1 // SPDX-License-Identifier: GPL-2.0-or-later
27 static int arizona_gpio_direction_in(struct gpio_chip *chip, unsigned offset)  in arizona_gpio_direction_in()  argument
30 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_direction_in()
31 	bool persistent = gpiochip_line_is_persistent(chip, offset);  in arizona_gpio_direction_in()
35 	ret = regmap_update_bits_check(arizona->regmap,  in arizona_gpio_direction_in()
36 				       ARIZONA_GPIO1_CTRL + offset,  in arizona_gpio_direction_in()
43 		pm_runtime_mark_last_busy(chip->parent);  in arizona_gpio_direction_in()
44 		pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_direction_in()
50 static int arizona_gpio_get(struct gpio_chip *chip, unsigned offset)  in arizona_gpio_get()  argument
53 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_get()
57 	reg = ARIZONA_GPIO1_CTRL + offset;  in arizona_gpio_get()
58 	ret = regmap_read(arizona->regmap, reg, &val);  in arizona_gpio_get()
62 	/* Resume to read actual registers for input pins */  in arizona_gpio_get()
64 		ret = pm_runtime_get_sync(chip->parent);  in arizona_gpio_get()
66 			dev_err(chip->parent, "Failed to resume: %d\n", ret);  in arizona_gpio_get()
67 			pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
72 		ret = regcache_drop_region(arizona->regmap, reg, reg);  in arizona_gpio_get()
74 			dev_err(chip->parent, "Failed to drop cache: %d\n",  in arizona_gpio_get()
76 			pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
80 		ret = regmap_read(arizona->regmap, reg, &val);  in arizona_gpio_get()
82 			pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
86 		pm_runtime_mark_last_busy(chip->parent);  in arizona_gpio_get()
87 		pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
97 				     unsigned offset, int value)  in arizona_gpio_direction_out()  argument
100 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_direction_out()
101 	bool persistent = gpiochip_line_is_persistent(chip, offset);  in arizona_gpio_direction_out()
105 	ret = regmap_read(arizona->regmap, ARIZONA_GPIO1_CTRL + offset, &val);  in arizona_gpio_direction_out()
110 		ret = pm_runtime_get_sync(chip->parent);  in arizona_gpio_direction_out()
112 			dev_err(chip->parent, "Failed to resume: %d\n", ret);  in arizona_gpio_direction_out()
113 			pm_runtime_put(chip->parent);  in arizona_gpio_direction_out()
121 	return regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset,  in arizona_gpio_direction_out()
125 static void arizona_gpio_set(struct gpio_chip *chip, unsigned offset, int value)  in arizona_gpio_set()  argument
128 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_set()
133 	regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset,  in arizona_gpio_set()
149 	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);  in arizona_gpio_probe()
150 	struct arizona_pdata *pdata = &arizona->pdata;  in arizona_gpio_probe()
154 	arizona_gpio = devm_kzalloc(&pdev->dev, sizeof(*arizona_gpio),  in arizona_gpio_probe()
157 		return -ENOMEM;  in arizona_gpio_probe()
159 	arizona_gpio->arizona = arizona;  in arizona_gpio_probe()
160 	arizona_gpio->gpio_chip = template_chip;  in arizona_gpio_probe()
161 	arizona_gpio->gpio_chip.parent = &pdev->dev;  in arizona_gpio_probe()
163 	arizona_gpio->gpio_chip.of_node = arizona->dev->of_node;  in arizona_gpio_probe()
166 	switch (arizona->type) {  in arizona_gpio_probe()
173 		arizona_gpio->gpio_chip.ngpio = 5;  in arizona_gpio_probe()
177 		arizona_gpio->gpio_chip.ngpio = 2;  in arizona_gpio_probe()
180 		dev_err(&pdev->dev, "Unknown chip variant %d\n",  in arizona_gpio_probe()
181 			arizona->type);  in arizona_gpio_probe()
182 		return -EINVAL;  in arizona_gpio_probe()
185 	if (pdata->gpio_base)  in arizona_gpio_probe()
186 		arizona_gpio->gpio_chip.base = pdata->gpio_base;  in arizona_gpio_probe()
188 		arizona_gpio->gpio_chip.base = -1;  in arizona_gpio_probe()
190 	pm_runtime_enable(&pdev->dev);  in arizona_gpio_probe()
192 	ret = devm_gpiochip_add_data(&pdev->dev, &arizona_gpio->gpio_chip,  in arizona_gpio_probe()
195 		pm_runtime_disable(&pdev->dev);  in arizona_gpio_probe()
196 		dev_err(&pdev->dev, "Could not register gpiochip, %d\n",  in arizona_gpio_probe()
205 	.driver.name	= "arizona-gpio",
214 MODULE_ALIAS("platform:arizona-gpio");