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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 DC563C33CB2 for ; Tue, 28 Jan 2020 12:57:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A969B24683 for ; Tue, 28 Jan 2020 12:57:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=microchiptechnology.onmicrosoft.com header.i=@microchiptechnology.onmicrosoft.com header.b="U2/Uk32Q" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726254AbgA1M5n (ORCPT ); Tue, 28 Jan 2020 07:57:43 -0500 Received: from esa2.microchip.iphmx.com ([68.232.149.84]:30906 "EHLO esa2.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726059AbgA1M5m (ORCPT ); Tue, 28 Jan 2020 07:57:42 -0500 Received-SPF: Pass (esa2.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=esa2.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 -exists:%{i}.spf.microchip.iphmx.com include:servers.mcsv.net include:mktomail.com include:spf.protection.outlook.com ~all" Received-SPF: None (esa2.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@email.microchip.com) identity=helo; client-ip=198.175.253.82; receiver=esa2.microchip.iphmx.com; envelope-from="Eugen.Hristev@microchip.com"; x-sender="postmaster@email.microchip.com"; x-conformance=spf_only Authentication-Results: esa2.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: mJeT8Udi9U9MmAA0D2IVps1hnznChJtOfxQ28M54HjbwFwAieV5HOG92xD5qF/jqXFeNtHPDF0 MCZmcNKbpmKuvUyLQ2Fo9UWImsn29aKcMo6FWoJwjEA+f5BLsl5HYAf+mEfSfo/PEcsFOt0kZs ks45iuVEJhNwEnXz2oZC7w/rjzo1DGsvQO6vVv9XwV1twKAhG4AmNukx/TdIKT0ybsMae/P9Iw FFtISsvv06a8EPXHOma4Bu3a7/73gSjRHUrOcjMdWYpIOt47/jbKoJJnik0bKvcv9MCMyRDK9E rZA= X-IronPort-AV: E=Sophos;i="5.70,373,1574146800"; d="scan'208";a="63960358" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa2.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 28 Jan 2020 05:57:41 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Tue, 28 Jan 2020 05:57:41 -0700 Received: from NAM10-DM6-obe.outbound.protection.outlook.com (10.10.215.89) by email.microchip.com (10.10.87.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Frontend Transport; Tue, 28 Jan 2020 05:57:42 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UKLHdfz2ymNCXXIM/2rmv40eHWe85guqhByvmeLOIKnnbSJ8oF+0uRT93VPls/4ZWMmcwVnXDDcY1TbF3gzcYHQqcPyQzStBWo9SO+qIda9a8XoXqdzbfDBxtTvktQXYAw3wICONp1NOZJpnMbCnSk3e/WNB0XLEYG2nagBfqWftzKeS2ezoR12euBWfEp9NCKUi/JNGKXR9CAsejvFmyKLP1ufKRptQs4sR1WRHnkcAdiXVgqWa36Xtpf4i3R0w1LOErZqFBiMQufSF9Im/lYx4kWZH0eZEVswIFfIl+QlF3uxsP/a3ECNnICH7GlKagZ7t/ISTDUGBTTmoVSoBQA== 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=qhs6f7oQUwU0gOwRfNxmUhiZW5v8xRmmgy/AsreIpWU=; b=ctQDbKL5058coOWiLITdIg+VTUOHWtNK8chWD6LC9acWiUM/hy5N1RYDgNs18cMrDTxxMHIa2wmCMowJAl5b9ZXAFRIanHmDpUcSRdMRNeCLg53R2g3Xe/YfboZePBT3OwT13j4a8lT5oKtEcLXPbt+ze+Wou60bG7wm8lOz/ul1RZmq9ce+GpxYtNg/iaG3FTiLJ2o5upzlUTMD1VhhcA612lJ4Z/18NfTm/21TbR2UsnHSptFPi/kTCEv+2bUx0O+UjvbwwBqr5NpQv4G+zJSAN3bX00iPPdAYEyiq0W7P6xthDjlWHMcp+nQCEkN542qlbKUHhP0BziU95lAs8w== 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=qhs6f7oQUwU0gOwRfNxmUhiZW5v8xRmmgy/AsreIpWU=; b=U2/Uk32QKkqTxDr6LVKNWNgjKaaWupUGCXzai3+WqXLVoONa7T7LlgBVyziDIonmkmOseQWxPPDAzFxjMHJS4q0lRrwEK4B3gKoe/nxzLaMwRbGPReIj1YRhnFKpGDi8a9zBaR7e+aySENdXix9yRt6+reCYzfKr5VAxEbxFGkI= Received: from DM5PR11MB1242.namprd11.prod.outlook.com (10.168.108.8) by DM5PR11MB1852.namprd11.prod.outlook.com (10.175.90.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2665.24; Tue, 28 Jan 2020 12:57:39 +0000 Received: from DM5PR11MB1242.namprd11.prod.outlook.com ([fe80::e5f6:d07d:d7de:ce79]) by DM5PR11MB1242.namprd11.prod.outlook.com ([fe80::e5f6:d07d:d7de:ce79%6]) with mapi id 15.20.2665.026; Tue, 28 Jan 2020 12:57:39 +0000 From: To: , , CC: , , , Subject: [PATCH v3 1/3] iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode Thread-Topic: [PATCH v3 1/3] iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode Thread-Index: AQHV1dqFsAVAQA8Fs0errk5mUZMqBQ== Date: Tue, 28 Jan 2020 12:57:39 +0000 Message-ID: <1580216189-27418-2-git-send-email-eugen.hristev@microchip.com> References: <1580216189-27418-1-git-send-email-eugen.hristev@microchip.com> In-Reply-To: <1580216189-27418-1-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-mailer: git-send-email 2.7.4 x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6a63857a-64e2-4f02-7487-08d7a3f1a828 x-ms-traffictypediagnostic: DM5PR11MB1852: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6430; x-forefront-prvs: 029651C7A1 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(376002)(366004)(39860400002)(136003)(396003)(346002)(199004)(189003)(6512007)(2616005)(107886003)(76116006)(54906003)(91956017)(110136005)(66446008)(64756008)(66556008)(66476007)(66946007)(316002)(8936002)(6486002)(186003)(5660300002)(71200400001)(81156014)(4326008)(2906002)(81166006)(478600001)(36756003)(86362001)(6506007)(8676002)(26005);DIR:OUT;SFP:1101;SCL:1;SRVR:DM5PR11MB1852;H:DM5PR11MB1242.namprd11.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: microchip.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: D9v1GP1jHW7pkckk6TpB0x9xvNnqzZ0hqKcsjetnp6GSU0W7etIxqlDVzF78fwdMGYB+SuCfWqazvr1DlElqBW5E8+C9iAqeVVhlf2gF3YcudjLyv+FlSB+ruDDJHv6QgTAa4cmHeDV0+iYhL3PBFiNOHKgFYjhesyDYSwwhZ3rNR3JH3gWU49hkBHTlRkxFyxJart7LR/gjbb+gi+2mD0M6l535vbqCyNrAltvv0SusccfS3CwlI/P1MHUdwE9XzPMDwzIkolyQCJn2DRiNEZN28j6jJjHBTaKm5zihqMKKj+q6YObJX9cxjjJKTmxp+GbwXvxTT2yD2igI8Gp5/sbaH2zCaq8f93jgUCv7LJhlMYizb4gcu2ZZ/MdQTSdfqRJED9R1K22G3mqGw5gABew/P/iRNS/Ct1szTgSJI7XTHIIct0RlJzKmlqLCsQsr x-ms-exchange-antispam-messagedata: 9AY+Bx5MYs+vHQ0q6HeILb6dkKCPdQ465C1VgesBGb6xtoo79RNZIF8dze1AMYa+KX5vNse7ARAdns+eYqvoJ8SttqWHv84w8OSMl6Y4Nkp0Was6ltLMt6lUD7wzjghaHBaXpORnIjye073QcKLRCA== Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-Network-Message-Id: 6a63857a-64e2-4f02-7487-08d7a3f1a828 X-MS-Exchange-CrossTenant-originalarrivaltime: 28 Jan 2020 12:57:39.5985 (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: Qk4/eNQTMfkWPQhlRuZ7uFm73d6K6Ra9C280mI7lnLxw8uyUEjNNwycKRdXJ52cIrNYmtcvXLuxr1NCVA7dTKZBkvLULZwhBKY50zxaFWnw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR11MB1852 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Eugen Hristev The differential channels require writing the channel offset register (COR)= . Otherwise they do not work in differential mode. The configuration of COR is missing in triggered mode. Fixes: 5e1a1da0f8c9 ("iio: adc: at91-sama5d2_adc: add hw trigger and buffer= support") Signed-off-by: Eugen Hristev --- Changes in v2: - moved to the start of the list drivers/iio/adc/at91-sama5d2_adc.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama= 5d2_adc.c index e1850f3..2a6950a 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -723,6 +723,7 @@ static int at91_adc_configure_trigger(struct iio_trigge= r *trig, bool state) =20 for_each_set_bit(bit, indio->active_scan_mask, indio->num_channels) { struct iio_chan_spec const *chan =3D at91_adc_chan_get(indio, bit); + u32 cor; =20 if (!chan) continue; @@ -732,6 +733,20 @@ static int at91_adc_configure_trigger(struct iio_trigg= er *trig, bool state) continue; =20 if (state) { + cor =3D at91_adc_readl(st, AT91_SAMA5D2_COR); + + if (chan->differential) + cor |=3D (BIT(chan->channel) | + BIT(chan->channel2)) << + AT91_SAMA5D2_COR_DIFF_OFFSET; + else + cor &=3D ~(BIT(chan->channel) << + AT91_SAMA5D2_COR_DIFF_OFFSET); + + at91_adc_writel(st, AT91_SAMA5D2_COR, cor); + } + + if (state) { at91_adc_writel(st, AT91_SAMA5D2_CHER, BIT(chan->channel)); /* enable irq only if not using DMA */ --=20 2.7.4