From patchwork Sat Feb 21 18:39:49 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 5860451 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 BFAED9F380 for ; Sat, 21 Feb 2015 18:44:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0F11F20527 for ; Sat, 21 Feb 2015 18:44:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 431FD204FF for ; Sat, 21 Feb 2015 18:44:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752829AbbBUSny (ORCPT ); Sat, 21 Feb 2015 13:43:54 -0500 Received: from mail-wi0-f175.google.com ([209.85.212.175]:48802 "EHLO mail-wi0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751671AbbBUSkd (ORCPT ); Sat, 21 Feb 2015 13:40:33 -0500 Received: by mail-wi0-f175.google.com with SMTP id r20so9188429wiv.2; Sat, 21 Feb 2015 10:40:30 -0800 (PST) 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=5lU+CvR+M062yqMtrEcqMDyJtmiytzgqc6MrIuXOZX0=; b=UM3wzOx5hSj3twrLrd+x9sFjMFVHa9ssPW9BjrWmH+Xgp0cEoyPJ3YMYhJHPFNQr3h yezUeaEvYpLRa0c9zu8njK3cr8YRKy6r/Cq0cvMx9LbC1U2XE4KX81LzEDkWu48+rDwR 67U4Qts1VNjT4cMH2TysO8Q0G2q2E24bkKgm122yvKoYXffx6k70pBND/xvkLyKtWPLa 4h7D+4vXBX2BIhVNbKK1rQOQLqpuJqIJdAIM6w/QOibDaoYWnq2RwVJFiSEXkDNgLJTX fwDfwGU+R9qpYd/dMLHRZzCUWG/uME1Lr4S6SCJZHilXiGq000UPA09BO/tnqJ/Dh0j1 miwg== X-Received: by 10.180.205.210 with SMTP id li18mr6064132wic.39.1424544030835; Sat, 21 Feb 2015 10:40:30 -0800 (PST) Received: from tango-charlie.Home (0545247b.skybroadband.com. [5.69.36.123]) by mx.google.com with ESMTPSA id m9sm7986579wiz.24.2015.02.21.10.40.29 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 21 Feb 2015 10:40:29 -0800 (PST) From: Lad Prabhakar To: Scott Jiang , Hans Verkuil , adi-buildroot-devel@lists.sourceforge.net Cc: Mauro Carvalho Chehab , LMML , LKML , "Lad, Prabhakar" Subject: [PATCH v3 03/15] media: blackfin: bfin_capture: set min_buffers_needed Date: Sat, 21 Feb 2015 18:39:49 +0000 Message-Id: <1424544001-19045-4-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1424544001-19045-1-git-send-email-prabhakar.csengg@gmail.com> References: <1424544001-19045-1-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 --- 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)