GPADC0_CHAN
ADC_CHANNEL_RESISTANCE(GPADC0_CHAN, 342, "gpadc0"),
unsigned int gpadc_num = chan - GPADC0_CHAN;
unsigned int gpadc_num = chan->channel - GPADC0_CHAN;
[GPADC0_CHAN] = PM886_REG_GPADC_GPADC0,