READ_Z2           188 drivers/input/touchscreen/ads7846.c #define	READ_Z2(vref)	(READ_12BIT_DFR(z2, 1, vref))
READ_Z2            48 drivers/input/touchscreen/tsc2007.h #define READ_Z2		(ADC_ON_12BIT | TSC2007_MEASURE_Z2)