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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 97E45C10F09 for ; Wed, 6 Mar 2019 02:50:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 669CA20842 for ; Wed, 6 Mar 2019 02:50:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728834AbfCFCub (ORCPT ); Tue, 5 Mar 2019 21:50:31 -0500 Received: from mga18.intel.com ([134.134.136.126]:47833 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726430AbfCFCub (ORCPT ); Tue, 5 Mar 2019 21:50:31 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Mar 2019 18:50:30 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,446,1544515200"; d="scan'208";a="149634712" Received: from hu.sh.intel.com ([10.239.158.51]) by fmsmga004.fm.intel.com with ESMTP; 05 Mar 2019 18:50:27 -0800 From: "Chen, Hu" Cc: hu1.chen@intel.com, bo.he@intel.com, he@vger.kernel.org, Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Hans de Goede , Stephan Gerhold , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3] io: accel: kxcjk1013: restore the range after resume. Date: Wed, 6 Mar 2019 10:32:20 +0800 Message-Id: <20190306023224.23695-1-hu1.chen@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <23ced5ac-b0a0-7d87-76d7-bdec0c3e0e15@redhat.com> References: <23ced5ac-b0a0-7d87-76d7-bdec0c3e0e15@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "he, bo" On some laptops, kxcjk1013 is powered off when system enters S3. We need restore the range regiter during resume. Otherwise, the sensor doesn't work properly after S3. Signed-off-by: he, bo Signed-off-by: Chen, Hu --- v3: Avoid unnecessary mutex_unlock (Hans). v2: Handle return value independently (Jonathan). drivers/iio/accel/kxcjk-1013.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index 7096e577b23f..50f3ff386bea 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -1437,6 +1437,8 @@ static int kxcjk1013_resume(struct device *dev) mutex_lock(&data->mutex); ret = kxcjk1013_set_mode(data, OPERATION); + if (ret == 0) + ret = kxcjk1013_set_range(data, data->range); mutex_unlock(&data->mutex); return ret; -- 2.20.1