Stevie Wonder just called to say ... I'm not giving you any gifts for your birthday so deal with it -- but I love you.

Stevie was out with his sons Kailand and Mandla at Mr. Chow ... for Kailand's 14th birthday -- and you gotta figure a super famous and successful dad like Stevie gives awesome gifts, right?

Our photog raised the issue, and got a surprising -- and maybe admirable -- response. 

Let's just say ... signed, sealed, delivered? Not always.