From patchwork Fri Mar 18 12:18:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 81916 Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from ) id 1nVBZN-00D5wz-28; Fri, 18 Mar 2022 12:19:02 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236157AbiCRMUQ (ORCPT + 1 other); Fri, 18 Mar 2022 08:20:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35234 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236180AbiCRMUO (ORCPT ); Fri, 18 Mar 2022 08:20:14 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82819129246 for ; Fri, 18 Mar 2022 05:18:50 -0700 (PDT) Received: from perceval.ideasonboard.com (unknown [103.251.226.137]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 88AA3EE; Fri, 18 Mar 2022 13:18:46 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1647605928; bh=XP7aULoA2tQrmCCRBmDld8u5TjF7Spl85xESGlZNnZk=; h=From:To:Cc:Subject:Date:From; b=bLIQiKDxdltNKEoQGBLzjP5EQg43t1w7k8WqUKVGZpkiKn6opDztQbzELo03fdN1X Xa+uJeuzJxc0wv018Fe36aOUXSNoKttkGK23GT+hmOii9JesE+VMk7GT1q6pvj+x4n rQIsWh12ZYEN83lKHFJ8tCATqq9xwKTp5ErW3B38= From: Umang Jain To: linux-media@vger.kernel.org Cc: bingbu.cao@intel.com, sakari.ailus@linux.intel.com, libcamera-devel@lists.libcamera.org, Umang Jain Subject: [PATCH 0/2] media: ipu3: Sequence number fix and improvements Date: Fri, 18 Mar 2022 17:48:24 +0530 Message-Id: <20220318121826.877187-1-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=BAYES_00=-1.9,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no The patch (1/2) fixes the issue where sequence number of buffers keep on incrementing during consecutive stream on/off cycles. The sequence number should be reset to 0, on every stream (re)start. Patch 2/2 is a just a drive-by patch while exploring ipu3-imgu driver codebase. Umang Jain (2): media: staging/intel-ipu3: Reset imgu_video_device sequence media: staging/intel-ipu3: Cleanup dummy buffers via helper drivers/staging/media/ipu3/ipu3-v4l2.c | 1 + drivers/staging/media/ipu3/ipu3.c | 25 +++++++++++-------------- 2 files changed, 12 insertions(+), 14 deletions(-)