28 #include "cpufreq-dt.h"
40 	NULL,   /* Extra space for boost-attr if required */
46 	struct private_data *priv = policy->driver_data;  in set_target()
47 	unsigned long freq = policy->freq_table[index].frequency;  in set_target()
50 	ret = dev_pm_opp_set_rate(priv->cpu_dev, freq * 1000);  in set_target()
53 		arch_set_freq_scale(policy->related_cpus, freq,  in set_target()
54 				    policy->cpuinfo.max_freq);  in set_target()
61  * An earlier version of opp-v1 bindings used to name the regulator
62  * "cpu0-supply", we still need to handle that for backwards compatibility.
68 	int cpu = dev->id;  in find_supply_name()
71 	np = of_node_get(dev->of_node);  in find_supply_name()
79 		pp = of_find_property(np, "cpu0-supply", NULL);  in find_supply_name()
86 	pp = of_find_property(np, "cpu-supply", NULL);  in find_supply_name()
109 		return -ENODEV;  in resources_available()
119 		if (ret == -EPROBE_DEFER)  in resources_available()
141 		if (ret == -EPROBE_DEFER)  in resources_available()
165 	cpu_dev = get_cpu_device(policy->cpu);  in cpufreq_init()
167 		pr_err("failed to get cpu%d device\n", policy->cpu);  in cpufreq_init()
168 		return -ENODEV;  in cpufreq_init()
178 	/* Get OPP-sharing information from "operating-points-v2" bindings */  in cpufreq_init()
179 	ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, policy->cpus);  in cpufreq_init()
181 		if (ret != -ENOENT)  in cpufreq_init()
185 		 * operating-points-v2 not supported, fallback to old method of  in cpufreq_init()
186 		 * finding shared-OPPs for backward compatibility if the  in cpufreq_init()
189 		if (dev_pm_opp_get_sharing_cpus(cpu_dev, policy->cpus))  in cpufreq_init()
203 				policy->cpu, ret);  in cpufreq_init()
210 		ret = -ENOMEM;  in cpufreq_init()
214 	priv->reg_name = name;  in cpufreq_init()
215 	priv->opp_table = opp_table;  in cpufreq_init()
218 	 * Initialize OPP tables for all policy->cpus. They will be shared by  in cpufreq_init()
221 	 * For platforms not using operating-points-v2 bindings, we do this  in cpufreq_init()
222 	 * before updating policy->cpus. Otherwise, we will end up creating  in cpufreq_init()
223 	 * duplicate OPPs for policy->cpus.  in cpufreq_init()
225 	 * OPPs might be populated at runtime, don't check for error here  in cpufreq_init()
227 	if (!dev_pm_opp_of_cpumask_add_table(policy->cpus))  in cpufreq_init()
228 		priv->have_static_opps = true;  in cpufreq_init()
237 		ret = -EPROBE_DEFER;  in cpufreq_init()
242 		cpumask_setall(policy->cpus);  in cpufreq_init()
245 		 * OPP tables are initialized only for policy->cpu, do it for  in cpufreq_init()
248 		ret = dev_pm_opp_set_sharing_cpus(cpu_dev, policy->cpus);  in cpufreq_init()
250 			dev_err(cpu_dev, "%s: failed to mark OPPs as shared: %d\n",  in cpufreq_init()
260 	priv->cpu_dev = cpu_dev;  in cpufreq_init()
261 	policy->driver_data = priv;  in cpufreq_init()
262 	policy->clk = cpu_clk;  in cpufreq_init()
263 	policy->freq_table = freq_table;  in cpufreq_init()
265 	policy->suspend_freq = dev_pm_opp_get_suspend_opp_freq(cpu_dev) / 1000;  in cpufreq_init()
280 	policy->cpuinfo.transition_latency = transition_latency;  in cpufreq_init()
281 	policy->dvfs_possible_from_any_cpu = true;  in cpufreq_init()
288 	if (priv->have_static_opps)  in cpufreq_init()
289 		dev_pm_opp_of_cpumask_remove_table(policy->cpus);  in cpufreq_init()
302 	struct private_data *priv = policy->driver_data;  in cpufreq_exit()
304 	cpufreq_cooling_unregister(priv->cdev);  in cpufreq_exit()
305 	dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table);  in cpufreq_exit()
306 	if (priv->have_static_opps)  in cpufreq_exit()
307 		dev_pm_opp_of_cpumask_remove_table(policy->related_cpus);  in cpufreq_exit()
308 	if (priv->reg_name)  in cpufreq_exit()
309 		dev_pm_opp_put_regulators(priv->opp_table);  in cpufreq_exit()
311 	clk_put(policy->clk);  in cpufreq_exit()
319 	struct private_data *priv = policy->driver_data;  in cpufreq_ready()
321 	priv->cdev = of_cpufreq_cooling_register(policy);  in cpufreq_ready()
332 	.name = "cpufreq-dt",
339 	struct cpufreq_dt_platform_data *data = dev_get_platdata(&pdev->dev);  in dt_cpufreq_probe()
343 	 * All per-cluster (CPUs sharing clock/voltages) initialization is done  in dt_cpufreq_probe()
344 	 * from ->init(). In probe(), we just need to make sure that clk and  in dt_cpufreq_probe()
354 		if (data->have_governor_per_policy)  in dt_cpufreq_probe()
357 		dt_cpufreq_driver.resume = data->resume;  in dt_cpufreq_probe()
358 		if (data->suspend)  in dt_cpufreq_probe()
359 			dt_cpufreq_driver.suspend = data->suspend;  in dt_cpufreq_probe()
364 		dev_err(&pdev->dev, "failed register driver: %d\n", ret);  in dt_cpufreq_probe()
377 		.name	= "cpufreq-dt",
384 MODULE_ALIAS("platform:cpufreq-dt");