From patchwork Thu Feb 7 16:21:06 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Michael_B=C3=BCsch?= X-Patchwork-Id: 16715 Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1U3Uw5-0003Ch-Tq; Thu, 07 Feb 2013 18:06:57 +0100 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.75/mailfrontend-3) with esmtp id 1U3Uw5-0003v5-E0; Thu, 07 Feb 2013 18:06:57 +0100 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758918Ab3BGRFm (ORCPT + 1 other); Thu, 7 Feb 2013 12:05:42 -0500 Received: from bues.ch ([80.190.117.144]:33773 "EHLO bues.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757499Ab3BGRFl (ORCPT ); Thu, 7 Feb 2013 12:05:41 -0500 X-Greylist: delayed 2591 seconds by postgrey-1.27 at vger.kernel.org; Thu, 07 Feb 2013 12:05:41 EST Received: by bues.ch with esmtpsa (Exim 4.72) (envelope-from ) id 1U3UF7-0006Uj-9S; Thu, 07 Feb 2013 17:22:33 +0100 Date: Thu, 7 Feb 2013 17:21:06 +0100 From: Michael =?UTF-8?B?QsO8c2No?= To: Mauro Carvalho Chehab Cc: linux-media Subject: [PATCH 4/4] fc0011: Return early, if the frequency is already tuned Message-ID: <20130207172106.1c8f4dd7@milhouse> X-Mailer: Claws Mail 3.8.1 (GTK+ 2.24.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 5.6.1.2065439, Antispam-Engine: 2.7.2.376379, Antispam-Data: 2013.2.7.165719 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' HTML_00_01 0.05, HTML_00_10 0.05, MIME_LOWER_CASE 0.05, MSGID_ADDED_BY_MTA 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_2000_2999 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, INVALID_MSGID_NO_FQDN 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __CT 0, __CTYPE_HAS_BOUNDARY 0, __CTYPE_MULTIPART 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __MIME_VERSION 0, __RUS_OBFU_PHONE 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __URI_NO_WWW 0, __URI_NS ' Return early, if we already tuned to a frequency. Signed-off-by: Michael Buesch Index: linux/drivers/media/tuners/fc0011.c =================================================================== --- linux.orig/drivers/media/tuners/fc0011.c 2013-01-01 23:25:40.000000000 +0100 +++ linux/drivers/media/tuners/fc0011.c 2013-01-01 23:27:44.985089712 +0100 @@ -187,6 +187,9 @@ u8 fa, fp, vco_sel, vco_cal; u8 regs[FC11_NR_REGS] = { }; + if (priv->frequency == p->frequency) + return 0; + regs[FC11_REG_7] = 0x0F; regs[FC11_REG_8] = 0x3E; regs[FC11_REG_10] = 0xB8;