Hi Mark,

[...]

+		if (cpu_reg) {
+			ret = regulator_is_supported_voltage(cpu_reg,
+					cpu_volts[i * 2], cpu_volts[i * 2 + 1]);

Is there any reason you didn't export symbol regulator_is_supported_voltage?
and also it don't have !REGULATOR dummy implementation.
 
Thanks
Richard