  We construct an inflation model with inflaton non-minimally coupled to
gravity on a warped DGP brane. Using an exponential potential, we calculate
scalar power spectrum, spectral index and the running of the spectral index. We
show that for a suitable range of non-minimal coupling it is possible to exit
the inflationary phase spontaneously and without any mechanism, even in the
case that minimal inflation can not exit spontaneously. By a detailed analysis
of parameter space, we study the constraints imposed on the non-minimal
coupling from recent observational data.
