STMPE24XX_PWMCS
ret = stmpe_reg_read(stmpe_pwm->stmpe, STMPE24XX_PWMCS);
ret = stmpe_reg_write(stmpe_pwm->stmpe, STMPE24XX_PWMCS, value);
ret = stmpe_reg_read(stmpe_pwm->stmpe, STMPE24XX_PWMCS);
ret = stmpe_reg_write(stmpe_pwm->stmpe, STMPE24XX_PWMCS, value);