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From:   Zong Li <zong.li@sifive.com>
Date:   Wed, 14 Apr 2021 22:13:00 +0800
Message-ID: <CANXhq0rTC8grpRe_Q0vG6_52b-41OuN4vHum8RvouMbE6xiXpQ@mail.gmail.com>
Subject: Re: [PATCH v7 0/5] clk: add driver for the SiFive FU740
To:     Andreas Schwab <schwab@linux-m68k.org>
Cc:     Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Pragnesh Patel <pragnesh.patel@openfive.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Michael Turquette <mturquette@baylibre.com>,
        "linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>,
        linux-clk@vger.kernel.org,
        linux-riscv <linux-riscv@lists.infradead.org>
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On Mon, Apr 12, 2021 at 7:31 PM Andreas Schwab <schwab@linux-m68k.org> wrot=
e:
>
> On M=C3=A4r 31 2021, Zong Li wrote:
>
> > I found that the gemgxlpll was disabled immediately by power
> > management after macb driver install. The mainline's defconfig doesn't
> > enable CONFIG_PM, so the network is fine on it. The opensuse defconfig
> > enables CONFIG_PM, and the patch
> > 732374a0b440d9a79c8412f318a25cd37ba6f4e2 added the enable/disable
> > callback functions, so the gemgxlpll PLL, I have no idea why power
> > management disable it, I would keep trace it.
>
> Does that mean that CONFIG_PM also affects the FU740?
>

Yes, we got the same problem on the FU740. We are checking the issue.

> Andreas.
>
> --
> Andreas Schwab, schwab@linux-m68k.org
> GPG Key fingerprint =3D 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC=
1
> "And now for something completely different."