1 // SPDX-License-Identifier: GPL-2.0-or-later
26 static int arizona_gpio_direction_in(struct gpio_chip *chip, unsigned offset)  in arizona_gpio_direction_in()  argument
29 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_direction_in()
30 	bool persistent = gpiochip_line_is_persistent(chip, offset);  in arizona_gpio_direction_in()
34 	ret = regmap_update_bits_check(arizona->regmap,  in arizona_gpio_direction_in()
35 				       ARIZONA_GPIO1_CTRL + offset,  in arizona_gpio_direction_in()
42 		pm_runtime_mark_last_busy(chip->parent);  in arizona_gpio_direction_in()
43 		pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_direction_in()
49 static int arizona_gpio_get(struct gpio_chip *chip, unsigned offset)  in arizona_gpio_get()  argument
52 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_get()
56 	reg = ARIZONA_GPIO1_CTRL + offset;  in arizona_gpio_get()
57 	ret = regmap_read(arizona->regmap, reg, &val);  in arizona_gpio_get()
61 	/* Resume to read actual registers for input pins */  in arizona_gpio_get()
63 		ret = pm_runtime_get_sync(chip->parent);  in arizona_gpio_get()
65 			dev_err(chip->parent, "Failed to resume: %d\n", ret);  in arizona_gpio_get()
66 			pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
71 		ret = regcache_drop_region(arizona->regmap, reg, reg);  in arizona_gpio_get()
73 			dev_err(chip->parent, "Failed to drop cache: %d\n",  in arizona_gpio_get()
75 			pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
79 		ret = regmap_read(arizona->regmap, reg, &val);  in arizona_gpio_get()
81 			pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
85 		pm_runtime_mark_last_busy(chip->parent);  in arizona_gpio_get()
86 		pm_runtime_put_autosuspend(chip->parent);  in arizona_gpio_get()
96 				     unsigned offset, int value)  in arizona_gpio_direction_out()  argument
99 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_direction_out()
100 	bool persistent = gpiochip_line_is_persistent(chip, offset);  in arizona_gpio_direction_out()
104 	ret = regmap_read(arizona->regmap, ARIZONA_GPIO1_CTRL + offset, &val);  in arizona_gpio_direction_out()
109 		ret = pm_runtime_get_sync(chip->parent);  in arizona_gpio_direction_out()
111 			dev_err(chip->parent, "Failed to resume: %d\n", ret);  in arizona_gpio_direction_out()
112 			pm_runtime_put(chip->parent);  in arizona_gpio_direction_out()
120 	return regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset,  in arizona_gpio_direction_out()
124 static void arizona_gpio_set(struct gpio_chip *chip, unsigned offset, int value)  in arizona_gpio_set()  argument
127 	struct arizona *arizona = arizona_gpio->arizona;  in arizona_gpio_set()
132 	regmap_update_bits(arizona->regmap, ARIZONA_GPIO1_CTRL + offset,  in arizona_gpio_set()
148 	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);  in arizona_gpio_probe()
149 	struct arizona_pdata *pdata = &arizona->pdata;  in arizona_gpio_probe()
153 	device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent));  in arizona_gpio_probe()
155 	arizona_gpio = devm_kzalloc(&pdev->dev, sizeof(*arizona_gpio),  in arizona_gpio_probe()
158 		return -ENOMEM;  in arizona_gpio_probe()
160 	arizona_gpio->arizona = arizona;  in arizona_gpio_probe()
161 	arizona_gpio->gpio_chip = template_chip;  in arizona_gpio_probe()
162 	arizona_gpio->gpio_chip.parent = &pdev->dev;  in arizona_gpio_probe()
164 	switch (arizona->type) {  in arizona_gpio_probe()
171 		arizona_gpio->gpio_chip.ngpio = 5;  in arizona_gpio_probe()
175 		arizona_gpio->gpio_chip.ngpio = 2;  in arizona_gpio_probe()
178 		dev_err(&pdev->dev, "Unknown chip variant %d\n",  in arizona_gpio_probe()
179 			arizona->type);  in arizona_gpio_probe()
180 		return -EINVAL;  in arizona_gpio_probe()
183 	if (pdata->gpio_base)  in arizona_gpio_probe()
184 		arizona_gpio->gpio_chip.base = pdata->gpio_base;  in arizona_gpio_probe()
186 		arizona_gpio->gpio_chip.base = -1;  in arizona_gpio_probe()
188 	pm_runtime_enable(&pdev->dev);  in arizona_gpio_probe()
190 	ret = devm_gpiochip_add_data(&pdev->dev, &arizona_gpio->gpio_chip,  in arizona_gpio_probe()
193 		pm_runtime_disable(&pdev->dev);  in arizona_gpio_probe()
194 		dev_err(&pdev->dev, "Could not register gpiochip, %d\n",  in arizona_gpio_probe()
203 	.driver.name	= "arizona-gpio",
212 MODULE_ALIAS("platform:arizona-gpio");