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=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 2D971C2D0C3 for ; Mon, 16 Dec 2019 14:35:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 00C2D206D7 for ; Mon, 16 Dec 2019 14:35:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="DX+6a4ic" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728078AbfLPOfr (ORCPT ); Mon, 16 Dec 2019 09:35:47 -0500 Received: from mail-eopbgr60089.outbound.protection.outlook.com ([40.107.6.89]:63393 "EHLO EUR04-DB3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728014AbfLPOfr (ORCPT ); Mon, 16 Dec 2019 09:35:47 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HPcO1pLSu4ZkjnyYYNStIlQ47w8CAN9kHnaHlNaCJeAU+0ReIYMwxHrlvTPKV1j0AEvriqDuV5oUJmJvCrU0tlnUtyUv+HEMfo2SePPr3i4L0CcntdmnTn73yMV27T2ko/jSmmxSsjit0MmX4Fx3oKX+ewojnU1h8Mt6Mu8OG1BXiewFq/C0/mPihaePmzozWeagme3mwOLE2YqYrbJ8633weOZm1MVne4RLf3Y45LDv3m9G1KaTodcA6h16ofofl2rUm98r8ST9dHNRBOMebnTx44/8E0NYE/uUHC8de8NggPJyXVvZe283pWoOOoLXobCDFaEoPMSSE1xbySzsIw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=qxaAqFX80L1buzhWJZDDzjc1AnduXYvz5s91FeSRXxU=; b=ULpIs7Xv4mXlqUrA9WqS/b/jid5mUEOxdrAD+pnFv3DcZzUS6nZLs/dp/PTeKkPrLuo+Qi6OJqJ5xxz92H2JYGq90SmotdDN7cGSgbe8gcNrteQhO6ppwLJ3ScXPi6y1onymPSjSKGd7Tti884qPryN4UM9o7wJbkrCQgc/vqvUHEKw4PreeR7QBEzlKDu0ZHF/3I6Cp+/Juq92CudQdrH9hXakgAshdOLuV0t/ZztCEdI3OxCPhaO/usTFnoxGfcvMienuvRs+8mrz2mF+Fnv1LXG6vRQqgc23HryiPsDaY4frTCqzmrSt8fpvcSKSakXjYtCgpzTxgZtx4UGe2cg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=qxaAqFX80L1buzhWJZDDzjc1AnduXYvz5s91FeSRXxU=; b=DX+6a4icQ9ymbNZ/2JNoTz4z45Bd0esNw89gqdKWLvMJVXczqPeKri8+LzT9qlwchY1Puh1q4n34KWerYKaqTEcMsDLd/6hC3kQFeR9rNp78kSb7TEKTqc8j7dzFTIeXQPl7wJNXitnTNVBjPrZuXHPKMLYhe8d94DgGNQAdWjg= Received: from VI1PR04MB7023.eurprd04.prod.outlook.com (10.186.159.144) by VI1PR04MB4077.eurprd04.prod.outlook.com (52.134.123.138) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2538.17; Mon, 16 Dec 2019 14:35:43 +0000 Received: from VI1PR04MB7023.eurprd04.prod.outlook.com ([fe80::2c49:44c8:2c02:68b1]) by VI1PR04MB7023.eurprd04.prod.outlook.com ([fe80::2c49:44c8:2c02:68b1%5]) with mapi id 15.20.2538.019; Mon, 16 Dec 2019 14:35:42 +0000 From: Leonard Crestez To: Georgi Djakov , Rob Herring , Chanwoo Choi CC: =?iso-8859-2?Q?Artur_=A6wigo=F1?= , Alexandre Bailon , "Rafael J. Wysocki" , Jacky Bai , Anson Huang , Abel Vesa , Krzysztof Kozlowski , MyungJoo Ham , Kyungmin Park , Saravana Kannan , Mark Rutland , Viresh Kumar , Shawn Guo , Aisheng Dong , Fabio Estevam , Stephen Boyd , Michael Turquette , Matthias Kaehlcke , Angus Ainslie , Martin Kepplinger , Silvano Di Ninno , "linux-pm@vger.kernel.org" , "kernel@pengutronix.de" , dl-linux-imx , "devicetree@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH RFC v6 5/9] interconnect: imx: Add platform driver for imx8mm Thread-Topic: [PATCH RFC v6 5/9] interconnect: imx: Add platform driver for imx8mm Thread-Index: AQHVmyea6vLOQFY6S0eW72n/jayYZA== Date: Mon, 16 Dec 2019 14:35:42 +0000 Message-ID: References: <60d36b71294d162d25c9f889177cab30e41d5ae7.1573761527.git.leonard.crestez@nxp.com> <537baef4-d3bf-8de9-d168-21af0062b30a@linaro.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=leonard.crestez@nxp.com; x-originating-ip: [89.37.124.34] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 0d4f113c-6dde-4463-de75-08d782353ae5 x-ms-traffictypediagnostic: VI1PR04MB4077:|VI1PR04MB4077: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:9508; x-forefront-prvs: 02530BD3AA x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(39860400002)(366004)(136003)(396003)(346002)(376002)(189003)(199004)(9686003)(66946007)(64756008)(66446008)(66556008)(66476007)(7416002)(76116006)(55016002)(316002)(54906003)(110136005)(71200400001)(33656002)(8676002)(81166006)(7696005)(6506007)(53546011)(86362001)(5660300002)(52536014)(186003)(478600001)(4326008)(26005)(8936002)(91956017)(81156014)(2906002)(44832011)(32563001);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR04MB4077;H:VI1PR04MB7023.eurprd04.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0d4f113c-6dde-4463-de75-08d782353ae5 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Dec 2019 14:35:42.7731 (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: jF9cGhZv/3JPAKRwVo+9duJE6EMGym2jkNlsatBO9dG5Sa2e4wnK234Z0c/ezFW2LvSWqhpCQ9lOZrx3PQcRGg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4077 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On 12.12.2019 09:35, Georgi Djakov wrote:=0A= > Hi Leonard,=0A= > =0A= > On 11/14/19 22:09, Leonard Crestez wrote:=0A= >> Add a platform driver for the i.MX8MM SoC describing bus topology.=0A= >>=0A= >> Bandwidth adjustments is currently only supported on the DDRC and main= =0A= >> NOC. Scaling for the vpu/gpu/display NICs could be added in the future.= =0A= >>=0A= >> Signed-off-by: Alexandre Bailon =0A= >> Signed-off-by: Leonard Crestez =0A= >> ---=0A= >> drivers/interconnect/imx/Kconfig | 4 +=0A= >> drivers/interconnect/imx/Makefile | 1 +=0A= >> drivers/interconnect/imx/imx8mm.c | 105 ++++++++++++++++++++++= =0A= >> include/dt-bindings/interconnect/imx8mm.h | 49 ++++++++++=0A= >> 4 files changed, 159 insertions(+)=0A= >> create mode 100644 drivers/interconnect/imx/imx8mm.c=0A= >> create mode 100644 include/dt-bindings/interconnect/imx8mm.h=0A= >>=0A= >> diff --git a/drivers/interconnect/imx/Kconfig b/drivers/interconnect/imx= /Kconfig=0A= >> index 7d81d3c83a61..15671fe7f600 100644=0A= >> --- a/drivers/interconnect/imx/Kconfig=0A= >> +++ b/drivers/interconnect/imx/Kconfig=0A= >> @@ -1,5 +1,9 @@=0A= >> config INTERCONNECT_IMX=0A= >> bool "i.MX interconnect drivers"=0A= >> depends on ARCH_MXC || COMPILE_TEST=0A= >> help=0A= >> Generic interconnect driver for i.MX SOCs=0A= >> +=0A= >> +config INTERCONNECT_IMX8MM=0A= >> + def_bool y=0A= > =0A= > Can this be a module?=0A= =0A= Yes. I'll turn this into a tristate; at the very least it would be =0A= useful to check modprobe cycling.=0A= =0A= By default imx boots with bus frequency set to "high" so there are no =0A= hard dependencies on interconnect.=0A= =0A= Historically in our vendor tree we had boot drivers which made bus =0A= scaling requests (like sdcard and ethernet) but I'm not sure this is =0A= strictly required.=0A= =0A= >> + depends on INTERCONNECT_IMX=0A= >> diff --git a/drivers/interconnect/imx/Makefile b/drivers/interconnect/im= x/Makefile=0A= >> index bb92fd9fe4a5..5f658c1608a6 100644=0A= >> --- a/drivers/interconnect/imx/Makefile=0A= >> +++ b/drivers/interconnect/imx/Makefile=0A= >> @@ -1 +1,2 @@=0A= >> obj-$(CONFIG_INTERCONNECT_IMX) +=3D imx.o=0A= >> +obj-$(CONFIG_INTERCONNECT_IMX8MM) +=3D imx8mm.o=0A= >> diff --git a/drivers/interconnect/imx/imx8mm.c b/drivers/interconnect/im= x/imx8mm.c=0A= >> new file mode 100644=0A= >> index 000000000000..acc002153729=0A= >> --- /dev/null=0A= > =0A= > Thanks,=0A= > Georgi=0A= > =0A= =0A=