141 static inline int wait_for_voltage_change(int vdd_last)  in wait_for_voltage_change()  argument
147 	for (timeout = 0; abs(vdd_last - vdd_current) <= 4 &&  in wait_for_voltage_change()
164 	int timeout, vdd_current, vdd_last;  in wait_for_voltage_stable()  local
166 	vdd_last = read_voltage();  in wait_for_voltage_stable()
170 	for (timeout = 0; abs(vdd_last - vdd_current) >= 4 &&  in wait_for_voltage_stable()
172 		vdd_last = vdd_current;  in wait_for_voltage_stable()
186 	int wait, vdd_last;  in set_voltage()  local
188 	vdd_last = read_voltage();  in set_voltage()
190 	wait = wait_for_voltage_change(vdd_last);  in set_voltage()
196 	vdd_last = wait_for_voltage_stable(wait);  in set_voltage()
197 	if (vdd_last < 0)  in set_voltage()
199 	debug("VID: Current voltage is %d mV\n", vdd_last);  in set_voltage()
201 	return vdd_last;  in set_voltage()
212 	int vdd_target, vdd_current, vdd_last;  in adjust_vdd()  local
303 	vdd_last = read_voltage();  in adjust_vdd()
304 	if (vdd_last < 0) {  in adjust_vdd()
309 	debug("VID: Core voltage is at %d mV\n", vdd_last);  in adjust_vdd()
315 	while (vdd_last > 0 && vid_current < 0x80 &&  in adjust_vdd()
316 		vdd_last > (vdd_target + 8)) {  in adjust_vdd()
318 		vdd_last = set_voltage(vid_current);  in adjust_vdd()
324 	while (vdd_last > 0 && vid_current >= 0x40 &&  in adjust_vdd()
325 		vdd_last < vdd_target + 2) {  in adjust_vdd()
327 		vdd_last = set_voltage(vid_current);  in adjust_vdd()
329 	if (vdd_last > 0)  in adjust_vdd()
330 		printf("VID: Core voltage %d mV\n", vdd_last);  in adjust_vdd()