drivers/cpufreq/imx6q-cpufreq.c

66 	int ret;
90 			ret = regulator_set_voltage_tol(pu_reg, imx6_soc_volt[index], 0);
91 			if (ret) {
92 				dev_err(cpu_dev, "failed to scale vddpu up: %d\n", ret);
93 				return ret;
96 		ret = regulator_set_voltage_tol(soc_reg, imx6_soc_volt[index], 0);
97 		if (ret) {
98 			dev_err(cpu_dev, "failed to scale vddsoc up: %d\n", ret);
99 			return ret;
101 		ret = regulator_set_voltage_tol(arm_reg, volt, 0);
102 		if (ret) {
104 				"failed to scale vddarm up: %d\n", ret);
105 			return ret;
157 	ret = clk_set_rate(clks[ARM].clk, new_freq * 1000);
158 	if (ret) {
161 		dev_err(cpu_dev, "failed to set clock rate: %d\n", ret);
166 		return ret;
175 		ret = regulator_set_voltage_tol(arm_reg, volt, 0);
176 		if (ret)
178 				 "failed to scale vddarm down: %d\n", ret);
179 		ret = regulator_set_voltage_tol(soc_reg, imx6_soc_volt[index], 0);
180 		if (ret)
181 			dev_warn(cpu_dev, "failed to scale vddsoc down: %d\n", ret);
183 			ret = regulator_set_voltage_tol(pu_reg, imx6_soc_volt[index], 0);
184 			if (ret)
185 				dev_warn(cpu_dev, "failed to scale vddpu down: %d\n", ret);
216 	int ret = dev_pm_opp_disable(dev, freq);
218 	if (ret < 0 && ret != -ENODEV)
231 	int ret;
234 		ret = nvmem_cell_read_u32(dev, "speed_grade", &val);
235 		if (ret)
236 			return ret;
280 	int ret = 0;
283 		ret = nvmem_cell_read_u32(dev, "speed_grade", &val);
284 		if (ret)
285 			return ret;
322 	return ret;
330 	int num, ret;
353 	ret = clk_bulk_get(cpu_dev, num_clks, clks);
354 	if (ret)
363 		ret = -EPROBE_DEFER;
369 		ret = -ENOENT;
373 	ret = dev_pm_opp_of_add_table(cpu_dev);
374 	if (ret < 0) {
375 		dev_err(cpu_dev, "failed to init OPP table: %d\n", ret);
381 		ret = imx6ul_opp_check_speed_grading(cpu_dev);
383 		ret = imx6q_opp_check_speed_grading(cpu_dev);
385 	if (ret) {
386 		dev_err_probe(cpu_dev, ret, "failed to read ocotp\n");
392 		ret = num;
393 		dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
397 	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
398 	if (ret) {
399 		dev_err(cpu_dev, "failed to init cpufreq table: %d\n", ret);
407 		ret = -ENOMEM;
452 	ret = regulator_set_voltage_time(soc_reg, imx6_soc_volt[0], imx6_soc_volt[num - 1]);
453 	if (ret > 0)
454 		transition_latency += ret * 1000;
456 		ret = regulator_set_voltage_time(pu_reg, imx6_soc_volt[0], imx6_soc_volt[num - 1]);
457 		if (ret > 0)
458 			transition_latency += ret * 1000;
475 	ret = regulator_set_voltage_time(arm_reg, min_volt, max_volt);
476 	if (ret > 0)
477 		transition_latency += ret * 1000;
479 	ret = cpufreq_register_driver(&imx6q_cpufreq_driver);
480 	if (ret) {
481 		dev_err(cpu_dev, "failed register driver: %d\n", ret);
504 	return ret;