LRADC_CTRL4
adc->base + LRADC_CTRL4 + STMP_OFFSET_REG_CLR);
writel(chan, adc->base + LRADC_CTRL4 + STMP_OFFSET_REG_SET);
writel(ctrl4_clr, adc->base + LRADC_CTRL4 + STMP_OFFSET_REG_CLR);
writel(ctrl4_set, adc->base + LRADC_CTRL4 + STMP_OFFSET_REG_SET);
ts->base + LRADC_CTRL4 + STMP_OFFSET_REG_CLR);
ts->base + LRADC_CTRL4 + STMP_OFFSET_REG_SET);