From patchwork Wed Jun 17 13:35:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Darius Berghe X-Patchwork-Id: 11609891 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 4F64C618 for ; Wed, 17 Jun 2020 13:33:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4247721532 for ; Wed, 17 Jun 2020 13:33:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726480AbgFQNdC (ORCPT ); Wed, 17 Jun 2020 09:33:02 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:21874 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726355AbgFQNdC (ORCPT ); Wed, 17 Jun 2020 09:33:02 -0400 Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 05HDSVMJ029699; Wed, 17 Jun 2020 09:33:00 -0400 Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com with ESMTP id 31q66c2jnt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Jun 2020 09:32:59 -0400 Received: from SCSQMBX11.ad.analog.com (scsqmbx11.ad.analog.com [10.77.17.10]) by nwd2mta3.analog.com (8.14.7/8.14.7) with ESMTP id 05HDWwtg028844 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Wed, 17 Jun 2020 09:32:58 -0400 Received: from SCSQMBX10.ad.analog.com (10.77.17.5) by SCSQMBX11.ad.analog.com (10.77.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Wed, 17 Jun 2020 06:32:56 -0700 Received: from zeus.spd.analog.com (10.64.82.11) by SCSQMBX10.ad.analog.com (10.77.17.5) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Wed, 17 Jun 2020 06:32:56 -0700 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 05HDWtWN018768; Wed, 17 Jun 2020 09:32:55 -0400 From: Darius Berghe To: , CC: Subject: [PATCH v1 1/3] iio:adc:ltc2471: add match table for existing devices Date: Wed, 17 Jun 2020 16:35:21 +0300 Message-ID: <20200617133523.58158-1-darius.berghe@analog.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.687 definitions=2020-06-17_03:2020-06-17,2020-06-17 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=991 clxscore=1015 suspectscore=0 mlxscore=0 phishscore=0 spamscore=0 priorityscore=1501 malwarescore=0 cotscore=-2147483648 bulkscore=0 adultscore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006170104 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org OF style match table is the proper way of matching device tree nodes with drivers and such table was missing, this commit adds it. Signed-off-by: Darius Berghe --- drivers/iio/adc/ltc2471.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/iio/adc/ltc2471.c b/drivers/iio/adc/ltc2471.c index 55fab612843a..0e5cdb43a943 100644 --- a/drivers/iio/adc/ltc2471.c +++ b/drivers/iio/adc/ltc2471.c @@ -143,9 +143,17 @@ static const struct i2c_device_id ltc2471_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, ltc2471_i2c_id); +static const struct of_device_id ltc2471_of_match[] = { + { .compatible = "adi,ltc2471" }, + { .compatible = "adi,ltc2473" }, + {} +}; +MODULE_DEVICE_TABLE(of, ltc2471_of_match); + static struct i2c_driver ltc2471_i2c_driver = { .driver = { .name = "ltc2471", + .of_match_table = of_match_ptr(ltc2471_of_match) }, .probe = ltc2471_i2c_probe, .id_table = ltc2471_i2c_id, From patchwork Wed Jun 17 13:35:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Darius Berghe X-Patchwork-Id: 11609893 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 DC727618 for ; Wed, 17 Jun 2020 13:33:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C6C9821532 for ; Wed, 17 Jun 2020 13:33:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726939AbgFQNdD (ORCPT ); Wed, 17 Jun 2020 09:33:03 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:22912 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726369AbgFQNdC (ORCPT ); Wed, 17 Jun 2020 09:33:02 -0400 Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 05HDUKZU019771; Wed, 17 Jun 2020 09:33:01 -0400 Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com with ESMTP id 31q670aj5t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Jun 2020 09:32:59 -0400 Received: from ASHBMBX8.ad.analog.com (ashbmbx8.ad.analog.com [10.64.17.5]) by nwd2mta3.analog.com (8.14.7/8.14.7) with ESMTP id 05HDWwgE028848 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Wed, 17 Jun 2020 09:32:58 -0400 Received: from ASHBMBX8.ad.analog.com (10.64.17.5) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Wed, 17 Jun 2020 09:32:57 -0400 Received: from zeus.spd.analog.com (10.64.82.11) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Wed, 17 Jun 2020 09:32:57 -0400 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 05HDWtWO018768; Wed, 17 Jun 2020 09:32:56 -0400 From: Darius Berghe To: , CC: Subject: [PATCH v1 2/3] iio:adc:ltc2471: add ltc2461/ltc2463 compatible strings Date: Wed, 17 Jun 2020 16:35:22 +0300 Message-ID: <20200617133523.58158-2-darius.berghe@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200617133523.58158-1-darius.berghe@analog.com> References: <20200617133523.58158-1-darius.berghe@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.687 definitions=2020-06-17_03:2020-06-17,2020-06-17 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=999 clxscore=1011 cotscore=-2147483648 spamscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 phishscore=0 mlxscore=0 lowpriorityscore=0 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006170104 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add compatible strings for these devices in the existing ltc2471 driver. The only difference between 2461/2463 and 2471/2473 is the output rate of fixed 60sps and selectible 208/833sps respectively. The driver does not implement changing the sampling rate so the new devices are fully code comptible with this driver. Signed-off-by: Darius Berghe --- drivers/iio/adc/ltc2471.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/drivers/iio/adc/ltc2471.c b/drivers/iio/adc/ltc2471.c index 0e5cdb43a943..098765882bba 100644 --- a/drivers/iio/adc/ltc2471.c +++ b/drivers/iio/adc/ltc2471.c @@ -1,7 +1,9 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Driver for Linear Technology LTC2471 and LTC2473 voltage monitors + * Driver for Linear Technology LTC2471, LTC2473, LTC2461 and LTC2463 voltage + * monitors. * The LTC2473 is identical to the 2471, but reports a differential signal. + * The LTC2463 is identical to the 2461, but reports a differential signal. * * Copyright (C) 2017 Topic Embedded Products * Author: Mike Looijmans @@ -17,6 +19,8 @@ enum ltc2471_chips { ltc2471, ltc2473, + ltc2461, + ltc2463 }; struct ltc2471_data { @@ -120,7 +124,7 @@ static int ltc2471_i2c_probe(struct i2c_client *client, indio_dev->name = id->name; indio_dev->info = <c2471_info; indio_dev->modes = INDIO_DIRECT_MODE; - if (id->driver_data == ltc2473) + if (id->driver_data == ltc2473 || id->driver_data == ltc2463) indio_dev->channels = ltc2473_channel; else indio_dev->channels = ltc2471_channel; @@ -139,6 +143,8 @@ static int ltc2471_i2c_probe(struct i2c_client *client, static const struct i2c_device_id ltc2471_i2c_id[] = { { "ltc2471", ltc2471 }, { "ltc2473", ltc2473 }, + { "ltc2461", ltc2461 }, + { "ltc2463", ltc2463 }, {} }; MODULE_DEVICE_TABLE(i2c, ltc2471_i2c_id); @@ -146,6 +152,8 @@ MODULE_DEVICE_TABLE(i2c, ltc2471_i2c_id); static const struct of_device_id ltc2471_of_match[] = { { .compatible = "adi,ltc2471" }, { .compatible = "adi,ltc2473" }, + { .compatible = "adi,ltc2461" }, + { .compatible = "adi,ltc2463" }, {} }; MODULE_DEVICE_TABLE(of, ltc2471_of_match); @@ -161,6 +169,6 @@ static struct i2c_driver ltc2471_i2c_driver = { module_i2c_driver(ltc2471_i2c_driver); -MODULE_DESCRIPTION("LTC2471/LTC2473 ADC driver"); +MODULE_DESCRIPTION("LTC2471/LTC2473/LTC2461/LTC2463 ADC driver"); MODULE_AUTHOR("Topic Embedded Products"); MODULE_LICENSE("GPL v2"); From patchwork Wed Jun 17 13:35:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Darius Berghe X-Patchwork-Id: 11609895 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 99E78618 for ; Wed, 17 Jun 2020 13:33:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8BEEC21556 for ; Wed, 17 Jun 2020 13:33:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726949AbgFQNdG (ORCPT ); Wed, 17 Jun 2020 09:33:06 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:24758 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726355AbgFQNdD (ORCPT ); Wed, 17 Jun 2020 09:33:03 -0400 Received: from pps.filterd (m0167088.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 05HDTnIQ019360; Wed, 17 Jun 2020 09:33:02 -0400 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com with ESMTP id 31q670aj5y-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Jun 2020 09:33:01 -0400 Received: from SCSQMBX10.ad.analog.com (scsqmbx10.ad.analog.com [10.77.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 05HDWxkd008815 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Wed, 17 Jun 2020 09:33:00 -0400 Received: from SCSQMBX10.ad.analog.com (10.77.17.5) by SCSQMBX10.ad.analog.com (10.77.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Wed, 17 Jun 2020 06:32:58 -0700 Received: from zeus.spd.analog.com (10.64.82.11) by SCSQMBX10.ad.analog.com (10.77.17.5) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Wed, 17 Jun 2020 06:32:58 -0700 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 05HDWtWP018768; Wed, 17 Jun 2020 09:32:57 -0400 From: Darius Berghe To: , CC: Subject: [PATCH v1 3/3] iio:adc:ltc2471: add dt binding yaml Date: Wed, 17 Jun 2020 16:35:23 +0300 Message-ID: <20200617133523.58158-3-darius.berghe@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200617133523.58158-1-darius.berghe@analog.com> References: <20200617133523.58158-1-darius.berghe@analog.com> MIME-Version: 1.0 X-ADIRoutedOnPrem: True X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216,18.0.687 definitions=2020-06-17_03:2020-06-17,2020-06-17 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 mlxlogscore=999 clxscore=1015 cotscore=-2147483648 spamscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 phishscore=0 mlxscore=0 lowpriorityscore=0 adultscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006170104 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add dt binding documentation for ltc2471 driver. This covers all supported devices. Signed-off-by: Darius Berghe --- .../bindings/iio/adc/adi,ltc2471.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ltc2471.yaml diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ltc2471.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ltc2471.yaml new file mode 100644 index 000000000000..0b84e14ec984 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/adc/adi,ltc2471.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright 2020 Analog Devices Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bindings/iio/adc/adi,ltc2471.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices LTC2471 16-bit I2C Sigma-Delta ADC + +maintainers: + - Mike Looijmans + +description: | + Analog Devices LTC2471 (single-ended) and LTC2473 (differential) 16-bit + I2C Sigma-Delta ADC with selectable 208/833sps output rate. + https://www.analog.com/media/en/technical-documentation/data-sheets/24713fb.pdf + + Analog Devices LTC2461 (single-ended) and LTC2463 (differential) 16-bit + I2C Sigma-Delta ADC with 60sps output rate. + https://www.analog.com/media/en/technical-documentation/data-sheets/24613fa.pdf + +properties: + compatible: + enum: + - adi,ltc2471 + - adi,ltc2473 + - adi,ltc2461 + - adi,ltc2463 + + reg: + maxItems: 1 + +required: + - compatible + - reg + +examples: + - | + i2c0 { + ltc2461@14 { + compatible = "ltc2461"; + reg = <0x14>; + }; + }; + - | + i2c0 { + ltc2473@54 { + compatible = "ltc2473"; + reg = <0x54>; + }; + }; +