From patchwork Mon Mar 4 07:05:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Chen, Hu1" X-Patchwork-Id: 10837403 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 611EA14DE for ; Mon, 4 Mar 2019 07:24:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 43A3D28505 for ; Mon, 4 Mar 2019 07:24:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 35DD9289FF; Mon, 4 Mar 2019 07:24:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A6DC028505 for ; Mon, 4 Mar 2019 07:24:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725938AbfCDHYC (ORCPT ); Mon, 4 Mar 2019 02:24:02 -0500 Received: from mga04.intel.com ([192.55.52.120]:54407 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725974AbfCDHYC (ORCPT ); Mon, 4 Mar 2019 02:24:02 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Mar 2019 23:24:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,439,1544515200"; d="scan'208";a="119387287" Received: from hu.sh.intel.com ([10.239.158.51]) by orsmga007.jf.intel.com with ESMTP; 03 Mar 2019 23:23:58 -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 v2] io: accel: kxcjk1013: restore the range after resume. Date: Mon, 4 Mar 2019 15:05:55 +0800 Message-Id: <20190304070556.24681-1-hu1.chen@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190303161728.3571869e@archlinux> References: <20190303161728.3571869e@archlinux> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 --- Changes in v2: - Handle return value independently in resume callback. drivers/iio/accel/kxcjk-1013.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index 7096e577b23f..17837e26bcf2 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -1437,6 +1437,11 @@ static int kxcjk1013_resume(struct device *dev) mutex_lock(&data->mutex); ret = kxcjk1013_set_mode(data, OPERATION); + if (ret < 0) { + mutex_unlock(&data->mutex); + return ret; + } + ret = kxcjk1013_set_range(data, data->range); mutex_unlock(&data->mutex); return ret;