LPC32XX_TSC_CON
tsc_writel(tsc, LPC32XX_TSC_CON,
tsc_readl(tsc, LPC32XX_TSC_CON) &
tmp = tsc_readl(tsc, LPC32XX_TSC_CON) & ~LPC32XX_TSC_ADCCON_POWER_UP;
tsc_writel(tsc, LPC32XX_TSC_CON, tmp);
tsc_writel(tsc, LPC32XX_TSC_CON, tmp | LPC32XX_TSC_ADCCON_AUTO_EN);