From patchwork Thu Sep 12 08:30:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 828287 Received: from szxga07-in.huawei.com (szxga07-in.huawei.com [45.249.212.35]) (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 18F7018FDB3; Thu, 12 Sep 2024 08:21:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.35 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726129279; cv=none; b=ZpvriasUxdr7trcOmP9yF/hVQ+gExf862xdZCzRvRwc0rnuVs1abiIuiF0WAlOT82djppUU9jElBiAYdAYizx8e/9ssjXj04KJHKpIOv3EFVcnla1oP4RoPmkOk3ETNS8t1F1xP7OQxe/iE959sSgIs0iPmZOr/DxMZTRnahgvo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726129279; c=relaxed/simple; bh=xNCzHx9kLOn2cf42Gr1sqYco4c7I6mM7jgbLleCjPlw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=GnrqhFGpavRcgUfy1C8Yz/1+VM052tKZe/2Bj9rVEL8lJGI1Hy3fH+ulM0yQq2UWxSi0lPO39K8US6TGPwvhy4892/uivxovPONnMCByK9x5Q+rFXDOERUK75MHWw0kMiuG7FyS9qe2WsGo6YruF0fFv9RpL4VG1PBYIJdruNKo= 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=45.249.212.35 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 szxga07-in.huawei.com (SkyGuard) with ESMTP id 4X49P63kM9z1SBCF; Thu, 12 Sep 2024 16:20:42 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 929E31400D4; Thu, 12 Sep 2024 16:21:13 +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 16:21:12 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v2 1/5] drm/imx: Use IRQF_NO_AUTOEN flag in request_irq() Date: Thu, 12 Sep 2024 16:30:16 +0800 Message-ID: <20240912083020.3720233-2-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> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) 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 --- v2: - Update the commit subject. --- 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 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: 827896 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 E5DD518FDC3; Thu, 12 Sep 2024 08:21:16 +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=1726129278; cv=none; b=FVsaS3k7ncXUv2QH6pFwX2PJY+8emyvN1PQAQRTkK5UPe/Luzi58LuWONSAE4yQnuBof0UVCgjIxY5/BZc3TeW0x3CEMdKw3GGria/xu1JZE/8wVoUxpDGJdRAqiQLRzgfy8WfMc5CfFoNnuXmBklfMNaFmLsGsWRO4PR/hUbo8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726129278; c=relaxed/simple; bh=/cBOHsC+g7zH5Fsm5ZEUXBpH9NT+5A8M/SOGvw1kQlw=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=HSU5PC1W90RcLV1sveGsNX3Ss7lhSPKChK14z/1ynsUMrm7eJwyw7cQ570w9Rg3q+t1OfH2fwIe8/Tq1MqIGSVckZS9sksju73jB0pzeB7MCg8Kxr3ZgFOzS8XEZwZQYK3mhuZggFHKLfzwFpucTJPMz//Pu/d6IjSnNNVYiYBg= 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 [172.19.163.44]) 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> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) 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") Reviewed-by: Dmitry Baryshkov Signed-off-by: Jinjie Ruan --- 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; From patchwork Thu Sep 12 08:30:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 827895 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 2613318F2FB; Thu, 12 Sep 2024 08:21:17 +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=1726129279; cv=none; b=OhM+7IQbzJmmczfuRDV/vfp8ZYNRf9kLIV/4GAkU4vOcKKN4Fv/vZ9d5HxJJ3kRy7elIJVZ4vjOSeYdJLvfOCA3fMayVPrG3gVYkR3NGKNBpY0UwGGde7TIfR+6k2XAjIwn7r9un+Ad7hXpldWe1gPWljxcNAzvUHY8nWTTgax0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726129279; c=relaxed/simple; bh=cQzTYxmfx2Nw8qaZphnSpX6S5sepXt4ZTkEKu6TE3Jg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=QSRhFtiED4HOsx+dV1kqDcXA/AP1cflTmq+ltPZSTHs5b1kvimij88LBag+Lg4Dudy9zHDJYyvZr2OTkDKGs23U4aCCxOOI7UPPEty7vAtiaT4FCBDPB2PMKooKVGh3xe8uxgvuJCSVPaCuxSfiN2vN9+W68V/doO4tmMGQlhX0= 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 [172.19.163.48]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4X49NR4G6zz16PZH; Thu, 12 Sep 2024 16:20:07 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 596311800A0; Thu, 12 Sep 2024 16:21:15 +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 16:21:14 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v2 3/5] drm/imx/ipuv3: Use IRQF_NO_AUTOEN flag in request_irq() Date: Thu, 12 Sep 2024 16:30:18 +0800 Message-ID: <20240912083020.3720233-4-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> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) 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") Reviewed-by: Dmitry Baryshkov Signed-off-by: Jinjie Ruan --- v2: - Add Reviewed-by. --- 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 Thu Sep 12 08:30:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 827894 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 F0B1F191489; Thu, 12 Sep 2024 08:21:24 +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=1726129286; cv=none; b=Phr5LIkhHbL0Rv/b7ZfOt7duEJoel/S4ITVScPkw4vTvehkAvSccXuIHqrMauQv4nbIk9agH/LmizJMdIyVndyNSitF444Rwrc1VTCyDY3NvK+Z7VI01njqiHMBtGZv8QZcrlhvb6FFjbR5m8P3tvxKWWG3saQ5ZRtrcJ1BAFeA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726129286; c=relaxed/simple; bh=uhGeFDmPYMSKAWPD/jrWWFXKl1eEXDz5JCdoInuqcHU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WCdedDhnpu3we5ExLNVVEa0nU4ZUXfa9qxTtERVIjbPtyYGWGOv/HR2DmI89urzoX6E2lE/F3eJouvoZcVYKSgmII+aplj2ZQHRtTmfQMw5Zq10DhZxBqjAsdcJKHuKy/Ll3Dl5mBjdBKDwIguIWxUmTve9aMPxnbU7C8/t/yCM= 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 [172.19.163.252]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4X49Ns42lGzyRmm; Thu, 12 Sep 2024 16:20:29 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 41ACA1800D5; Thu, 12 Sep 2024 16:21:16 +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 16:21:15 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v2 4/5] drm/tegra: dpaux: Use IRQF_NO_AUTOEN flag in request_irq() Date: Thu, 12 Sep 2024 16:30:19 +0800 Message-ID: <20240912083020.3720233-5-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> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) 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 Thu Sep 12 08:30:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jinjie Ruan X-Patchwork-Id: 828286 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 5550019258D; Thu, 12 Sep 2024 08:21:19 +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=1726129282; cv=none; b=Ky0sbzuM+zlQMFUJAv1+pCOt5j3S2yw5CeaPlhNvud7l7rFqHfcvdWqcSte250ZZwy46ykwIL9nRPFL5UKuzBfDNjB4JMTaN/OCRITFv/JLDooxRHmGAtwc6XYJ6emW5qFg+HTfLfj3X2t2tka3ooPKG+hO1U+pctvrX7Fv4vak= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726129282; c=relaxed/simple; bh=Urzi09HJJ2nfdtIBscNyIejU6jP9nXSjLRTUdoP5NCo=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=GCth6lJzA/bBnrU1LDxBWIlxboJ6PkkAsS3jkgInmD/FYPFwwn4V1eDy+V2GqUhqiM9c3kKPEmu/mlbTPRIh2M0ms5RGHRN6BYOZfXaW5Wz3SYb/k/VZHRVyr0HE6GP4iD670cEC9d8shNy9v9p1JH9mqFWqXhbDozZmPvaohxA= 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 [172.19.88.214]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4X49PB4hhBz2CpBB; Thu, 12 Sep 2024 16:20:46 +0800 (CST) Received: from kwepemh500013.china.huawei.com (unknown [7.202.181.146]) by mail.maildlp.com (Postfix) with ESMTPS id 25D881A016C; Thu, 12 Sep 2024 16:21:17 +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 16:21:16 +0800 From: Jinjie Ruan To: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , CC: Subject: [PATCH v2 5/5] drm/msm/adreno: Use IRQF_NO_AUTOEN flag in request_irq() Date: Thu, 12 Sep 2024 16:30:20 +0800 Message-ID: <20240912083020.3720233-6-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> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) 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") Reviewed-by: Dmitry Baryshkov Signed-off-by: Jinjie Ruan --- v2: - Add Reviewed-by. --- 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; }