From patchwork Wed Sep 11 08:24:14 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eugen Hristev X-Patchwork-Id: 11140565 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BB3FC112B for ; Wed, 11 Sep 2019 08:24:28 +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 95C7A21D7D for ; Wed, 11 Sep 2019 08:24:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="BGSaIhKw"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=microchiptechnology.onmicrosoft.com header.i=@microchiptechnology.onmicrosoft.com header.b="GB8BUC1j" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 95C7A21D7D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=microchip.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=kvplxmL40bDFD9JWnPGl3Rv5BlhaV0XX+hikxUlTSYI=; b=BGSaIhKwXFnODe kJC002qLfitn6sNHImdsAg9Z1PAhqABVly8MwQwJim1wXI7IFMZpF57jo2oEsi/zpkJlvkN/kC8T3 OGokVcec2jhWYkdVDjvpWkUj2ON1mBFeCPR9e7+xc91rfeJx+TQyZ56e/epBE5nty961zZV4ezOnp vkPBCmmT1ZYYAopj9JvO/y6mEBVXb8zBWKWUvgzvKNq0r+kCcW7pMMa5RT9Ii+cXOGlHVy9GIIC+8 smiORjriSdFwY3i9RIthaU32/S9ESvMoYr14WPVWtheRGLjeMPZdtxXDEbQLgYYlQT/crf4/fK2ag /K2w1QSQc+KQqE3P7B7w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i7xvL-0003vm-On; Wed, 11 Sep 2019 08:24:23 +0000 Received: from esa3.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i7xvH-0003uq-Gz for linux-arm-kernel@lists.infradead.org; Wed, 11 Sep 2019 08:24:22 +0000 Received-SPF: Pass (esa3.microchip.iphmx.com: domain of Eugen.Hristev@microchip.com designates 198.175.253.82 as permitted sender) identity=mailfrom; client-ip=198.175.253.82; receiver=esa3.microchip.iphmx.com; envelope-from="Eugen.Hristev@microchip.com"; x-sender="Eugen.Hristev@microchip.com"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 mx a:ushub1.microchip.com a:smtpout.microchip.com a:mx1.microchip.iphmx.com a:mx2.microchip.iphmx.com include:servers.mcsv.net include:mktomail.com include:spf.protection.outlook.com ~all" Received-SPF: None (esa3.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@email.microchip.com) identity=helo; client-ip=198.175.253.82; receiver=esa3.microchip.iphmx.com; envelope-from="Eugen.Hristev@microchip.com"; x-sender="postmaster@email.microchip.com"; x-conformance=spf_only Authentication-Results: esa3.microchip.iphmx.com; spf=Pass smtp.mailfrom=Eugen.Hristev@microchip.com; spf=None smtp.helo=postmaster@email.microchip.com; dkim=pass (signature verified) header.i=@microchiptechnology.onmicrosoft.com; dmarc=pass (p=none dis=none) d=microchip.com IronPort-SDR: L0u4jR5yduQ+iqio9ZPjlHtUu5+OYzkayQmqmmZicr3Aln0nfF7HMMSIcZj4mMKmurwQdkaVDT VKIxkNpY8SmHtxtJlyddsYvT3MNN2Qotuag/hds67FO2kUSa2TX7PX+2SvSnjl7eUO/3KVzhmn ciUA3NYp+RoCUgG10Fr28Yar1vVU8DPlc9zLtEZF7kAMuhykp7phAQXaAFv6vcAnkNXqeUb3+d fB9t6HTLB9TNJsotBK1VfTwtlqkpBZ9Qcbw9RQHWUKjLeoKPdP/7Qck2Bsc+iAERcefMsKZ4PG CAI= X-IronPort-AV: E=Sophos;i="5.64,492,1559545200"; d="scan'208";a="48642329" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 11 Sep 2019 01:24:17 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Wed, 11 Sep 2019 01:24:17 -0700 Received: from NAM02-SN1-obe.outbound.protection.outlook.com (10.10.215.89) by email.microchip.com (10.10.87.72) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Frontend Transport; Wed, 11 Sep 2019 01:24:17 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=N62jA5r/qKG8bPGn/bVhNgbxFkoSGIIvRQoWdQPpUXWEW/ZmTp/mZMShzyw/VOzUBXe5sYKJm+g47YeKoLNDxR3mPPguNH9igQwyfqk4V0ALdkdN6kF4le4T3N62COIA33Bng93CIrmRgTQj7Xkc26yPyJVrN4umfZ6rl+cN364FAfwd8/IfVMAmwUUfPy7qRlsUExEcZKHg90f+pJqQpX0x/xwb3xWuALgzaGi6BnyBW3wiJeomXU2tmHDjSU/2nOC/KyzrOkUOuXUrKrsflZlQZ976eGF3LJbfnO+ksRrN2MTmIow9nx7rLK/BNhYVpJYTfUSgVuhvSl5nSpHMmw== 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=35IFG+Xf34QFpoHfJHsfSoScCqAUS+jX9A9SkKyJNx0=; b=meFIiuFuCopnnYh2i0EjM9pGruVm3XyH2ii+zKY5ognYeVxNjLxjgIhkDzJPTlDM3LoIaZmhNKoYhe0je8FF35zZ3d0Zwza8srqZ1+t4iNMBrAcU1xtabKujZrtNV1kQ10Szc44Dd4PVaiQj27aAuMaMdxGHXpclo30skEGiK02UVBM9AVl5msQSA/3bAGf+zYf3M0VrOSXUIj9LpmxTW6GP5EI4JwraE7biZmMmTwwfiyAj1cQssYL8lnpG08602Yl1vfjPR5ngCm8xsIMh/A4iEiyS1qIkySPKoM7cvKv+UmlfkurWJWn6XPi+n0RYFqtbTHPT1COQFbZutmyFFw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=microchip.com; dmarc=pass action=none header.from=microchip.com; dkim=pass header.d=microchip.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=microchiptechnology.onmicrosoft.com; s=selector2-microchiptechnology-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=35IFG+Xf34QFpoHfJHsfSoScCqAUS+jX9A9SkKyJNx0=; b=GB8BUC1jMY9ZC9nUoFBzObZXpy1eeSaVY5aZWk0/zOv9QZl3RcUtgmLw0ZhuAvaK0cEZQnui789BHoBAvY55CYYIPFZ1C0lD13nOTEjCcJX+Xt0dDp5cL3Im9thqs5QwTWDP7i53bDb2Rv7o6KVxszmevvcqBbViWroWmWWZasA= Received: from DM5PR11MB1242.namprd11.prod.outlook.com (10.168.108.8) by DM5PR11MB1452.namprd11.prod.outlook.com (10.172.36.135) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2241.18; Wed, 11 Sep 2019 08:24:14 +0000 Received: from DM5PR11MB1242.namprd11.prod.outlook.com ([fe80::a141:1974:9668:fbe2]) by DM5PR11MB1242.namprd11.prod.outlook.com ([fe80::a141:1974:9668:fbe2%12]) with mapi id 15.20.2241.018; Wed, 11 Sep 2019 08:24:14 +0000 From: To: , , , , , , , , , Subject: [PATCH v5 0/9] i2c: add support for filters Thread-Topic: [PATCH v5 0/9] i2c: add support for filters Thread-Index: AQHVaHpLr7113TR4Hk2itVe9BFeajQ== Date: Wed, 11 Sep 2019 08:24:14 +0000 Message-ID: <1568189911-31641-1-git-send-email-eugen.hristev@microchip.com> Accept-Language: en-US, ro-RO Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1P189CA0008.EURP189.PROD.OUTLOOK.COM (2603:10a6:802:2a::21) To DM5PR11MB1242.namprd11.prod.outlook.com (2603:10b6:3:14::8) x-mailer: git-send-email 2.7.4 x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: baa66c79-36bd-411b-8232-08d736916e23 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600166)(711020)(4605104)(1401327)(2017052603328)(7193020); SRVR:DM5PR11MB1452; x-ms-traffictypediagnostic: DM5PR11MB1452: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7219; x-forefront-prvs: 0157DEB61B x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(346002)(376002)(39860400002)(396003)(366004)(136003)(189003)(199004)(52116002)(3846002)(2501003)(66556008)(66476007)(66946007)(54906003)(110136005)(478600001)(25786009)(316002)(6436002)(6116002)(66066001)(386003)(14454004)(2906002)(102836004)(486006)(476003)(2616005)(6506007)(186003)(26005)(4326008)(8936002)(81166006)(81156014)(7736002)(66446008)(8676002)(5660300002)(50226002)(64756008)(86362001)(2201001)(99286004)(71190400001)(71200400001)(53936002)(36756003)(256004)(107886003)(6512007)(305945005)(6486002)(921003)(1121003); DIR:OUT; SFP:1101; SCL:1; SRVR:DM5PR11MB1452; H:DM5PR11MB1242.namprd11.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: FU2c8nyrDhiRXvjneemGrOtUMzAuzl9nYdXmolGmiVVnlGEudCJhDCIIDXeVz+TpfpBAMiCos9yYtar1LlXJzd3XYJdUkfuCKXtmTAvRVx7MvVqBc+2BDLAPktozJHKhQ9rDlFEK4pjGf6XY+o66yHT/yF3HWh7lxDKRllpFNCReKxXK0+We69jnrl5VbjZG8dLcam/YgcTVrRNcV8oGd9xmKchAZYfnS6IwPhyILwUo6fZRT7qCzDVq7XA83gqJqUsbqAbNnPCi/ipRXrkQWhD9RFibEgipfkiKfFNvDEYol4VIjVCx70pe7V09OI3DZ5cB7O3tbmDdBFDYFcQlURhUQboHShxH0d86L2sVhOzt/h74pcT/MsB7Q0p1ffjkhqxu94zDsF3CVIMkIplrMKoIw2a7iN89Qe2YxFS+X6I= MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: baa66c79-36bd-411b-8232-08d736916e23 X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Sep 2019 08:24:14.4852 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3f4057f3-b418-4d4e-ba84-d55b4e897d88 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: p0BugN2odvcBkhXKrhdNsvNrmkuxwsvyhgItxnDE2EEXI8THYUk1dNR0dhSSUqa/+iwrfQJelSlHeKHeolkfgiMryPAtFmV6uOCH70kGprM= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR11MB1452 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190911_012419_633699_6DFAAF96 X-CRM114-Status: GOOD ( 14.16 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [68.232.153.233 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eugen.Hristev@microchip.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Eugen Hristev Hello, This series adds support for analog and digital filters for i2c controllers This series is based on the series: [PATCH v2 0/9] i2c: at91: filters support for at91 SoCs and later [PATCH v4 0/9] i2c: add support for filters and enhanced to add the bindings for all controllers plus an extra bindings for the width of the spikes in nanoseconds (digital filters) and cut-off frequency (analog filters) First, bindings are created for 'i2c-analog-filter' 'i2c-digital-filter' 'i2c-digital-filter-width-ns' 'i2c-analog-filter-cutoff-frequency' The support is added in the i2c core to retrieve filter width/cutoff frequency and add it to the timings structure. Next, the at91 driver is enhanced for supporting digital filter, advanced digital filter (with selectable spike width) and the analog filter. Finally the device tree for two boards are modified to make use of the new properties. This series is the result of the comments on the ML in the direction requested: to make the bindings globally available for i2c drivers. Changes in v5: - renamed i2c-filter-width-ns to i2c-digital-filter-width-ns as this is applicable only to digital filter - created new binding i2c-digital-filter-width-ns for analog filters. Changes in v4: - renamed i2c-ana-filter to i2c-analog-filter - renamed i2c-dig-filter to i2c-digital-filter Changes in v3: - made bindings global for i2c controllers and modified accordingly - gave up PADFCDF bit because it's a lack in datasheet - the computation on the width of the spike is based on periph clock as it is done for hold time. Changes in v2: - added device tree bindings and support for enable-ana-filt and enable-dig-filt - added the new properties to the DT for sama5d4_xplained/sama5d2_xplained Eugen Hristev (9): dt-bindings: i2c: at91: add new compatible dt-bindings: i2c: add bindings for i2c analog and digital filter i2c: add support for filters optional properties i2c: at91: add new platform support for sam9x60 i2c: at91: add support for digital filtering i2c: at91: add support for advanced digital filtering i2c: at91: add support for analog filtering ARM: dts: at91: sama5d2_xplained: add analog and digital filter for i2c ARM: dts: at91: sama5d4_xplained: add digital filter for i2c Documentation/devicetree/bindings/i2c/i2c-at91.txt | 3 +- Documentation/devicetree/bindings/i2c/i2c.txt | 18 ++++++++ arch/arm/boot/dts/at91-sama5d2_xplained.dts | 6 +++ arch/arm/boot/dts/at91-sama5d4_xplained.dts | 1 + drivers/i2c/busses/i2c-at91-core.c | 38 +++++++++++++++++ drivers/i2c/busses/i2c-at91-master.c | 49 ++++++++++++++++++++-- drivers/i2c/busses/i2c-at91.h | 13 ++++++ drivers/i2c/i2c-core-base.c | 6 +++ include/linux/i2c.h | 6 +++ 9 files changed, 136 insertions(+), 4 deletions(-) Acked-by: Ludovic Desroches Reviewed-by: Peter Rosin