Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Mon, 28 Sep 2020 14:54:38 +0200
From:   Thierry Reding <thierry.reding@gmail.com>
To:     JC Kuo <jckuo@nvidia.com>
Cc:     gregkh@linuxfoundation.org, robh@kernel.org, jonathanh@nvidia.com,
        kishon@ti.com, linux-tegra@vger.kernel.org,
        linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org, nkristam@nvidia.com
Subject: Re: [PATCH v3 00/15] Tegra XHCI controller ELPG support
Message-ID: <20200928125438.GC3065790@ulmo>
References: <20200909081041.3190157-1-jckuo@nvidia.com>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha256;
        protocol="application/pgp-signature"; boundary="96YOpH+ONegL0A3E"
Content-Disposition: inline
In-Reply-To: <20200909081041.3190157-1-jckuo@nvidia.com>
User-Agent: Mutt/1.14.7 (2020-08-29)
Precedence: bulk


--96YOpH+ONegL0A3E
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Wed, Sep 09, 2020 at 04:10:26PM +0800, JC Kuo wrote:
> Tegra XHCI controler can be placed in ELPG (Engine Level PowerGated)
> state for power saving when all of the connected USB devices are in
> suspended state. This patch series includes clk, phy and pmc changes
> that are required for properly place controller in ELPG and bring
> controller out of ELPG.
>=20
> JC Kuo (15):
>   clk: tegra: Add PLLE HW power sequencer control
>   clk: tegra: Don't enable PLLE HW sequencer at init

Is it safe to apply this second patch before the others have applied?
Since we now need to explicitly enable the HW sequencer, it won't be
enabled before the corresponding patch does that. So applying patch 2
before the others sounds like it would break existing users of the HW
sequencer.

Thierry

--96YOpH+ONegL0A3E
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=aVne
-----END PGP SIGNATURE-----

--96YOpH+ONegL0A3E--