142 static inline int wait_for_voltage_change(int vdd_last)  in wait_for_voltage_change()  argument
148 	for (timeout = 0; abs(vdd_last - vdd_current) <= 4 &&  in wait_for_voltage_change()
165 	int timeout, vdd_current, vdd_last;  in wait_for_voltage_stable()  local
167 	vdd_last = read_voltage();  in wait_for_voltage_stable()
171 	for (timeout = 0; abs(vdd_last - vdd_current) >= 4 &&  in wait_for_voltage_stable()
173 		vdd_last = vdd_current;  in wait_for_voltage_stable()
187 	int wait, vdd_last;  in set_voltage()  local
189 	vdd_last = read_voltage();  in set_voltage()
191 	wait = wait_for_voltage_change(vdd_last);  in set_voltage()
197 	vdd_last = wait_for_voltage_stable(wait);  in set_voltage()
198 	if (vdd_last < 0)  in set_voltage()
200 	debug("VID: Current voltage is %d mV\n", vdd_last);  in set_voltage()
202 	return vdd_last;  in set_voltage()
213 	int vdd_target, vdd_current, vdd_last;  in adjust_vdd()  local
304 	vdd_last = read_voltage();  in adjust_vdd()
305 	if (vdd_last < 0) {  in adjust_vdd()
310 	debug("VID: Core voltage is at %d mV\n", vdd_last);  in adjust_vdd()
316 	while (vdd_last > 0 && vid_current < 0x80 &&  in adjust_vdd()
317 		vdd_last > (vdd_target + 8)) {  in adjust_vdd()
319 		vdd_last = set_voltage(vid_current);  in adjust_vdd()
325 	while (vdd_last > 0 && vid_current >= 0x40 &&  in adjust_vdd()
326 		vdd_last < vdd_target + 2) {  in adjust_vdd()
328 		vdd_last = set_voltage(vid_current);  in adjust_vdd()
330 	if (vdd_last > 0)  in adjust_vdd()
331 		printf("VID: Core voltage %d mV\n", vdd_last);  in adjust_vdd()