From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) (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 A2F78439349 for ; Mon, 12 Oct 2026 11:42:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.13 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791805364; cv=none; b=YE1T8554dGMcJ6ej1EmusroVrOiDVnt+pibis5RHSSsSpIIDEuwyBqROKLgGV55IXIn8GmKCa2sd0UnDPzhS/9VjVqSxU6AhrkK+wq4E2lQRoZdZOrdTopCxLqTEddtR63tYgwtfvjRxfcC3lA7hvBy8liLsJg3n9023jAAvm1U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791805364; c=relaxed/simple; bh=Ho7pJobPgVkM3xYGBaeTHcr5XEVneZDpjtW0AZJLv4I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kr4XtR1Yl7rAEDmkmiz2t6pda6vdIJvct4nJUYtG67oqpX7MXcrCrYwcQsVrdFKKAsiIIoYva9bVfnf8whURlO3R/ZrZT1zdQVERlTPL7ti20hrk8Us6Zu5/IjX8a4fxI6fKJiktwRMuB+FATXL7/hYH+0J4HEkEFuOogGelW3w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=UH330OKl; arc=none smtp.client-ip=198.175.65.13 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="UH330OKl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1791805363; x=1823341363; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Ho7pJobPgVkM3xYGBaeTHcr5XEVneZDpjtW0AZJLv4I=; b=UH330OKlAwcoyEg1vKBrNL32BgYRX/F776VBWYgROzPbIxL5N2osL1l1 NcSGBkR3s6+9rbIUmecrXRgRBWqjvQhO4Y24/sbPlAWPro46YXrNqOY00 HVpwqFbaYM0Y/+0pWJOJZY3XEVe7WvrRe/GUuX5tMlE3YcalC8ENO4TMM O8oZPq+tlpO0W4Ox6jHKpC0Wbg5dTh9zz9Hp740khaIh+Ae8gHwkavvxX Oji4lteFyG/APg784/WXjNPkyiDHIepsnJmnNbZp6SZhzQfhSXICpsBky DLHUEuksEcaUwwagux+j5fyz2Jl+QcHmqZtrM4OFSK639G4JrO1EERFA5 Q==; X-CSE-ConnectionGUID: +/o6D131RpyFkr1hCb648w== X-CSE-MsgGUID: tYc6Des5Qym3OqzXGg5k0g== X-IronPort-AV: E=McAfee;i="6800,10657,11932"; a="394320" X-IronPort-AV: E=Sophos;i="6.27,153,1787036400"; d="scan'208";a="394320" Received: from fmviesa003.fm.intel.com ([10.60.135.143]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2026 04:42:40 -0700 X-CSE-ConnectionGUID: DQvmN4ZuQDeA8bypmljl3g== X-CSE-MsgGUID: Rw3p6UBMRaCEk5QYk31hmQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,153,1787036400"; d="scan'208";a="978027" Received: from alekseim-mobl.ger.corp.intel.com (HELO kekkonen.fi.intel.com) ([10.245.244.165]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Oct 2026 04:42:36 -0700 Received: from punajuuri.localdomain (unknown [192.168.240.130]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 3B522121BA5; Mon, 12 Oct 2026 14:42:40 +0300 (EEST) Received: from sailus by punajuuri.localdomain with local (Exim 4.98.2) (envelope-from ) id 1xGENu-0000000GeyK-2JE6; Mon, 12 Oct 2026 14:40:02 +0300 Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo From: Sakari Ailus To: linux-media@vger.kernel.org Cc: "Yan, Dongcheng" , Mehdi Djait , "Yu, Ong Hock" , "Ng, Khai Wen" , Antti Laakso , "Bajpai, Manik" , Divyamani Tripathi , "Sapre, Sarang" , "Yao, Hao" Subject: [PATCH v2 3/5] media: ipu6: Prevent starting streaming if ISYS needs reset Date: Mon, 12 Oct 2026 14:40:00 +0300 Message-ID: <20261012114002.3970409-4-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261012114002.3970409-1-sakari.ailus@linux.intel.com> References: <20261012114002.3970409-1-sakari.ailus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Fail starting streaming whenever ISYS needs to be reset to resume normal operation. Signed-off-by: Sakari Ailus --- drivers/media/pci/intel/ipu6/ipu6-isys-queue.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c index 6596833e95d4..d637b428b0f5 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c +++ b/drivers/media/pci/intel/ipu6/ipu6-isys-queue.c @@ -481,6 +481,13 @@ static int start_streaming(struct vb2_queue *q, unsigned int count) av->vdev.name, ipu6_isys_get_frame_width(av), ipu6_isys_get_frame_height(av), pfmt->css_pixelformat); + scoped_guard(mutex, &av->isys->mutex) { + if (av->isys->need_reset) { + ret = -EBUSY; + goto out_return_buffers; + } + } + remote_pad = media_pad_remote_pad_unique(&av->pad); if (IS_ERR(remote_pad)) { dev_dbg(dev, "failed to get remote pad\n"); -- 2.47.3