From patchwork Tue Dec 17 13:14:38 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Verkuil X-Patchwork-Id: 3361591 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AE461C0D4A for ; Tue, 17 Dec 2013 13:17:09 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 29B26201F0 for ; Tue, 17 Dec 2013 13:17:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 942A420176 for ; Tue, 17 Dec 2013 13:17:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753624Ab3LQNQm (ORCPT ); Tue, 17 Dec 2013 08:16:42 -0500 Received: from smtp-vbr12.xs4all.nl ([194.109.24.32]:1267 "EHLO smtp-vbr12.xs4all.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753519Ab3LQNQm (ORCPT ); Tue, 17 Dec 2013 08:16:42 -0500 Received: from tschai.lan (209.80-203-20.nextgentel.com [80.203.20.209]) (authenticated bits=0) by smtp-vbr12.xs4all.nl (8.13.8/8.13.8) with ESMTP id rBHDGYrS016755; Tue, 17 Dec 2013 14:16:35 +0100 (CET) (envelope-from hverkuil@xs4all.nl) Received: from [10.54.92.107] (173-38-208-169.cisco.com [173.38.208.169]) by tschai.lan (Postfix) with ESMTPSA id 7DED82A2226; Tue, 17 Dec 2013 14:16:18 +0100 (CET) Message-ID: <52B04E3E.2040400@xs4all.nl> Date: Tue, 17 Dec 2013 14:14:38 +0100 From: Hans Verkuil User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131103 Icedove/17.0.10 MIME-Version: 1.0 To: linux-media@vger.kernel.org CC: Mats Randgaard , Hans Verkuil Subject: [RFC PATCH 16/15] adv7604: return immediately if the new timings are equal to what is configured References: <1386681800-6787-1-git-send-email-hverkuil@xs4all.nl> <785a2a2445d00fa190ea7cea4671c43fb68e2da5.1386681716.git.hans.verkuil@cisco.com> In-Reply-To: <785a2a2445d00fa190ea7cea4671c43fb68e2da5.1386681716.git.hans.verkuil@cisco.com> X-Virus-Scanned: by XS4ALL Virus Scanner Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-7.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham 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 Signed-off-by: Mats Randgaard Signed-off-by: Hans Verkuil --- drivers/media/i2c/adv7604.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c index cfeaaaf..a1fa9a0 100644 --- a/drivers/media/i2c/adv7604.c +++ b/drivers/media/i2c/adv7604.c @@ -1423,6 +1423,11 @@ static int adv7604_s_dv_timings(struct v4l2_subdev *sd, if (!timings) return -EINVAL; + if (v4l2_match_dv_timings(&state->timings, timings, 0)) { + v4l2_dbg(1, debug, sd, "%s: no change\n", __func__); + return 0; + } + bt = &timings->bt; if ((is_analog_input(sd) && bt->pixelclock > 170000000) ||