From patchwork Thu Jan 28 22:35:36 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: 12054643 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=-16.7 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 084C8C433E9 for ; Thu, 28 Jan 2021 22:43:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB0FF64DED for ; Thu, 28 Jan 2021 22:43:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231597AbhA1WnM (ORCPT ); Thu, 28 Jan 2021 17:43:12 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:11469 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231518AbhA1Wmq (ORCPT ); Thu, 28 Jan 2021 17:42:46 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4DRb661KWbzjDdF; Fri, 29 Jan 2021 06:40:46 +0800 (CST) Received: from SWX921481.china.huawei.com (10.126.203.74) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.498.0; Fri, 29 Jan 2021 06:41:36 +0800 From: Barry Song To: , , , , , CC: , Barry Song Subject: [PATCH v4 10/12] Input: cyttsp - request_irq by IRQF_NO_AUTOEN and remove disable_irq Date: Fri, 29 Jan 2021 11:35:36 +1300 Message-ID: <20210128223538.20272-11-song.bao.hua@hisilicon.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20210128223538.20272-1-song.bao.hua@hisilicon.com> References: <20210128223538.20272-1-song.bao.hua@hisilicon.com> MIME-Version: 1.0 X-Originating-IP: [10.126.203.74] 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/cyttsp_core.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c index 73c854f35f33..d5c933604168 100644 --- a/drivers/input/touchscreen/cyttsp_core.c +++ b/drivers/input/touchscreen/cyttsp_core.c @@ -652,7 +652,8 @@ struct cyttsp *cyttsp_probe(const struct cyttsp_bus_ops *bus_ops, } error = devm_request_threaded_irq(dev, ts->irq, NULL, cyttsp_irq, - IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT | + IRQF_NO_AUTOEN, "cyttsp", ts); if (error) { dev_err(ts->dev, "failed to request IRQ %d, err: %d\n", @@ -660,8 +661,6 @@ struct cyttsp *cyttsp_probe(const struct cyttsp_bus_ops *bus_ops, return ERR_PTR(error); } - disable_irq(ts->irq); - cyttsp_hard_reset(ts); error = cyttsp_power_on(ts);