5  * SPDX-License-Identifier:	GPL-2.0+
37 	int	retval = -1;  in tps6586x_read()
60 	int	retval = -1;  in tps6586x_write()
86  * @return 0 if ok, -1 on error
99 	if (ctrl1 == -1 || ctrl2 == -1)  in read_voltages()
100 		return -ENOTSUPP;  in read_voltages()
106 	if (*sm0 == -1 || *sm1 == -1)  in read_voltages()
107 		return -ENOTSUPP;  in read_voltages()
120 	 * Only one supply is needed in u-boot. set both v1 and v2 to  in set_voltage()
132 		return -ENOTSUPP;  in set_voltage()
137 static int calculate_next_voltage(int voltage, int target, int step)  in calculate_next_voltage()  argument
139 	int diff = voltage < target ? step : -step;  in calculate_next_voltage()
141 	if (abs(target - voltage) > step)  in calculate_next_voltage()
156 	if (ret != -1) {  in tps6586x_set_pwm_mode()
163 	if (ret == -1)  in tps6586x_set_pwm_mode()
169 int tps6586x_adjust_sm0_sm1(int sm0_target, int sm1_target, int step, int rate,  in tps6586x_adjust_sm0_sm1()  argument
180 		return -EINVAL;  in tps6586x_adjust_sm0_sm1()
189 	if (min_sm0_over_sm1 != -1 && sm0 < sm1 + min_sm0_over_sm1) {  in tps6586x_adjust_sm0_sm1()
192 		return -EINVAL;  in tps6586x_adjust_sm0_sm1()
200 	 * So, find out which vdd to adjust first in each step.  in tps6586x_adjust_sm0_sm1()
205 	 * case 2: both sm0 and sm1 need to move down  in tps6586x_adjust_sm0_sm1()
208 	 * case 3: sm0 moves down and sm1 moves up  in tps6586x_adjust_sm0_sm1()
211 	 * Adjust vdd_core and vdd_cpu one step at a time until they reach  in tps6586x_adjust_sm0_sm1()
218 		debug("%d-%d   %d-%d   ", sm0, sm0_target, sm1, sm1_target);  in tps6586x_adjust_sm0_sm1()
223 			 * otherwise, hold down until new sm1 is set.  in tps6586x_adjust_sm0_sm1()
225 			sm0 = calculate_next_voltage(sm0, sm0_target, step);  in tps6586x_adjust_sm0_sm1()
233 			sm1 = calculate_next_voltage(sm1, sm1_target, step);  in tps6586x_adjust_sm0_sm1()
241 	debug("%d-%d   %d-%d   done\n", sm0, sm0_target, sm1, sm1_target);  in tps6586x_adjust_sm0_sm1()
243 	return bad ? -EINVAL : 0;  in tps6586x_adjust_sm0_sm1()