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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F689C28B2C for ; Mon, 15 Aug 2022 14:57:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233700AbiHOO5k (ORCPT ); Mon, 15 Aug 2022 10:57:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240377AbiHOO5Y (ORCPT ); Mon, 15 Aug 2022 10:57:24 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C510B1C114; Mon, 15 Aug 2022 07:57:23 -0700 (PDT) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 27FEsflu014721; Mon, 15 Aug 2022 14:57:10 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=8ZTg0G+Wa4/8+mqlKuuc4tufXoqRTRsIKVo19S0zDC0=; b=P3+NnXyCWwQT1/K4lvaBzOtLYCFi+n+K7f0STa4RjjMc94GQgTHWaA8OCUdcFxvT18Gu o5cdIaYGwREx+OUQuHe/WLDrgcZfdBUsi2TyHT4suyta02Boq3XVuX4frYupeuYzPAOp f8xbTTNc8266SiqFpaVSeImTn9gJSqNhui9gfTvH4m71AedrhXzluH50Llvy1ehj+aIX unKDUI5jHYfFGqW7YMrdL1T7TNYxGnVKdZE8uPYGuVnYqct5gwgiHMlN4HRZOK5Dkezc 2lYquK+gAipaYuwXV9YJ1B1PlI0KcA3sytLETHj16snFmhIniOtPRVvNVOfki0rr74vL 7A== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3hyratr18c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Aug 2022 14:57:09 +0000 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 27FEsc9T014618; Mon, 15 Aug 2022 14:57:09 GMT Received: from ppma01wdc.us.ibm.com (fd.55.37a9.ip4.static.sl-reverse.com [169.55.85.253]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3hyratr180-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Aug 2022 14:57:09 +0000 Received: from pps.filterd (ppma01wdc.us.ibm.com [127.0.0.1]) by ppma01wdc.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 27FEoHIB018077; Mon, 15 Aug 2022 14:57:08 GMT Received: from b03cxnp08027.gho.boulder.ibm.com (b03cxnp08027.gho.boulder.ibm.com [9.17.130.19]) by ppma01wdc.us.ibm.com with ESMTP id 3hx3k94jan-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Aug 2022 14:57:08 +0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 27FEv7o923593406 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 15 Aug 2022 14:57:07 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4AD0113604F; Mon, 15 Aug 2022 14:57:07 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 683CA136051; Mon, 15 Aug 2022 14:57:06 +0000 (GMT) Received: from slate16.aus.stglabs.ibm.com (unknown [9.77.146.160]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 15 Aug 2022 14:57:06 +0000 (GMT) From: Eddie James To: jic23@kernel.org Cc: lars@metafoo.de, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, eajames@linux.ibm.com, andy.shevchenko@gmail.com, joel@jms.id.au Subject: [PATCH v5 0/2] iio: pressure: dps310: Reset chip if MEAS_CFG is corrupt Date: Mon, 15 Aug 2022 09:57:03 -0500 Message-Id: <20220815145705.203017-1-eajames@linux.ibm.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 63zzjKSfGn8_H0hPmYbanUxRUB8zKibq X-Proofpoint-GUID: TLXgZYmcAp48EC3iOf81oHLjmYrDO9dm X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-15_08,2022-08-15_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 mlxlogscore=999 clxscore=1015 malwarescore=0 spamscore=0 impostorscore=0 bulkscore=0 mlxscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2207270000 definitions=main-2208150056 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Corruption of the MEAS_CFG register has been observed soon after system boot. In order to recover this scenario, check MEAS_CFG if measurement isn't ready, and if it's incorrect, reset the DPS310 and execute the startup procedure. Include a patch to move the startup procedure into a function. Changes since v4: - Just check for rc rather than rc < 0 in some cases - Split declaration and init of rc Changes since v3: - Don't check regmap* return codes for < 0 - Fix comment spelling Changes since v2: - Add some comments - Fix the clunky control flow Changes since v1: - Separate into two patches - Rename 'dps310_verify_meas_cfg' to 'dps310_check_reset_meas_cfg' Eddie James (2): iio: pressure: dps310: Refactor startup procedure iio: pressure: dps310: Reset chip if MEAS_CFG is corrupt drivers/iio/pressure/dps310.c | 277 +++++++++++++++++++++------------- 1 file changed, 173 insertions(+), 104 deletions(-) -- 2.31.1