6  * SPDX-License-Identifier:	GPL-2.0+
13 #include <asm/gpio.h>
20 	struct gpio_desc gpio; /* GPIO for regulator enable control */  member
28 	struct gpio_desc *gpio;  in fixed_regulator_ofdata_to_platdata()  local
35 		return -ENXIO;  in fixed_regulator_ofdata_to_platdata()
38 	uc_pdata->type = REGULATOR_TYPE_FIXED;  in fixed_regulator_ofdata_to_platdata()
39 	if (!dev_read_bool(dev, "enable-active-high"))  in fixed_regulator_ofdata_to_platdata()
41 	if (dev_read_bool(dev, "regulator-boot-on"))  in fixed_regulator_ofdata_to_platdata()
44 	/* Get fixed regulator optional enable GPIO desc */  in fixed_regulator_ofdata_to_platdata()
45 	gpio = &dev_pdata->gpio;  in fixed_regulator_ofdata_to_platdata()
46 	ret = gpio_request_by_name(dev, "gpio", 0, gpio, flags);  in fixed_regulator_ofdata_to_platdata()
48 		ret = gpio_request_by_name(dev, "gpios", 0, gpio, flags);  in fixed_regulator_ofdata_to_platdata()
50 			debug("Fixed regulator optional enable GPIO - not found! Error: %d\n", ret);  in fixed_regulator_ofdata_to_platdata()
51 			if (ret != -ENOENT)  in fixed_regulator_ofdata_to_platdata()
57 	dev_pdata->startup_delay_us = dev_read_u32_default(dev,  in fixed_regulator_ofdata_to_platdata()
58 							"startup-delay-us", 0);  in fixed_regulator_ofdata_to_platdata()
69 		return -ENXIO;  in fixed_regulator_get_value()
71 	if (uc_pdata->min_uV != uc_pdata->max_uV) {  in fixed_regulator_get_value()
72 		debug("Invalid constraints for: %s\n", uc_pdata->name);  in fixed_regulator_get_value()
73 		return -EINVAL;  in fixed_regulator_get_value()
76 	return uc_pdata->min_uV;  in fixed_regulator_get_value()
85 		return -ENXIO;  in fixed_regulator_get_current()
87 	if (uc_pdata->min_uA != uc_pdata->max_uA) {  in fixed_regulator_get_current()
88 		debug("Invalid constraints for: %s\n", uc_pdata->name);  in fixed_regulator_get_current()
89 		return -EINVAL;  in fixed_regulator_get_current()
92 	return uc_pdata->min_uA;  in fixed_regulator_get_current()
99 	/* Enable GPIO is optional */  in fixed_regulator_get_enable()
100 	if (!dev_pdata->gpio.dev)  in fixed_regulator_get_enable()
103 	return dm_gpio_get_value(&dev_pdata->gpio);  in fixed_regulator_get_enable()
106 static int fixed_regulator_set_enable(struct udevice *dev, bool enable)  in fixed_regulator_set_enable()  argument
111 	debug("%s: dev='%s', enable=%d, delay=%d, has_gpio=%d\n", __func__,  in fixed_regulator_set_enable()
112 	      dev->name, enable, dev_pdata->startup_delay_us,  in fixed_regulator_set_enable()
113 	      dm_gpio_is_valid(&dev_pdata->gpio));  in fixed_regulator_set_enable()
114 	/* Enable GPIO is optional */  in fixed_regulator_set_enable()
115 	if (!dm_gpio_is_valid(&dev_pdata->gpio)) {  in fixed_regulator_set_enable()
116 		if (!enable)  in fixed_regulator_set_enable()
117 			return -ENOSYS;  in fixed_regulator_set_enable()
121 	ret = dm_gpio_set_value(&dev_pdata->gpio, enable);  in fixed_regulator_set_enable()
123 		pr_err("Can't set regulator : %s gpio to: %d\n", dev->name,  in fixed_regulator_set_enable()
124 		      enable);  in fixed_regulator_set_enable()
128 	if (enable && dev_pdata->startup_delay_us)  in fixed_regulator_set_enable()
129 		udelay(dev_pdata->startup_delay_us);  in fixed_regulator_set_enable()
143 	{ .compatible = "regulator-fixed" },