1 // SPDX-License-Identifier: GPL-2.0-only
3 // Driver for the regulator based Ethernet Power Sourcing Equipment, without
12 #include <linux/pse-pd/pse.h>
32 	ret = regulator_enable(priv->ps);  in pse_reg_pi_enable()
36 	priv->admin_state = ETHTOOL_PODL_PSE_ADMIN_STATE_ENABLED;  in pse_reg_pi_enable()
46 	ret = regulator_disable(priv->ps);  in pse_reg_pi_disable()
50 	priv->admin_state = ETHTOOL_PODL_PSE_ADMIN_STATE_DISABLED;  in pse_reg_pi_disable()
59 	return regulator_is_enabled(priv->ps);  in pse_reg_pi_is_enabled()
70 	ret = regulator_is_enabled(priv->ps);  in pse_reg_ethtool_get_status()
75 		status->podl_pw_status = ETHTOOL_PODL_PSE_PW_D_STATUS_DISABLED;  in pse_reg_ethtool_get_status()
77 		status->podl_pw_status =  in pse_reg_ethtool_get_status()
80 	status->podl_admin_state = priv->admin_state;  in pse_reg_ethtool_get_status()
95 	struct device *dev = &pdev->dev;  in pse_reg_probe()
99 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);  in pse_reg_probe()
101 		return -ENOMEM;  in pse_reg_probe()
103 	if (!pdev->dev.of_node)  in pse_reg_probe()
104 		return -ENOENT;  in pse_reg_probe()
106 	priv->ps = devm_regulator_get_exclusive(dev, "pse");  in pse_reg_probe()
107 	if (IS_ERR(priv->ps))  in pse_reg_probe()
108 		return dev_err_probe(dev, PTR_ERR(priv->ps),  in pse_reg_probe()
109 				     "failed to get PSE regulator.\n");  in pse_reg_probe()
113 	ret = regulator_is_enabled(priv->ps);  in pse_reg_probe()
118 		priv->admin_state = ETHTOOL_PODL_PSE_ADMIN_STATE_ENABLED;  in pse_reg_probe()
120 		priv->admin_state = ETHTOOL_PODL_PSE_ADMIN_STATE_DISABLED;  in pse_reg_probe()
122 	priv->pcdev.owner = THIS_MODULE;  in pse_reg_probe()
123 	priv->pcdev.ops = &pse_reg_ops;  in pse_reg_probe()
124 	priv->pcdev.dev = dev;  in pse_reg_probe()
125 	priv->pcdev.types = ETHTOOL_PSE_PODL;  in pse_reg_probe()
126 	ret = devm_pse_controller_register(dev, &priv->pcdev);  in pse_reg_probe()
128 		dev_err(dev, "failed to register PSE controller (%pe)\n",  in pse_reg_probe()
137 	{ .compatible = "podl-pse-regulator", },
145 		.name		= "PSE regulator",
152 MODULE_DESCRIPTION("regulator based Ethernet Power Sourcing Equipment");
154 MODULE_ALIAS("platform:pse-regulator");