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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM5PR0402MB2756.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9dde1c90-0730-4f50-5aaf-08d957f4c463 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Aug 2021 09:38:22.7518 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: MmSx3xQkeRwQoUOYV/5tAaZ1AtRdp/n7V9o0o3bfCJ2O9pbUPWX3wGKhYwdIYYRdsnp/AOs1p3or3Uy+SqXRGg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB8006 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org > Subject: [PATCH v2 04/18] soc: imx: gpcv2: add lockdep annotation >=20 > Some of the GPCv2 power domains are nested inside each other without > visibility to lockdep at the genpd level, as they are in separate driver = instances > and don't have a parent/child power-domain relationship. >=20 > Add a subclass annotation to the nested domains to let lockdep know that = it is > okay to take the genpd lock in a nested fashion. >=20 > Signed-off-by: Lucas Stach Reviewed-by: Peng Fan > --- > drivers/soc/imx/gpcv2.c | 4 ++++ > 1 file changed, 4 insertions(+) >=20 > diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index > 2c43e74db0be..35f26f57d1ac 100644 > --- a/drivers/soc/imx/gpcv2.c > +++ b/drivers/soc/imx/gpcv2.c > @@ -898,6 +898,10 @@ static int imx_pgc_domain_probe(struct > platform_device *pdev) > goto out_domain_unmap; > } >=20 > + if (IS_ENABLED(CONFIG_LOCKDEP) && > + of_property_read_bool(domain->dev->of_node, "power-domains")) > + lockdep_set_subclass(&domain->genpd.mlock, 1); > + > ret =3D of_genpd_add_provider_simple(domain->dev->of_node, > &domain->genpd); > if (ret) { > -- > 2.30.2 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=-14.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 30985C4338F for ; Thu, 5 Aug 2021 09:41:34 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 ED1DD60F22 for ; 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Thu, 5 Aug 2021 09:38:22 +0000 Received: from AM5PR0402MB2756.eurprd04.prod.outlook.com ([fe80::3839:217:6252:b1f8]) by AM5PR0402MB2756.eurprd04.prod.outlook.com ([fe80::3839:217:6252:b1f8%11]) with mapi id 15.20.4373.026; Thu, 5 Aug 2021 09:38:22 +0000 From: Peng Fan To: Lucas Stach , Shawn Guo , Rob Herring CC: dl-linux-imx , Adam Ford , Frieder Schrempf , Marek Vasut , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "kernel@pengutronix.de" , "patchwork-lst@pengutronix.de" Subject: RE: [PATCH v2 04/18] soc: imx: gpcv2: add lockdep annotation Thread-Topic: [PATCH v2 04/18] soc: imx: gpcv2: add lockdep annotation Thread-Index: AQHXfnGVp9bLkqVl2k2uWbiAI9sIwqtkvk3g Date: Thu, 5 Aug 2021 09:38:22 +0000 Message-ID: References: <20210716232916.3572966-1-l.stach@pengutronix.de> <20210721204703.1424034-1-l.stach@pengutronix.de> <20210721204703.1424034-5-l.stach@pengutronix.de> In-Reply-To: <20210721204703.1424034-5-l.stach@pengutronix.de> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: pengutronix.de; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > Subject: [PATCH v2 04/18] soc: imx: gpcv2: add lockdep annotation > > Some of the GPCv2 power domains are nested inside each other without > visibility to lockdep at the genpd level, as they are in separate driver instances > and don't have a parent/child power-domain relationship. > > Add a subclass annotation to the nested domains to let lockdep know that it is > okay to take the genpd lock in a nested fashion. > > Signed-off-by: Lucas Stach Reviewed-by: Peng Fan > --- > drivers/soc/imx/gpcv2.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index > 2c43e74db0be..35f26f57d1ac 100644 > --- a/drivers/soc/imx/gpcv2.c > +++ b/drivers/soc/imx/gpcv2.c > @@ -898,6 +898,10 @@ static int imx_pgc_domain_probe(struct > platform_device *pdev) > goto out_domain_unmap; > } > > + if (IS_ENABLED(CONFIG_LOCKDEP) && > + of_property_read_bool(domain->dev->of_node, "power-domains")) > + lockdep_set_subclass(&domain->genpd.mlock, 1); > + > ret = of_genpd_add_provider_simple(domain->dev->of_node, > &domain->genpd); > if (ret) { > -- > 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel