From patchwork Fri Sep 6 08:23:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13793648 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B421B155CB0; Fri, 6 Sep 2024 08:14:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.190 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610492; cv=none; b=eqAijIwYniG5WjlMOy2W2A0RAk0tYOfoLMQb+1l2MPdhLSzD4GVe0vQAZbEFWeP8txsLRZMxVC7nXtSG8y0V8inYbteU0p5Bm8zJ9Afl18e8l4rFcrGLARlZO3PVR4OI6nb79ZMEhoxSa5joHCLYUwXpdQ7LybSmxsJMNZGOiBY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610492; c=relaxed/simple; bh=7xqe5Gr7gKNhtbOi4IUUabnUAJrk+xYWSpSgfXz4Hy4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=d9groklHKtSpaBDd1l/ZEQSFOMiCmgp/rcu4GiKdjTR6e4PCobRujQcY0XhaWYfS5fzHFva78Jh1Cbd73Q8O3wsAi/h+ad6OZ2REUUTpBpiByynOGi1cdjB3kIjALyxzfS1hbU03lkEZnfBfEU8vhG7vYqt/KRVQd725ZwtuywA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.190 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.17]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4X0TRK2wz5z20nb0; Fri, 6 Sep 2024 16:09:49 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 89B471A0188; Fri, 6 Sep 2024 16:14:48 +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; Fri, 6 Sep 2024 16:14:47 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH 1/5] drm/atomic: Use IRQF_NO_AUTOEN flag in request_irq() Date: Fri, 6 Sep 2024 16:23:21 +0800 Message-ID: <20240906082325.2677621-2-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240906082325.2677621-1-ruanjinjie@huawei.com> References: <20240906082325.2677621-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemh500013.china.huawei.com (7.202.181.146) 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") Signed-off-by: Jinjie Ruan --- drivers/gpu/drm/imx/dcss/dcss-crtc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/imx/dcss/dcss-crtc.c b/drivers/gpu/drm/imx/dcss/dcss-crtc.c index 31267c00782f..af91e45b5d13 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-crtc.c +++ b/drivers/gpu/drm/imx/dcss/dcss-crtc.c @@ -206,15 +206,13 @@ int dcss_crtc_init(struct dcss_crtc *crtc, struct drm_device *drm) if (crtc->irq < 0) return crtc->irq; - ret = request_irq(crtc->irq, dcss_crtc_irq_handler, - 0, "dcss_drm", crtc); + ret = request_irq(crtc->irq, dcss_crtc_irq_handler, IRQF_NO_AUTOEN, + "dcss_drm", crtc); if (ret) { dev_err(dcss->dev, "irq request failed with %d.\n", ret); return ret; } - disable_irq(crtc->irq); - return 0; } From patchwork Fri Sep 6 08:23:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13793650 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4171715624D; Fri, 6 Sep 2024 08:14:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610493; cv=none; b=kwtHzio1rotqFyMpNTp+Ouf6WqnOYJA+miVvlPIJt6+32r9g7HShXht6eb9yJJ1TodDL1K1XGkLyxq8h8sToANxDYlz/8hg3tgYqKi+lOmh+ABU0rrK21UnlYfgKO71fPwHv3vojDAQdaIubMTRgLAjA1EpSEp3W19IuvSEQ1+8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610493; c=relaxed/simple; bh=Z1K9tXjpXvNbT+fFOcDSnesvrUOxG8cWO1TM+Jaf9ag=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KL1jm/S+gyEvxiyjku58Y0kcMZxS9CvcsUhA1NtKna/tm8jEHzGwLloMN1rrEJGumKzWNl4Z92P1vScF/v3EH+TLJEPBZ823df9YldkXiUPdvCSbRswnF7xJaTpsjCoW334DgFT5sQHXbY7sMYUjC0kAnxyAYtTjO8cL/YPzJDI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.48]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4X0TWx20xnzyQwr; Fri, 6 Sep 2024 16:13:49 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 6E321180064; Fri, 6 Sep 2024 16:14:49 +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; Fri, 6 Sep 2024 16:14:48 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH 2/5] drm/imx/dcss: Use IRQF_NO_AUTOEN flag in request_irq() Date: Fri, 6 Sep 2024 16:23:22 +0800 Message-ID: <20240906082325.2677621-3-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240906082325.2677621-1-ruanjinjie@huawei.com> References: <20240906082325.2677621-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemh500013.china.huawei.com (7.202.181.146) 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") Signed-off-by: Jinjie Ruan Reviewed-by: Dmitry Baryshkov --- 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; From patchwork Fri Sep 6 08:23:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13793651 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8771515699D; Fri, 6 Sep 2024 08:14:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.255 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610494; cv=none; b=Bna8z+1DPcobGF1pHgzOA1dngWoKNJX9rAr6ecXaWImm5N+jXX1ejzj1Y1AcQX4HBIxP7hoF/O7lazjraUYvNMvzxE5YtPo1EMTDi+RJnIIJOAj82KugORR2dfQaKaG5ydfChaYWCAymLkgNn8vqqZXic9WYmaU4mDEtf/Y948o= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610494; c=relaxed/simple; bh=PXWosC2Axl+vhaMTuhbkNDReOIWXiFM/mvzIffw1vBg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=uu45EQI+60Ij+8kqmm1w/RZQWC8v7IbEkvB9C0vdhCiUbfRhkrTHa2u1EGa3K/+0ryYYcu/VUU4w/FPjTzL89yfXhb4DQxMvEGDTobVdzUQ163VtkD3wZbU1DoECob3gAG75Cs3prpqgRugsxeAPqdbIS+M+A7HM5dHfz3zL1Jg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.255 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.162.254]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4X0TWy3dGXz1P9Gk; Fri, 6 Sep 2024 16:13:50 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 5EFB31800FE; Fri, 6 Sep 2024 16:14:50 +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; Fri, 6 Sep 2024 16:14:49 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH 3/5] drm/imx/ipuv3: Use IRQF_NO_AUTOEN flag in request_irq() Date: Fri, 6 Sep 2024 16:23:23 +0800 Message-ID: <20240906082325.2677621-4-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240906082325.2677621-1-ruanjinjie@huawei.com> References: <20240906082325.2677621-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemh500013.china.huawei.com (7.202.181.146) 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: 47b1be5c0f4e ("staging: imx/drm: request irq only after adding the crtc") Signed-off-by: Jinjie Ruan Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c index ef29c9a61a46..99db53e167bd 100644 --- a/drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c +++ b/drivers/gpu/drm/imx/ipuv3/ipuv3-crtc.c @@ -410,14 +410,12 @@ static int ipu_drm_bind(struct device *dev, struct device *master, void *data) } ipu_crtc->irq = ipu_plane_irq(ipu_crtc->plane[0]); - ret = devm_request_irq(ipu_crtc->dev, ipu_crtc->irq, ipu_irq_handler, 0, - "imx_drm", ipu_crtc); + ret = devm_request_irq(ipu_crtc->dev, ipu_crtc->irq, ipu_irq_handler, + IRQF_NO_AUTOEN, "imx_drm", ipu_crtc); if (ret < 0) { dev_err(ipu_crtc->dev, "irq request failed with %d.\n", ret); return ret; } - /* Only enable IRQ when we actually need it to trigger work. */ - disable_irq(ipu_crtc->irq); return 0; } From patchwork Fri Sep 6 08:23:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13793652 Received: from szxga05-in.huawei.com (szxga05-in.huawei.com [45.249.212.191]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 880083C463; Fri, 6 Sep 2024 08:14:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.191 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610495; cv=none; b=SVo6F8BLkMI7nQ4ZZl2WNTZtnmbgbUfBwQ85GaXTTsmVPM9XkfDHKibNsLavLNoCOrw63Dt9UGRWHnMhDrkncaWZBsR3eGPg4jd5Zjw9JIN54HMZANzu0vHITJ5fDF/eIPcyKuJjzCh71W4+i7NjcQAnYaF7UMsQMO7s/H3qBwE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610495; c=relaxed/simple; bh=uhGeFDmPYMSKAWPD/jrWWFXKl1eEXDz5JCdoInuqcHU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=cWZA8TRxXF+1vTzH2YI7/2g59cXMuzgQXDRAiGBRZahtV86U7ldiBSxPk7Ryyb+UqtTV6uUY1p2svTluSpQhwIxQC3KFWMJigNO6SLlxRO/h7TlMbk0kRNahV9B2t6FB8/5LBXHR7LMuLv/djdfFZ6FFdGNX+cVazS5s8uBeTho= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.191 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.162.112]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4X0TXh5DByz1j8D4; Fri, 6 Sep 2024 16:14:28 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 4E0BB1400DB; Fri, 6 Sep 2024 16:14:51 +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; Fri, 6 Sep 2024 16:14:50 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH 4/5] drm/tegra: dpaux: Use IRQF_NO_AUTOEN flag in request_irq() Date: Fri, 6 Sep 2024 16:23:24 +0800 Message-ID: <20240906082325.2677621-5-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240906082325.2677621-1-ruanjinjie@huawei.com> References: <20240906082325.2677621-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemh500013.china.huawei.com (7.202.181.146) 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: 9e532b3ad9a7 ("drm/tegra: dpaux: Disable interrupt when detached") Signed-off-by: Jinjie Ruan --- drivers/gpu/drm/tegra/dpaux.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c index ae12d001a04b..9646dba950e0 100644 --- a/drivers/gpu/drm/tegra/dpaux.c +++ b/drivers/gpu/drm/tegra/dpaux.c @@ -517,7 +517,7 @@ static int tegra_dpaux_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); pm_runtime_get_sync(&pdev->dev); - err = devm_request_irq(dpaux->dev, dpaux->irq, tegra_dpaux_irq, 0, + err = devm_request_irq(dpaux->dev, dpaux->irq, tegra_dpaux_irq, IRQF_NO_AUTOEN, dev_name(dpaux->dev), dpaux); if (err < 0) { dev_err(dpaux->dev, "failed to request IRQ#%u: %d\n", @@ -525,8 +525,6 @@ static int tegra_dpaux_probe(struct platform_device *pdev) goto err_pm_disable; } - disable_irq(dpaux->irq); - dpaux->aux.transfer = tegra_dpaux_transfer; dpaux->aux.dev = &pdev->dev; From patchwork Fri Sep 6 08:23:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 13793653 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5BB58156991; Fri, 6 Sep 2024 08:14:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.188 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610497; cv=none; b=cHepRQ199BQ89koGqZj1TEFF6E6Ro4RL9HsFShiCigPB0kvTjOw1dB5oytEWtKwBpyrntR7KRSwdUazPskS6Tn8sCThrW8GG2ukGoW1+HiK5Z8Asv0uoO1XRK8NlWrIfHavnGMoUoWfDSSJ9D6QRKn8MK54CqeWOuItXdKuGynQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725610497; c=relaxed/simple; bh=3kRnQ3cu+eoPXrpvaTDdI+/4qAWY6A0YVRExLzCDP3A=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FDASbqceezvDs5m7Hzrg/99iFQAjXuS9GmDk3wbZ/PmRftPSFF3b0pgFg7LO38pRtMdu7O/sH4ROgXk1G/AJA27I2ezgaHmausIdN1A5U18ZHCbXcmqQ47y7eZgvgqHNPYoRMp10W1DdVCNDrOM56AQL0XYZOFZ2XkH4vMEqkBc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.48]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4X0TVh0lVxzfbjq; Fri, 6 Sep 2024 16:12:44 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 39E8D180064; Fri, 6 Sep 2024 16:14:52 +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; Fri, 6 Sep 2024 16:14:51 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH 5/5] drm/msm/adreno: Use IRQF_NO_AUTOEN flag in request_irq() Date: Fri, 6 Sep 2024 16:23:25 +0800 Message-ID: <20240906082325.2677621-6-ruanjinjie@huawei.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240906082325.2677621-1-ruanjinjie@huawei.com> References: <20240906082325.2677621-1-ruanjinjie@huawei.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemh500013.china.huawei.com (7.202.181.146) 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: 4b565ca5a2cb ("drm/msm: Add A6XX device support") Signed-off-by: Jinjie Ruan Reviewed-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index cb538a262d1c..db36c81d0f12 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -1505,15 +1505,13 @@ static int a6xx_gmu_get_irq(struct a6xx_gmu *gmu, struct platform_device *pdev, irq = platform_get_irq_byname(pdev, name); - ret = request_irq(irq, handler, IRQF_TRIGGER_HIGH, name, gmu); + ret = request_irq(irq, handler, IRQF_TRIGGER_HIGH | IRQF_NO_AUTOEN, name, gmu); if (ret) { DRM_DEV_ERROR(&pdev->dev, "Unable to get interrupt %s %d\n", name, ret); return ret; } - disable_irq(irq); - return irq; }