From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: Re: [PATCH] i2c: s3c2410: remove superfluous runtime PM calls Date: Sat, 19 Dec 2015 22:57:52 +0100 Message-ID: <20151219215752.GA1247@tetsubishi> References: <20151219105030.GA2571@katana> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="FCuugMFkClbJLl1L" Return-path: Received: from sauhun.de ([89.238.76.85]:33412 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753733AbbLSV6I (ORCPT ); Sat, 19 Dec 2015 16:58:08 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-i2c-owner@vger.kernel.org List-Id: linux-i2c@vger.kernel.org To: Alan Stern Cc: Sylwester Nawrocki , linux-i2c@vger.kernel.org, linux-pm@vger.kernel.org, Charles Keepax , Lars-Peter Clausen , Krzysztof Kozlowski --FCuugMFkClbJLl1L Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > > Asking linux-pm for help here: If we want to support RuntimePM for I2C > > clients, do we need to enable RuntimePM on the logical I2C adapter > > device (the bus master) which is already marked using > > pm_runtime_no_callbacks? >=20 > In theory you don't need to. But there are some advantages if you do:=20 > You get automatic runtime PM time accounting for the adapter device=20 > (how much time active and how much suspended), and suspend events will=20 > propagate from the I2C clients all the way up to the adapter's parent. That's exactly what I want. Thank you very much! --FCuugMFkClbJLl1L Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJWddLfAAoJEBQN5MwUoCm2VgcQAJx+dNIU++AH6GiME8BXZhhH PVDBMg9DzdEytODZlQORBFhANkjrvFnl1OHSi9TEPqZvV6yb3ZKdbvF5n/YYxYtP QPl3g3kn6VxaEftmvJje/r9NqPBZ7ihlHKu/zEbjVb89euyLVmgRgAM59n4j1mRy hiDLs4KTmPriklfg10R7ib00fEZA52+E038GVpgSinCM/ldStyHN0rTxSXeWdUmj LmDA6mlsgoZUNBXmYp8BAqY885azOqeMn3my3eYcYR/gHIUiPIEngEYGpD61IIYV gKG/NcGLKFrzpMSVglgrr6wvWboCkbawEckrdWOTC3zdmM4syfdLcp6Inzt/vcnR 7ResqVYylja3YwOCeZ6HZUCC/wnmfGHCYaN3ATFICMumdsWeqst4OHiZ4R3hAxEg U31l9bubq1WsdRyLe5yilQGzLGXKYTMajQd3zrKHpNTLgW4T+zZx/xwqGdr+AR9p AHttqZ3SXeuBwFhNtE1iOLpwZ4xy9j4VM5eko4CqxEMb+5cssru1zJuK09L0ipMh pgoXJIqdc0SiBlP8TM+wDFch+Fu0ks8BCSUQoZmdM/qWWk4bj23qr+k0sM7DVX2B aCZbOpJaZHivfZDxdqwt/zgNV34pK9mz4H3TCfCXZJqYweyCG21Q0juwW8U/xlrv YN95JWfomQncT+Grq2D9 =ZnPK -----END PGP SIGNATURE----- --FCuugMFkClbJLl1L--