linux-kernel - Re: [PATCH 1/1] net: fec: ptp: avoid register access when ipg clock is disabled

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Message-ID: <20210223161136.GA5894@hoboy.vegasvil.org>
Date:   Tue, 23 Feb 2021 08:11:36 -0800
From:   Richard Cochran <richardcochran@...il.com>
To:     Heiko Thiery <heiko.thiery@...il.com>
Cc:     Jakub Kicinski <kuba@...nel.org>, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
        Fugang Duan <fugang.duan@....com>
Subject: Re: [PATCH 1/1] net: fec: ptp: avoid register access when ipg clock
 is disabled

On Tue, Feb 23, 2021 at 04:04:16PM +0100, Heiko Thiery wrote:
> It is not only the PHC clock that stops. Rather, it is the entire
> ethernet building block in the SOC that is disabled, including the
> PHC.

Sure, but why does the driver do that?

Thanks,
Richard