* Grygorii Strashko [off-list ref] [130717 04:49]:

The pinctrl support in Device core assumed to be optional - so, It's
valid case, when there are no definition for default device's pinctrl
states in DT at all ("default", "active", "idle", "sleep").
And in this case dev->pins == NULL and pinctrl_pm_select*() API
should return 0 always.

Now the checks for !dev->pins have been removed from
pinctrl_pm_select*() API mistakenly by the patch
pinctrl: Remove duplicate code in pinctrl_pm_select_state functions
http://www.spinics.net/lists/arm-kernel/msg258829.html

Hence, rollback these checks in in pinctrl_pm_select*() APIs.

Thanks, it's best that I fold this fix into my patch as it has not
been committed yet.

Regards,

Tony