drivers/regulator/uniphier-regulator.c

1 // SPDX-License-Identifier: GPL-2.0
3 // Regulator controller driver for UniPhier SoC
13 #include <linux/regulator/driver.h>
14 #include <linux/regulator/of_regulator.h>
43 	struct device *dev = &pdev->dev;  in uniphier_regulator_probe()
54 		return -ENOMEM;  in uniphier_regulator_probe()
56 	priv->data = of_device_get_match_data(dev);  in uniphier_regulator_probe()
57 	if (WARN_ON(!priv->data))  in uniphier_regulator_probe()
58 		return -EINVAL;  in uniphier_regulator_probe()
64 	for (i = 0; i < priv->data->nclks; i++)  in uniphier_regulator_probe()
65 		priv->clk[i].id = priv->data->clock_names[i];  in uniphier_regulator_probe()
66 	ret = devm_clk_bulk_get(dev, priv->data->nclks, priv->clk);  in uniphier_regulator_probe()
70 	for (i = 0; i < priv->data->nrsts; i++) {  in uniphier_regulator_probe()
71 		name = priv->data->reset_names[i];  in uniphier_regulator_probe()
72 		priv->rst[i] = devm_reset_control_get_shared(dev, name);  in uniphier_regulator_probe()
73 		if (IS_ERR(priv->rst[i]))  in uniphier_regulator_probe()
74 			return PTR_ERR(priv->rst[i]);  in uniphier_regulator_probe()
77 	ret = clk_bulk_prepare_enable(priv->data->nclks, priv->clk);  in uniphier_regulator_probe()
81 	for (nr = 0; nr < priv->data->nrsts; nr++) {  in uniphier_regulator_probe()
82 		ret = reset_control_deassert(priv->rst[nr]);  in uniphier_regulator_probe()
87 	regmap = devm_regmap_init_mmio(dev, base, priv->data->regconf);  in uniphier_regulator_probe()
95 	config.of_node = dev->of_node;  in uniphier_regulator_probe()
97 	config.init_data = of_get_regulator_init_data(dev, dev->of_node,  in uniphier_regulator_probe()
98 						      priv->data->desc);  in uniphier_regulator_probe()
99 	rdev = devm_regulator_register(dev, priv->data->desc, &config);  in uniphier_regulator_probe()
110 	while (nr--)  in uniphier_regulator_probe()
111 		reset_control_assert(priv->rst[nr]);  in uniphier_regulator_probe()
113 	clk_bulk_disable_unprepare(priv->data->nclks, priv->clk);  in uniphier_regulator_probe()
123 	for (i = 0; i < priv->data->nrsts; i++)  in uniphier_regulator_remove()
124 		reset_control_assert(priv->rst[i]);  in uniphier_regulator_remove()
126 	clk_bulk_disable_unprepare(priv->data->nclks, priv->clk);  in uniphier_regulator_remove()
129 /* USB3 controller data */
181 		.compatible = "socionext,uniphier-pro4-usb3-regulator",
185 		.compatible = "socionext,uniphier-pro5-usb3-regulator",
189 		.compatible = "socionext,uniphier-pxs2-usb3-regulator",
193 		.compatible = "socionext,uniphier-ld20-usb3-regulator",
197 		.compatible = "socionext,uniphier-pxs3-usb3-regulator",
201 		.compatible = "socionext,uniphier-nx1-usb3-regulator",
212 		.name  = "uniphier-regulator",
220 MODULE_DESCRIPTION("UniPhier Regulator Controller Driver");