Lines Matching refs:gpio

8 #include <linux/gpio/driver.h>
9 #include <linux/gpio/regmap.h>
27 	int (*reg_mask_xlate)(struct gpio_regmap *gpio, unsigned int base,
42 static int gpio_regmap_simple_xlate(struct gpio_regmap *gpio,
46 	unsigned int line = offset % gpio->ngpio_per_reg;
47 	unsigned int stride = offset / gpio->ngpio_per_reg;
49 	*reg = base + stride * gpio->reg_stride;
57 	struct gpio_regmap *gpio = gpiochip_get_data(chip);
62 	if (gpio->reg_dat_base)
63 		base = gpio_regmap_addr(gpio->reg_dat_base);
65 		base = gpio_regmap_addr(gpio->reg_set_base);
67 	ret = gpio->reg_mask_xlate(gpio, base, offset, &reg, &mask);
71 	ret = regmap_read(gpio->regmap, reg, &val);
81 	struct gpio_regmap *gpio = gpiochip_get_data(chip);
82 	unsigned int base = gpio_regmap_addr(gpio->reg_set_base);
85 	gpio->reg_mask_xlate(gpio, base, offset, &reg, &mask);
87 		regmap_update_bits(gpio->regmap, reg, mask, mask);
89 		regmap_update_bits(gpio->regmap, reg, mask, 0);
95 	struct gpio_regmap *gpio = gpiochip_get_data(chip);
99 		base = gpio_regmap_addr(gpio->reg_set_base);
101 		base = gpio_regmap_addr(gpio->reg_clr_base);
103 	gpio->reg_mask_xlate(gpio, base, offset, &reg, &mask);
104 	regmap_write(gpio->regmap, reg, mask);
110 	struct gpio_regmap *gpio = gpiochip_get_data(chip);
114 	if (gpio->reg_dir_out_base) {
115 		base = gpio_regmap_addr(gpio->reg_dir_out_base);
117 	} else if (gpio->reg_dir_in_base) {
118 		base = gpio_regmap_addr(gpio->reg_dir_in_base);
124 	ret = gpio->reg_mask_xlate(gpio, base, offset, &reg, &mask);
128 	ret = regmap_read(gpio->regmap, reg, &val);
141 	struct gpio_regmap *gpio = gpiochip_get_data(chip);
145 	if (gpio->reg_dir_out_base) {
146 		base = gpio_regmap_addr(gpio->reg_dir_out_base);
148 	} else if (gpio->reg_dir_in_base) {
149 		base = gpio_regmap_addr(gpio->reg_dir_in_base);
155 	ret = gpio->reg_mask_xlate(gpio, base, offset, &reg, &mask);
164 	return regmap_update_bits(gpio->regmap, reg, mask, val);
181 void gpio_regmap_set_drvdata(struct gpio_regmap *gpio, void *data)
183 	gpio->driver_data = data;
187 void *gpio_regmap_get_drvdata(struct gpio_regmap *gpio)
189 	return gpio->driver_data;
201 	struct gpio_regmap *gpio;
224 	gpio = kzalloc(sizeof(*gpio), GFP_KERNEL);
225 	if (!gpio)
228 	gpio->parent = config->parent;
229 	gpio->regmap = config->regmap;
230 	gpio->ngpio_per_reg = config->ngpio_per_reg;
231 	gpio->reg_stride = config->reg_stride;
232 	gpio->reg_mask_xlate = config->reg_mask_xlate;
233 	gpio->reg_dat_base = config->reg_dat_base;
234 	gpio->reg_set_base = config->reg_set_base;
235 	gpio->reg_clr_base = config->reg_clr_base;
236 	gpio->reg_dir_in_base = config->reg_dir_in_base;
237 	gpio->reg_dir_out_base = config->reg_dir_out_base;
240 	if (!gpio->ngpio_per_reg)
241 		gpio->ngpio_per_reg = config->ngpio;
244 	if (!gpio->reg_stride)
245 		gpio->reg_stride = 1;
247 	if (!gpio->reg_mask_xlate)
248 		gpio->reg_mask_xlate = gpio_regmap_simple_xlate;
250 	chip = &gpio->gpio_chip;
267 	if (gpio->reg_set_base && gpio->reg_clr_base)
269 	else if (gpio->reg_set_base)
272 	if (gpio->reg_dir_in_base || gpio->reg_dir_out_base) {
278 	ret = gpiochip_add_data(chip, gpio);
288 	return gpio;
293 	kfree(gpio);
300  * @gpio: gpio_regmap device to unregister
302 void gpio_regmap_unregister(struct gpio_regmap *gpio)
304 	gpiochip_remove(&gpio->gpio_chip);
305 	kfree(gpio);
328 	struct gpio_regmap **ptr, *gpio;
335 	gpio = gpio_regmap_register(config);
336 	if (!IS_ERR(gpio)) {
337 		*ptr = gpio;
343 	return gpio;