From patchwork Sun Mar 8 14:40:39 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lad, Prabhakar" X-Patchwork-Id: 5962311 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EC9E89F2A9 for ; Sun, 8 Mar 2015 14:45:35 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3EE38202F0 for ; Sun, 8 Mar 2015 14:45:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6950020218 for ; Sun, 8 Mar 2015 14:45:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752773AbbCHOlJ (ORCPT ); Sun, 8 Mar 2015 10:41:09 -0400 Received: from mail-we0-f175.google.com ([74.125.82.175]:39130 "EHLO mail-we0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751826AbbCHOlG (ORCPT ); Sun, 8 Mar 2015 10:41:06 -0400 Received: by wevl61 with SMTP id l61so3899136wev.6; Sun, 08 Mar 2015 07:41:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=gjA3BPQ/o1NpfNqMTuolPwD6IwQL4FesJPzwxnIhLzc=; b=n32r0Cjt5tFDMwcvwlUh8Ma8uG+0ogzJjTgPJz19TqEihSlRor7G5wD1TOffjpXnn8 Z8ktP028acz9o7uMvv0jnt4nsxtP4/qvDTxOui5Q0J+n3CLEVnXxTsI0RfjFpqd9o5Rz P1a1Ay/1UxIbYqk3Cdz8jLjEg6h3+hf21toTkYL5maA4Nro/ati1V0xvZU2udgjfS3Um S6tItjIJVuNmWzUovmiE5gFPVzP8WuNcQ8pSAJX89oj3Qs65Tycukv4WBGYYx3eppHN5 Zy32CGRdisRR/y+wOB12z00Hw7eLiJdeD13RFgcgyQMqsdM4uj6/iY07XcS8IW8Qk7pn tF1g== X-Received: by 10.194.219.169 with SMTP id pp9mr2025237wjc.143.1425825664928; Sun, 08 Mar 2015 07:41:04 -0700 (PDT) Received: from tango-charlie.Home (0545247b.skybroadband.com. [5.69.36.123]) by mx.google.com with ESMTPSA id ka1sm24040321wjc.2.2015.03.08.07.41.03 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 08 Mar 2015 07:41:04 -0700 (PDT) From: Lad Prabhakar To: Scott Jiang , linux-media@vger.kernel.org, Hans Verkuil Cc: adi-buildroot-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, "Lad, Prabhakar" Subject: [PATCH v4 03/17] media: blackfin: bfin_capture: set min_buffers_needed Date: Sun, 8 Mar 2015 14:40:39 +0000 Message-Id: <1425825653-14768-4-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1425825653-14768-1-git-send-email-prabhakar.csengg@gmail.com> References: <1425825653-14768-1-git-send-email-prabhakar.csengg@gmail.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: "Lad, Prabhakar" this patch sets the min_buffers_needed field of the vb2 queue so that the vb2 core will make sure start_streaming() callback is called only when we have minimum buffers queued. Signed-off-by: Lad, Prabhakar Acked-by: Scott Jiang Tested-by: Scott Jiang --- drivers/media/platform/blackfin/bfin_capture.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c index 2c720bc..332f8c9 100644 --- a/drivers/media/platform/blackfin/bfin_capture.c +++ b/drivers/media/platform/blackfin/bfin_capture.c @@ -986,6 +986,7 @@ static int bcap_probe(struct platform_device *pdev) q->mem_ops = &vb2_dma_contig_memops; q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; q->lock = &bcap_dev->mutex; + q->min_buffers_needed = 1; ret = vb2_queue_init(q); if (ret)