31  * Mediatek SoCs has two voltage inputs, Vproc and Vsram. In some cases the two
33  * 100mV < Vsram - Vproc < 200mV
84 	int pre_vproc, pre_vsram, new_vsram, vsram, vproc, ret;  in mtk_cpufreq_voltage_tracking()  local
90 			"invalid Vproc value: %d\n", pre_vproc);  in mtk_cpufreq_voltage_tracking()
115 				vproc = new_vproc;  in mtk_cpufreq_voltage_tracking()
117 				vproc = vsram - soc_data->min_volt_shift;  in mtk_cpufreq_voltage_tracking()
119 			ret = regulator_set_voltage(proc_reg, vproc,  in mtk_cpufreq_voltage_tracking()
127 			vproc = max(new_vproc,  in mtk_cpufreq_voltage_tracking()
129 			ret = regulator_set_voltage(proc_reg, vproc,  in mtk_cpufreq_voltage_tracking()
134 			if (vproc == new_vproc)  in mtk_cpufreq_voltage_tracking()
138 					    vproc + soc_data->min_volt_shift);  in mtk_cpufreq_voltage_tracking()
149 		pre_vproc = vproc;  in mtk_cpufreq_voltage_tracking()
157 	} while (vproc != new_vproc || vsram != new_vsram);  in mtk_cpufreq_voltage_tracking()
162 static int mtk_cpufreq_set_voltage(struct mtk_cpu_dvfs_info *info, int vproc)  in mtk_cpufreq_set_voltage()  argument
168 		ret = mtk_cpufreq_voltage_tracking(info, vproc);  in mtk_cpufreq_set_voltage()
170 		ret = regulator_set_voltage(info->proc_reg, vproc,  in mtk_cpufreq_set_voltage()
173 		info->pre_vproc = vproc;  in mtk_cpufreq_set_voltage()
210 	int vproc, pre_vproc, inter_vproc, target_vproc, ret;  in mtk_cpufreq_set_target()  local
224 		dev_err(cpu_dev, "invalid Vproc value: %d\n", pre_vproc);  in mtk_cpufreq_set_target()
238 	vproc = dev_pm_opp_get_voltage(opp);  in mtk_cpufreq_set_target()
247 		vproc = max(vproc, info->vproc_on_boot);  in mtk_cpufreq_set_target()
253 	target_vproc = max(inter_vproc, vproc);  in mtk_cpufreq_set_target()
296 	if (vproc < inter_vproc || vproc < pre_vproc) {  in mtk_cpufreq_set_target()
297 		ret = mtk_cpufreq_set_voltage(info, vproc);  in mtk_cpufreq_set_target()
429 		dev_err_probe(cpu_dev, ret, "cpu%d: failed to enable vproc\n", cpu);  in mtk_cpu_dvfs_info_init()
482 					    "invalid Vproc value\n");  in mtk_cpu_dvfs_info_init()