1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (C) 2018-2021 ARM Ltd.
9 #include <linux/io.h>
36 	ret = power_ops->state_set(pd->ph, pd->domain, state);  in scmi_pd_power()
38 		ret = power_ops->state_get(pd->ph, pd->domain, &ret_state);  in scmi_pd_power()
40 		return -EIO;  in scmi_pd_power()
58 	struct device *dev = &sdev->dev;  in scmi_pm_domain_probe()
59 	struct device_node *np = dev->of_node;  in scmi_pm_domain_probe()
62 	struct generic_pm_domain **domains;  in scmi_pm_domain_probe()  local
63 	const struct scmi_handle *handle = sdev->handle;  in scmi_pm_domain_probe()
67 		return -ENODEV;  in scmi_pm_domain_probe()
69 	power_ops = handle->devm_protocol_get(sdev, SCMI_PROTOCOL_POWER, &ph);  in scmi_pm_domain_probe()
73 	num_domains = power_ops->num_domains_get(ph);  in scmi_pm_domain_probe()
75 		dev_err(dev, "number of domains not found\n");  in scmi_pm_domain_probe()
81 		return -ENOMEM;  in scmi_pm_domain_probe()
85 		return -ENOMEM;  in scmi_pm_domain_probe()
87 	domains = devm_kcalloc(dev, num_domains, sizeof(*domains), GFP_KERNEL);  in scmi_pm_domain_probe()
88 	if (!domains)  in scmi_pm_domain_probe()
89 		return -ENOMEM;  in scmi_pm_domain_probe()
94 		if (power_ops->state_get(ph, i, &state)) {  in scmi_pm_domain_probe()
99 		scmi_pd->domain = i;  in scmi_pm_domain_probe()
100 		scmi_pd->ph = ph;  in scmi_pm_domain_probe()
101 		scmi_pd->name = power_ops->name_get(ph, i);  in scmi_pm_domain_probe()
102 		scmi_pd->genpd.name = scmi_pd->name;  in scmi_pm_domain_probe()
103 		scmi_pd->genpd.power_off = scmi_pd_power_off;  in scmi_pm_domain_probe()
104 		scmi_pd->genpd.power_on = scmi_pd_power_on;  in scmi_pm_domain_probe()
106 		pm_genpd_init(&scmi_pd->genpd, NULL,  in scmi_pm_domain_probe()
109 		domains[i] = &scmi_pd->genpd;  in scmi_pm_domain_probe()
112 	scmi_pd_data->domains = domains;  in scmi_pm_domain_probe()
113 	scmi_pd_data->num_domains = num_domains;  in scmi_pm_domain_probe()
124 	struct device *dev = &sdev->dev;  in scmi_pm_domain_remove()
125 	struct device_node *np = dev->of_node;  in scmi_pm_domain_remove()
130 	for (i = 0; i < scmi_pd_data->num_domains; i++) {  in scmi_pm_domain_remove()
131 		if (!scmi_pd_data->domains[i])  in scmi_pm_domain_remove()
133 		pm_genpd_remove(scmi_pd_data->domains[i]);  in scmi_pm_domain_remove()
144 	.name = "scmi-power-domain",