From patchwork Tue Sep 13 07:34:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Nuno Sa X-Patchwork-Id: 12974504 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97BEBC6FA82 for ; Tue, 13 Sep 2022 07:33:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230321AbiIMHda (ORCPT ); Tue, 13 Sep 2022 03:33:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230044AbiIMHda (ORCPT ); Tue, 13 Sep 2022 03:33:30 -0400 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C66BF58B48 for ; Tue, 13 Sep 2022 00:33:29 -0700 (PDT) Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 28D6L46R025593; Tue, 13 Sep 2022 03:33:17 -0400 Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 3jgqg5tyjp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 13 Sep 2022 03:33:17 -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 28D7XGBd064893 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 13 Sep 2022 03:33:16 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Tue, 13 Sep 2022 03:33:15 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.986.14 via Frontend Transport; Tue, 13 Sep 2022 03:33:15 -0400 Received: from nsa.ad.analog.com ([10.44.3.57]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 28D7WuNQ002761; Tue, 13 Sep 2022 03:33:03 -0400 From: =?utf-8?q?Nuno_S=C3=A1?= To: CC: Michael Hennerich , Lars-Peter Clausen , Jonathan Cameron , Michael Hennerich Subject: [PATCH 2/2] iio: dac: ad5593r: add check for i2c functionality Date: Tue, 13 Sep 2022 09:34:13 +0200 Message-ID: <20220913073413.140475-3-nuno.sa@analog.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220913073413.140475-1-nuno.sa@analog.com> References: <20220913073413.140475-1-nuno.sa@analog.com> MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: vXOPocFpnx49ulJpcXTaaGzCZ-rKV-uJ X-Proofpoint-ORIG-GUID: vXOPocFpnx49ulJpcXTaaGzCZ-rKV-uJ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.528,FMLib:17.11.122.1 definitions=2022-09-13_02,2022-09-12_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 malwarescore=0 mlxlogscore=999 clxscore=1015 priorityscore=1501 lowpriorityscore=0 adultscore=0 suspectscore=0 impostorscore=0 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2207270000 definitions=main-2209130033 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Make sure that the needed i2c functionality is supported during probe. Signed-off-by: Nuno Sá Signed-off-by: Michael Hennerich --- drivers/iio/dac/ad5593r.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c index 43ee4efb250c..f09433e298db 100644 --- a/drivers/iio/dac/ad5593r.c +++ b/drivers/iio/dac/ad5593r.c @@ -98,6 +98,10 @@ static const struct ad5592r_rw_ops ad5593r_rw_ops = { static int ad5593r_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { + if (!i2c_check_functionality(i2c->adapter, + I2C_FUNC_SMBUS_BYTE | I2C_FUNC_I2C)) + return -EOPNOTSUPP; + return ad5592r_probe(&i2c->dev, id->name, &ad5593r_rw_ops); }