[PATCH] NET: dwmac: Make dwmac reset unconditional

[davem@xxxxxxxxxxxxx (David Miller)]

From: Eugeniy Paltsev <Eugeniy.Paltsev@xxxxxxxxxxxx>
Date: Tue, 18 Jul 2017 17:07:15 +0300

> Unconditional reset dwmac before HW init if reset controller is present.
> 
> In existing implementation we reset dwmac only after second module
> probing:
> (module load -> unload -> load again [reset happens])
> 
> Now we reset dwmac at every module load:
> (module load [reset happens] -> unload -> load again [reset happens])
> 
> Also some reset controllers have only reset callback instead of
> assert + deassert callbacks pair, so handle this case.
> 
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev at synopsys.com>

Applied.