction(lgpio, pin, 0);  in loongson_gpio_direction_output()
79 	spin_unlock_irqrestore(&lgpio->lock, flags);  in loongson_gpio_direction_output()
88 	struct loongson_gpio_chip *lgpio = to_loongson_gpio_chip(chip);  in loongson_gpio_get()  local
90 	bval = readb(lgpio->reg_base + lgpio->chip_data->in_offset + pin);  in loongson_gpio_get()
99 	struct loongson_gpio_chip *lgpio = to_loongson_gpio_chip(chip);  in loongson_gpio_get_direction()  local
101 	bval = readb(lgpio->reg_base + lgpio->chip_data->conf_offset + pin);  in loongson_gpio_get_direction()
111 	struct loongson_gpio_chip *lgpio = to_loongson_gpio_chip(chip);  in loongson_gpio_set()  local
113 	spin_lock_irqsave(&lgpio->lock, flags);  in loongson_gpio_set()
114 	loongson_commit_level(lgpio, pin, value);  in loongson_gpio_set()
115 	spin_unlock_irqrestore(&lgpio->lock, flags);  in loongson_gpio_set()
125 static int loongson_gpio_init(struct device *dev, struct loongson_gpio_chip *lgpio,  in loongson_gpio_init()  argument
131 	lgpio->reg_base = reg_base;  in loongson_gpio_init()
133 	if (lgpio->chip_data->mode == BIT_CTRL_MODE) {  in loongson_gpio_init()
134 		ret = bgpio_init(&lgpio->chip, dev, 8,  in loongson_gpio_init()
135 				lgpio->reg_base + lgpio->chip_data->in_offset,  in loongson_gpio_init()
136 				lgpio->reg_base + lgpio->chip_data->out_offset,  in loongson_gpio_init()
138 				lgpio->reg_base + lgpio->chip_data->conf_offset,  in loongson_gpio_init()
145 		lgpio->chip.direction_input = loongson_gpio_direction_input;  in loongson_gpio_init()
146 		lgpio->chip.get = loongson_gpio_get;  in loongson_gpio_init()
147 		lgpio->chip.get_direction = loongson_gpio_get_direction;  in loongson_gpio_init()
148 		lgpio->chip.direction_output = loongson_gpio_direction_output;  in loongson_gpio_init()
149 		lgpio->chip.set = loongson_gpio_set;  in loongson_gpio_init()
150 		lgpio->chip.parent = dev;  in loongson_gpio_init()
151 		spin_lock_init(&lgpio->lock);  in loongson_gpio_init()
156 	lgpio->chip.can_sleep = 0;  in loongson_gpio_init()
157 	lgpio->chip.ngpio = ngpios;  in loongson_gpio_init()
158 	lgpio->chip.label = lgpio->chip_data->label;  in loongson_gpio_init()
159 	lgpio->chip.to_irq = loongson_gpio_to_irq;  in loongson_gpio_init()
161 	return devm_gpiochip_add_data(dev, &lgpio->chip, lgpio);  in loongson_gpio_init()
167 	struct loongson_gpio_chip *lgpio;  in loongson_gpio_probe()  local
171 	lgpio = devm_kzalloc(dev, sizeof(*lgpio), GFP_KERNEL);  in loongson_gpio_probe()
172 	if (!lgpio)  in loongson_gpio_probe()
175 	lgpio->chip_data = device_get_match_data(dev);  in loongson_gpio_probe()
181 	return loongson_gpio_init(dev, lgpio, np, reg_base);  in loongson_gpio_probe()