tps6507x_adc_conversion
ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_PRESSURE,
ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_X_POSITION,
ret = tps6507x_adc_conversion(tsc, TPS6507X_TSCMODE_Y_POSITION,