1 // SPDX-License-Identifier: GPL-2.0
3 #include <linux/gpio/consumer.h>
8 #include <linux/reset-controller.h>
12 	struct gpio_desc *reset;  member
25 	gpiod_set_value_cansleep(priv->reset, 1);  in reset_gpio_assert()
35 	gpiod_set_value_cansleep(priv->reset, 0);  in reset_gpio_deassert()
44 	return gpiod_get_value_cansleep(priv->reset);  in reset_gpio_status()
56 	return reset_spec->args[0];  in reset_gpio_of_xlate()
66 	struct device *dev = &pdev->dev;  in reset_gpio_probe()
72 		return -EINVAL;  in reset_gpio_probe()
76 		return -ENOMEM;  in reset_gpio_probe()
78 	platform_set_drvdata(pdev, &priv->rc);  in reset_gpio_probe()
80 	priv->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in reset_gpio_probe()
81 	if (IS_ERR(priv->reset))  in reset_gpio_probe()
82 		return dev_err_probe(dev, PTR_ERR(priv->reset),  in reset_gpio_probe()
83 				     "Could not get reset gpios\n");  in reset_gpio_probe()
85 	priv->rc.ops = &reset_gpio_ops;  in reset_gpio_probe()
86 	priv->rc.owner = THIS_MODULE;  in reset_gpio_probe()
87 	priv->rc.dev = dev;  in reset_gpio_probe()
88 	priv->rc.of_args = platdata;  in reset_gpio_probe()
90 				       priv->rc.of_node);  in reset_gpio_probe()
94 	/* Cells to match GPIO specifier, but it's not really used */  in reset_gpio_probe()
95 	priv->rc.of_reset_n_cells = 2;  in reset_gpio_probe()
96 	priv->rc.of_xlate = reset_gpio_of_xlate;  in reset_gpio_probe()
97 	priv->rc.nr_resets = 1;  in reset_gpio_probe()
99 	return devm_reset_controller_register(dev, &priv->rc);  in reset_gpio_probe()
103 	{ .name = "reset-gpio", },
112 		.name = "reset-gpio",
118 MODULE_DESCRIPTION("Generic GPIO reset driver");