54 static int mtk_cpufreq_voltage_tracking(struct mtk_cpu_dvfs_info *info,  in mtk_cpufreq_voltage_tracking()  argument
57 	struct regulator *proc_reg = info->proc_reg;  in mtk_cpufreq_voltage_tracking()
58 	struct regulator *sram_reg = info->sram_reg;  in mtk_cpufreq_voltage_tracking()
163 static int mtk_cpufreq_set_voltage(struct mtk_cpu_dvfs_info *info, int vproc)  in mtk_cpufreq_set_voltage()  argument
165 	if (info->need_voltage_tracking)  in mtk_cpufreq_set_voltage()
166 		return mtk_cpufreq_voltage_tracking(info, vproc);  in mtk_cpufreq_set_voltage()
168 		return regulator_set_voltage(info->proc_reg, vproc,  in mtk_cpufreq_set_voltage()
178 	struct mtk_cpu_dvfs_info *info = policy->driver_data;  in mtk_cpufreq_set_target()  local
179 	struct device *cpu_dev = info->cpu_dev;  in mtk_cpufreq_set_target()
184 	inter_vproc = info->intermediate_voltage;  in mtk_cpufreq_set_target()
187 	old_vproc = regulator_get_voltage(info->proc_reg);  in mtk_cpufreq_set_target()
208 		ret = mtk_cpufreq_set_voltage(info, target_vproc);  in mtk_cpufreq_set_target()
212 			mtk_cpufreq_set_voltage(info, old_vproc);  in mtk_cpufreq_set_target()
218 	ret = clk_set_parent(cpu_clk, info->inter_clk);  in mtk_cpufreq_set_target()
222 		mtk_cpufreq_set_voltage(info, old_vproc);  in mtk_cpufreq_set_target()
233 		mtk_cpufreq_set_voltage(info, old_vproc);  in mtk_cpufreq_set_target()
242 		mtk_cpufreq_set_voltage(info, inter_vproc);  in mtk_cpufreq_set_target()
252 		ret = mtk_cpufreq_set_voltage(info, vproc);  in mtk_cpufreq_set_target()
256 			clk_set_parent(cpu_clk, info->inter_clk);  in mtk_cpufreq_set_target()
268 	struct mtk_cpu_dvfs_info *info = policy->driver_data;  in mtk_cpufreq_ready()  local
269 	struct device_node *np = of_node_get(info->cpu_dev->of_node);  in mtk_cpufreq_ready()
275 		info->cdev = of_cpufreq_cooling_register(np,  in mtk_cpufreq_ready()
278 		if (IS_ERR(info->cdev)) {  in mtk_cpufreq_ready()
279 			dev_err(info->cpu_dev,  in mtk_cpufreq_ready()
281 				PTR_ERR(info->cdev));  in mtk_cpufreq_ready()
283 			info->cdev = NULL;  in mtk_cpufreq_ready()
290 static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)  in mtk_cpu_dvfs_info_init()  argument
363 	info->intermediate_voltage = dev_pm_opp_get_voltage(opp);  in mtk_cpu_dvfs_info_init()
366 	info->cpu_dev = cpu_dev;  in mtk_cpu_dvfs_info_init()
367 	info->proc_reg = proc_reg;  in mtk_cpu_dvfs_info_init()
368 	info->sram_reg = IS_ERR(sram_reg) ? NULL : sram_reg;  in mtk_cpu_dvfs_info_init()
369 	info->cpu_clk = cpu_clk;  in mtk_cpu_dvfs_info_init()
370 	info->inter_clk = inter_clk;  in mtk_cpu_dvfs_info_init()
376 	info->need_voltage_tracking = !IS_ERR(sram_reg);  in mtk_cpu_dvfs_info_init()
396 static void mtk_cpu_dvfs_info_release(struct mtk_cpu_dvfs_info *info)  in mtk_cpu_dvfs_info_release()  argument
398 	if (!IS_ERR(info->proc_reg))  in mtk_cpu_dvfs_info_release()
399 		regulator_put(info->proc_reg);  in mtk_cpu_dvfs_info_release()
400 	if (!IS_ERR(info->sram_reg))  in mtk_cpu_dvfs_info_release()
401 		regulator_put(info->sram_reg);  in mtk_cpu_dvfs_info_release()
402 	if (!IS_ERR(info->cpu_clk))  in mtk_cpu_dvfs_info_release()
403 		clk_put(info->cpu_clk);  in mtk_cpu_dvfs_info_release()
404 	if (!IS_ERR(info->inter_clk))  in mtk_cpu_dvfs_info_release()
405 		clk_put(info->inter_clk);  in mtk_cpu_dvfs_info_release()
407 	dev_pm_opp_of_remove_table(info->cpu_dev);  in mtk_cpu_dvfs_info_release()
412 	struct mtk_cpu_dvfs_info *info;  in mtk_cpufreq_init()  local
416 	info = kzalloc(sizeof(*info), GFP_KERNEL);  in mtk_cpufreq_init()
417 	if (!info)  in mtk_cpufreq_init()
420 	ret = mtk_cpu_dvfs_info_init(info, policy->cpu);  in mtk_cpufreq_init()
427 	ret = dev_pm_opp_init_cpufreq_table(info->cpu_dev, &freq_table);  in mtk_cpufreq_init()
442 	policy->driver_data = info;  in mtk_cpufreq_init()
443 	policy->clk = info->cpu_clk;  in mtk_cpufreq_init()
448 	dev_pm_opp_free_cpufreq_table(info->cpu_dev, &freq_table);  in mtk_cpufreq_init()
451 	mtk_cpu_dvfs_info_release(info);  in mtk_cpufreq_init()
454 	kfree(info);  in mtk_cpufreq_init()
461 	struct mtk_cpu_dvfs_info *info = policy->driver_data;  in mtk_cpufreq_exit()  local
463 	cpufreq_cooling_unregister(info->cdev);  in mtk_cpufreq_exit()
464 	dev_pm_opp_free_cpufreq_table(info->cpu_dev, &policy->freq_table);  in mtk_cpufreq_exit()
465 	mtk_cpu_dvfs_info_release(info);  in mtk_cpufreq_exit()
466 	kfree(info);  in mtk_cpufreq_exit()