From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 63245C04AAF for ; Mon, 20 May 2019 08:58:20 +0000 (UTC) Received: from lists.ozlabs.org (unknown [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9D1D5204FD for ; Mon, 20 May 2019 08:58:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9D1D5204FD Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=denx.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 456t8n2dZRzDqKh for ; Mon, 20 May 2019 18:58:17 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=ucw.cz (client-ip=195.113.26.193; helo=atrey.karlin.mff.cuni.cz; envelope-from=pavel@ucw.cz; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=denx.de Received: from atrey.karlin.mff.cuni.cz (atrey.karlin.mff.cuni.cz [195.113.26.193]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 456t7J1xxSzDqGb for ; Mon, 20 May 2019 18:56:54 +1000 (AEST) Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id 197348021D; Mon, 20 May 2019 10:56:38 +0200 (CEST) Date: Mon, 20 May 2019 10:56:47 +0200 From: Pavel Machek To: Ran Wang Subject: Re: [PATCH V2 3/3] soc: fsl: add RCPM driver Message-ID: <20190520085647.GA9748@amd> References: <20190517033946.30763-1-ran.wang_1@nxp.com> <20190517033946.30763-3-ran.wang_1@nxp.com> <20190519213844.GH31403@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="nFreZHaLTZJo0R7j" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Len Brown , "devicetree@vger.kernel.org" , Pavel Machek , "linux-pm@vger.kernel.org" , "Rafael J . Wysocki" , "linux-kernel@vger.kernel.org" , Leo Li , Rob Herring , Greg Kroah-Hartman , "linuxppc-dev@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" --nFreZHaLTZJo0R7j Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > > +static int rcpm_pm_prepare(struct device *dev) { > > > + struct device_node *np =3D dev->of_node; > > > + struct wakeup_source *ws; > > > + struct rcpm *rcpm; > > > + u32 value[RCPM_WAKEUP_CELL_MAX_SIZE + 1], tmp; > > > + int i, ret; > > > + > > > + rcpm =3D dev_get_drvdata(dev); > > > + if (!rcpm) > > > + return -EINVAL; > > > + > > > + /* Begin with first registered wakeup source */ > > > + ws =3D wakeup_source_get_next(NULL); > > > + while (ws) { > >=20 > > while (ws =3D wakeup_source_get_next(NULL)) ? >=20 > Actually, we only pass NULL to wakeup_source_get_next() at very first > call to get 1st wakeup source. Then in the while loop, we will fetch > next source but not 1st, that's different. I am afraid your suggestion > is not quite correct. Sorry, I seen your next version before seeing this explanation. You are right, but the current code is "interesting". What about ws =3D NULL; while (ws =3D wakeup_source_get_next(NULL)) ... then? Best regards, Pavel --=20 DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany --nFreZHaLTZJo0R7j Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlzia88ACgkQMOfwapXb+vLCHQCdEiZVnts+sVGDltC60TnL3F9y ltIAn0M2k/oHNFq1zm74JskvAw6PG/L7 =/fdT -----END PGP SIGNATURE----- --nFreZHaLTZJo0R7j--