stmpe_enable
ret = stmpe_enable(stmpe, STMPE_BLOCK_GPIO);
ret = stmpe_enable(stmpe, STMPE_BLOCK_ADC);
ret = stmpe_enable(stmpe, STMPE_BLOCK_KEYPAD);
ret = stmpe_enable(stmpe, STMPE_BLOCK_TOUCHSCREEN | STMPE_BLOCK_ADC);
EXPORT_SYMBOL_GPL(stmpe_enable);
ret = stmpe_enable(stmpe, STMPE_BLOCK_PWM);
extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks);