From patchwork Thu Sep 12 08:30:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13801709 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BFF47EE645F for ; Thu, 12 Sep 2024 08:21:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D9D7010E209; Thu, 12 Sep 2024 08:21:20 +0000 (UTC) Received: from szxga05-in.huawei.com (szxga05-in.huawei.com [45.249.212.191]) by gabe.freedesktop.org (Postfix) with ESMTPS id 172D710EB01; Thu, 12 Sep 2024 08:21:19 +0000 (UTC) Received: from mail.maildlp.com (unknown [172.19.163.44]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4X49P81CGjz1j7xM; Thu, 12 Sep 2024 16:20:44 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 74E0714013B; Thu, 12 Sep 2024 16:21:14 +0800 (CST) Received: from huawei.com (10.90.53.73) by kwepemh500013.china.huawei.com (7.202.181.146) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Thu, 12 Sep 2024 16:21:13 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v2 2/5] drm/imx/dcss: Use IRQF_NO_AUTOEN flag in request_irq() Date: Thu, 12 Sep 2024 16:30:17 +0800 Message-ID: <20240912083020.3720233-3-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240912083020.3720233-1-ruanjinjie@huawei.com> References: <20240912083020.3720233-1-ruanjinjie@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.73] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemh500013.china.huawei.com (7.202.181.146) X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 when request IRQ. Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Reviewed-by: Dmitry Baryshkov Signed-off-by: Jinjie Ruan Reviewed-by: Laurentiu Palcu --- v2: - Add Reviewed-by. --- drivers/gpu/drm/imx/dcss/dcss-dtg.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/imx/dcss/dcss-dtg.c b/drivers/gpu/drm/imx/dcss/dcss-dtg.c index 2968f5d5bd41..6bbfd9aa27ac 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-dtg.c +++ b/drivers/gpu/drm/imx/dcss/dcss-dtg.c @@ -134,14 +134,12 @@ static int dcss_dtg_irq_config(struct dcss_dtg *dtg, dtg->base_reg + DCSS_DTG_INT_MASK); ret = request_irq(dtg->ctxld_kick_irq, dcss_dtg_irq_handler, - 0, "dcss_ctxld_kick", dtg); + IRQF_NO_AUTOEN, "dcss_ctxld_kick", dtg); if (ret) { dev_err(dtg->dev, "dtg: irq request failed.\n"); return ret; } - disable_irq(dtg->ctxld_kick_irq); - dtg->ctxld_kick_irq_en = false; return 0;