The relevant upstream fixes are:
c14b0a08f0bf58e4f62307c68f8ff0137b4dec19
pcm: Fix suspend/resume regression with dmix & co
5610b356b5f110f7f8e586f56e5b74e0f0c2db38
pcm: dmix: Fix doubly resume of slave PCM
There are a few other fixes related with PCM since v1.1.1, so we can take them
as well.