From patchwork Wed Apr 24 05:11:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Wang, Jiada" X-Patchwork-Id: 10914079 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 0D19B13B5 for ; Wed, 24 Apr 2019 05:12:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EF82A28A4A for ; Wed, 24 Apr 2019 05:12:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E2CE228A4C; Wed, 24 Apr 2019 05:12:55 +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 909F628A4A for ; Wed, 24 Apr 2019 05:12:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726184AbfDXFMy (ORCPT ); Wed, 24 Apr 2019 01:12:54 -0400 Received: from relay1.mentorg.com ([192.94.38.131]:44915 "EHLO relay1.mentorg.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725919AbfDXFMy (ORCPT ); Wed, 24 Apr 2019 01:12:54 -0400 Received: from svr-orw-mbx-03.mgc.mentorg.com ([147.34.90.203]) by relay1.mentorg.com with esmtps (TLSv1.2:ECDHE-RSA-AES256-SHA384:256) id 1hJADC-00026h-3q from Jiada_Wang@mentor.com ; Tue, 23 Apr 2019 22:12:50 -0700 Received: from jiwang-OptiPlex-980.tokyo.mentorg.com (147.34.91.1) by svr-orw-mbx-03.mgc.mentorg.com (147.34.90.203) with Microsoft SMTP Server (TLS) id 15.0.1320.4; Tue, 23 Apr 2019 22:12:45 -0700 From: Jiada Wang To: , , CC: , , , , , , , , , , , , , , , Subject: [PATCH v4 0/2] thermal: rcar_gen3_thermal: fix IRQ issues Date: Wed, 24 Apr 2019 14:11:43 +0900 Message-ID: <20190424051145.23072-1-jiada_wang@mentor.com> X-Mailer: git-send-email 2.19.2 MIME-Version: 1.0 X-ClientProxiedBy: SVR-ORW-MBX-05.mgc.mentorg.com (147.34.90.205) To svr-orw-mbx-03.mgc.mentorg.com (147.34.90.203) Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP There are issues with interrupt handling in rcar_gen3_thermal driver. Currently IRQ is remain enabled after .remove, later if device is probed, IRQ is requested before .thermal_init, this may cause IRQ function be triggered but not able to clear IRQ status, thus cause system to hang. Since the irq line isn't shared between different devices, so the proper interrupt type flag should be IRQF_ONESHOT. This patch-set fix these interrupt handling retated issues. Tested-by: Niklas Söderlund Reviewed-by: Niklas Söderlund --- v4: remove 'spinlock_t lock' add Fixes tag in ("thermal: rcar_gen3_thermal: fix interrupt type") fix typos in ("thermal: rcar_gen3_thermal: disable interrupt in .remove") v3: fix to use correct code base remove unused "flag" variable in rcar_gen3_thermal_irq v2: use irq type IRQF_ONESHOT instead of IRQF_SHARED disable interrupt in .remove v1: initial version Jiada Wang (2): thermal: rcar_gen3_thermal: fix interrupt type thermal: rcar_gen3_thermal: disable interrupt in .remove drivers/thermal/rcar_gen3_thermal.c | 41 +++++++---------------------- 1 file changed, 9 insertions(+), 32 deletions(-)