From patchwork Thu Jan 7 22:39:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Song Bao Hua (Barry Song)" X-Patchwork-Id: 12005215 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 43B43C43381 for ; Thu, 7 Jan 2021 22:46:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 20AF3235FA for ; Thu, 7 Jan 2021 22:46:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729047AbhAGWpr (ORCPT ); Thu, 7 Jan 2021 17:45:47 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:10037 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728524AbhAGWpr (ORCPT ); Thu, 7 Jan 2021 17:45:47 -0500 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4DBh9j479lzj4YV; Fri, 8 Jan 2021 06:44:09 +0800 (CST) Received: from SWX921481.china.huawei.com (10.126.201.115) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.498.0; Fri, 8 Jan 2021 06:44:56 +0800 From: Barry Song To: , , , , , CC: , Barry Song Subject: [PATCH v3 09/12] Input: wm831x-ts - request_irq by IRQF_NO_AUTOEN and remove disable_irq Date: Fri, 8 Jan 2021 11:39:23 +1300 Message-ID: <20210107223926.35284-10-song.bao.hua@hisilicon.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20210107223926.35284-1-song.bao.hua@hisilicon.com> References: <20210107223926.35284-1-song.bao.hua@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.126.201.115] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org disable_irq() after request_irq() still has a time gap in which interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will disable IRQ auto-enable because of requesting. Signed-off-by: Barry Song --- drivers/input/touchscreen/wm831x-ts.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c index bb1699e0d3c7..319f57fb9af5 100644 --- a/drivers/input/touchscreen/wm831x-ts.c +++ b/drivers/input/touchscreen/wm831x-ts.c @@ -317,14 +317,13 @@ static int wm831x_ts_probe(struct platform_device *pdev) error = request_threaded_irq(wm831x_ts->data_irq, NULL, wm831x_ts_data_irq, - irqf | IRQF_ONESHOT, + irqf | IRQF_ONESHOT | IRQF_NO_AUTOEN, "Touchscreen data", wm831x_ts); if (error) { dev_err(&pdev->dev, "Failed to request data IRQ %d: %d\n", wm831x_ts->data_irq, error); goto err_alloc; } - disable_irq(wm831x_ts->data_irq); if (pdata && pdata->pd_irqf) irqf = pdata->pd_irqf;