From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: Re: [PATCH v5 1/8] i2c: tegra: Fix suspending in active runtime PM state Date: Wed, 15 Jan 2020 18:33:58 +0100 Message-ID: <20200115173358.GD1239@ninjato> References: <20200114013442.28448-1-digetx@gmail.com> <20200114013442.28448-2-digetx@gmail.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="2Z2K0IlrPCVsbNpk" Return-path: Content-Disposition: inline In-Reply-To: <20200114013442.28448-2-digetx-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Dmitry Osipenko Cc: Thierry Reding , Jonathan Hunter , Laxman Dewangan , Mikko Perttunen , linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-tegra@vger.kernel.org --2Z2K0IlrPCVsbNpk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jan 14, 2020 at 04:34:35AM +0300, Dmitry Osipenko wrote: > I noticed that sometime I2C clock is kept enabled during suspend-resume. > This happens because runtime PM defers dynamic suspension and thus it may > happen that runtime PM is in active state when system enters into suspend. > In particular I2C controller that is used for CPU's DVFS is often kept ON > during suspend because CPU's voltage scaling happens quite often. >=20 > Fixes: 8ebf15e9c869 ("i2c: tegra: Move suspend handling to NOIRQ phase") > Cc: # v5.4+ > Tested-by: Thierry Reding > Signed-off-by: Dmitry Osipenko Applied to for-current, thanks! --2Z2K0IlrPCVsbNpk Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl4fTQUACgkQFA3kzBSg KbZRQQ//X0M2uETYY4ocrCKvkYWSCrKJoUsfcN6Kfkw/EfgXBWXsL7pB0v8HZtdM A6aLwrsMQgtmTDrEVkit9y8m4VHm6hRxgY85R/GJZO1QPWXK88M1R2QUbzNmZDcm owqVD5oCJnWgj6fyvQcDCkt5ke+anW3GnYUnMuP7kT6OPBbKNxQ2xzaPLO962zA4 sBGsHTnyvyMDh8Y529FxwuD3txYVt17UCEjnIp2iN4YRdMR68tLZnIFaREQrSbSo 8okn2VEJ7VZl2seQHTOBmmxBUy8GXoTGCnfOJo12dFzN2pS3EvuyCeEuF3etouem UJRZ5vYjwungQMHXsTcoN37GJwyyow4o81BgoFgRd2S69KpFPLkEQxXIQRqf+poI DugedIUViEOS+mipoM3Xd+0qsIubFz2pYNqrW29TAHD48xvi3iCAsY2emFxsCynq Hox3mLqyHzcsP6yWdNd6xiwoyuux7q5O0Qkm4Wvn0WF9h4LxkOVWYQr0RUjG1OnI 0I6IEdj+CtkuOK9JyFfpDk9mJHdt93CBpX1Y0dG6bRVNbLCyIUzwxXaYMOd+F7ZK tA1B55Kdp5cPkRYA2XARyL7LaBSBucZUzBDnU64cCTio9r0AZLmb4p3yuVY5qQU5 TD2Hz6tL/YLuS44kjqkqkQnMj6iaT4JnMdUYBo9Ew4CK0CphCHo= =bdEc -----END PGP SIGNATURE----- --2Z2K0IlrPCVsbNpk--