From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 10D5322FDE5; Thu, 12 Dec 2024 16:51:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734022264; cv=none; b=VjiYmSmE2dB1DyQKhplBlyZgViUVDTlXRkmq24eMCfI5We5loE0FH8InskLU0jxNQ47RHpoZbO0xhtfLUvk5MKftIOmH0xtalHsTSlr0YHbCCM3TU2Cf7VPll1ja+tfu6gM4piE0z/t8WQqxnIrhdoPd/qNVVK+z0g1nejlTQbk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734022264; c=relaxed/simple; bh=g3bjwOoJc3PYS+g28FvvSilPcWBNPyFWWGD1WB4i84Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=m56qgNlYhh8zfDQdTeZx5Yu8/ilz9IxMU65GIKLbdBNj3Svs5RolXT3Z8Sw6q9I1LKhOpbjIPMa/GOPsMxKoSe7dJAC0evxSx0sDbEQLEMtZI9HsHX6TEWrUSxl4mflZckJs2p0JlpJuMbfgAfhzLhzuzbb71i25XXS1T6/fXHw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=L1r6PV5V; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="L1r6PV5V" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2148AC4CED0; Thu, 12 Dec 2024 16:51:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734022263; bh=g3bjwOoJc3PYS+g28FvvSilPcWBNPyFWWGD1WB4i84Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L1r6PV5VVkZGhR3YTfHtvk9p6Qc3BLrEinaSeUJFoaFA1IuUsIfqndpQxECbQ8lwq UD0q965MwWhR7XWrgPKewiORgnSgWnn63GyfsTexlsh1jjIx4pCwEDUUi/JtxoBSGv nsxMbBsJLTnnQ4LXOT06ckebKHubBMNEknWiMckk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jinjie Ruan , Laurentiu Palcu , Dmitry Baryshkov , Sasha Levin Subject: [PATCH 5.15 152/565] drm/imx/dcss: Use IRQF_NO_AUTOEN flag in request_irq() Date: Thu, 12 Dec 2024 15:55:47 +0100 Message-ID: <20241212144317.491197237@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241212144311.432886635@linuxfoundation.org> References: <20241212144311.432886635@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jinjie Ruan [ Upstream commit 1af01e14db7e0b45ae502d822776a58c86688763 ] 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: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20240912083020.3720233-2-ruanjinjie@huawei.com [DB: fixed the subject] Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin --- 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 31267c00782fc..af91e45b5d13b 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; } -- 2.43.0