From patchwork Thu Feb 4 09:10:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Tachici X-Patchwork-Id: 12066649 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=-11.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 C9890C4332B for ; Thu, 4 Feb 2021 09:11:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 855CF64E34 for ; Thu, 4 Feb 2021 09:11:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234797AbhBDJKi (ORCPT ); Thu, 4 Feb 2021 04:10:38 -0500 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:1066 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235010AbhBDJIr (ORCPT ); Thu, 4 Feb 2021 04:08:47 -0500 Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 11496o5L023295; Thu, 4 Feb 2021 04:08:06 -0500 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com with ESMTP id 36dbud5gw0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 04 Feb 2021 04:08:05 -0500 Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 114984qw013140 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Thu, 4 Feb 2021 04:08:04 -0500 Received: from ASHBCASHYB5.ad.analog.com (10.64.17.133) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Thu, 4 Feb 2021 04:08:03 -0500 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB5.ad.analog.com (10.64.17.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.721.2; Thu, 4 Feb 2021 04:08:03 -0500 Received: from zeus.spd.analog.com (10.66.68.11) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Thu, 4 Feb 2021 04:08:03 -0500 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 114982l3001727; Thu, 4 Feb 2021 04:08:02 -0500 From: To: , , CC: , Subject: [PATCH 0/2] iio: adc: ad7124: allow 16 channels Date: Thu, 4 Feb 2021 11:10:43 +0200 Message-ID: <20210204091045.4175-1-alexandru.tachici@analog.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.737 definitions=2021-02-04_05:2021-02-04,2021-02-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 clxscore=1011 suspectscore=0 malwarescore=0 mlxscore=0 priorityscore=1501 bulkscore=0 mlxlogscore=999 spamscore=0 phishscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2102040057 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org From: Alexandru Tachici AD7124-8 can have up to 16 pseudo-differential channels enabled simultaneously and only 8 configurations. In this scenario we cannot assign one configuration per channel, some channels will have to share configurations like, ODR, gain and filter parameters. Allow the user to specify channels and configurations separately in device-tree and assign, if needed, the same configuration to multiple channels. If two channels share the configuration changing the sampling rate of one will change the sampling rate of the other too. Alexandru Tachici (2): iio: adc: ad7124: allow 16 channels dt-bindings: iio: adc: ad7124: add config nodes .../bindings/iio/adc/adi,ad7124.yaml | 72 +++++-- drivers/iio/adc/ad7124.c | 196 +++++++++++------- 2 files changed, 179 insertions(+), 89 deletions(-)