1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/
4  *	Keerthy <j-keerthy@ti.com>
25 				     unsigned int offset)  in lp873x_gpio_get_direction()  argument
32 				       unsigned int offset)  in lp873x_gpio_direction_input()  argument
35 	return -EINVAL;  in lp873x_gpio_direction_input()
39 					unsigned int offset, int value)  in lp873x_gpio_direction_output()  argument
44 	return regmap_update_bits(gpio->lp873->regmap, LP873X_REG_GPO_CTRL,  in lp873x_gpio_direction_output()
45 				  BIT(offset * BITS_PER_GPO),  in lp873x_gpio_direction_output()
46 				  value ? BIT(offset * BITS_PER_GPO) : 0);  in lp873x_gpio_direction_output()
49 static int lp873x_gpio_get(struct gpio_chip *chip, unsigned int offset)  in lp873x_gpio_get()  argument
54 	ret = regmap_read(gpio->lp873->regmap, LP873X_REG_GPO_CTRL, &val);  in lp873x_gpio_get()
58 	return val & BIT(offset * BITS_PER_GPO);  in lp873x_gpio_get()
61 static void lp873x_gpio_set(struct gpio_chip *chip, unsigned int offset,  in lp873x_gpio_set()  argument
66 	regmap_update_bits(gpio->lp873->regmap, LP873X_REG_GPO_CTRL,  in lp873x_gpio_set()
67 			   BIT(offset * BITS_PER_GPO),  in lp873x_gpio_set()
68 			   value ? BIT(offset * BITS_PER_GPO) : 0);  in lp873x_gpio_set()
71 static int lp873x_gpio_request(struct gpio_chip *gc, unsigned int offset)  in lp873x_gpio_request()  argument
76 	switch (offset) {  in lp873x_gpio_request()
82 		ret = regmap_update_bits(gpio->lp873->regmap, LP873X_REG_CONFIG,  in lp873x_gpio_request()
89 		return -EINVAL;  in lp873x_gpio_request()
95 static int lp873x_gpio_set_config(struct gpio_chip *gc, unsigned offset,  in lp873x_gpio_set_config()  argument
102 		return regmap_update_bits(gpio->lp873->regmap,  in lp873x_gpio_set_config()
104 					  BIT(offset * BITS_PER_GPO +  in lp873x_gpio_set_config()
106 					  BIT(offset * BITS_PER_GPO +  in lp873x_gpio_set_config()
110 		return regmap_update_bits(gpio->lp873->regmap,  in lp873x_gpio_set_config()
112 					  BIT(offset * BITS_PER_GPO +  in lp873x_gpio_set_config()
115 		return -ENOTSUPP;  in lp873x_gpio_set_config()
120 	.label			= "lp873x-gpio",
129 	.base			= -1,
139 	gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL);  in lp873x_gpio_probe()
141 		return -ENOMEM;  in lp873x_gpio_probe()
145 	gpio->lp873 = dev_get_drvdata(pdev->dev.parent);  in lp873x_gpio_probe()
146 	gpio->chip = template_chip;  in lp873x_gpio_probe()
147 	gpio->chip.parent = gpio->lp873->dev;  in lp873x_gpio_probe()
149 	ret = devm_gpiochip_add_data(&pdev->dev, &gpio->chip, gpio);  in lp873x_gpio_probe()
151 		dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);  in lp873x_gpio_probe()
159 	{ "lp873x-gpio", },
166 		.name = "lp873x-gpio",
173 MODULE_AUTHOR("Keerthy <j-keerthy@ti.com>");