  In the context of the type-I seesaw mechanism, it is known that $\theta_{13}$
is zero and leptogenesis can not be realized if there exists a residual flavor
symmetry resulting in the Tri-Bimaximal neutrino mixing pattern. We propose a
simple framework where additional particles, odd under a $Z_2$ symmetry, break
the residual flavor symmetry and the lightest of the $Z_2$ odd particles is the
dark matter candidate. As as result, nonzero $\theta_{13}$, $\delta_{CP}$,
leptogenesis and the correct dark matter density can be accommodated. On the
other hand, a $Z_2$ odd scalar can play the role of the inflaton with mass of
$10^{13}$ GeV motivated by the recent BICEP2 results. Interestingly, the model
can "generate" $\delta_{CP} \simeq -\pi/2$, preferred by the T2K experiment in
the normal hierarchy neutrino mass spectrum.
