From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: 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 Message-ID: <52B04E3E.2040400@xs4all.nl> Date: Tue, 17 Dec 2013 14:14:38 +0100 From: Hans Verkuil 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> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: 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) || -- 1.8.4.rc3