linux-kernel - Re: [PATCH] NET: dwmac: Make dwmac reset unconditional

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Message-Id: <20170719.135235.1392422982553298240.davem@davemloft.net>
Date:   Wed, 19 Jul 2017 13:52:35 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     Eugeniy.Paltsev@...opsys.com
Cc:     netdev@...r.kernel.org, linux-snps-arc@...ts.infradead.org,
        linux-kernel@...r.kernel.org, alexandre.torgue@...com,
        peppe.cavallaro@...com
Subject: Re: [PATCH] NET: dwmac: Make dwmac reset unconditional

From: Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>
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@...opsys.com>

Applied.