From patchwork Mon Mar 10 11:59:06 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 3802601 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 [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id ACFF79F369 for ; Mon, 10 Mar 2014 12:00:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E12232022A for ; Mon, 10 Mar 2014 12:00:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EE9B9201BA for ; Mon, 10 Mar 2014 12:00:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753465AbaCJL77 (ORCPT ); Mon, 10 Mar 2014 07:59:59 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:50461 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753456AbaCJL7z (ORCPT ); Mon, 10 Mar 2014 07:59:55 -0400 Received: from [201.74.152.26] (helo=smtp.w2.samsung.com) by bombadil.infradead.org with esmtpsa (Exim 4.80.1 #2 (Red Hat Linux)) id 1WMys5-000545-P2; Mon, 10 Mar 2014 11:59:54 +0000 Received: from mchehab by smtp.w2.samsung.com with local (Exim 4.80.1) (envelope-from ) id 1WMyrN-0001R3-Jn; Mon, 10 Mar 2014 08:59:09 -0300 From: Mauro Carvalho Chehab Cc: Mauro Carvalho Chehab , Linux Media Mailing List , Mauro Carvalho Chehab Subject: [PATCH 14/15] drx-j: Fix detection of no signal Date: Mon, 10 Mar 2014 08:59:06 -0300 Message-Id: <1394452747-5426-15-git-send-email-m.chehab@samsung.com> X-Mailer: git-send-email 1.8.5.3 In-Reply-To: <1394452747-5426-1-git-send-email-m.chehab@samsung.com> References: <1394452747-5426-1-git-send-email-m.chehab@samsung.com> To: unlisted-recipients:; (no To-header on input) Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 When the signal is 7, it means that no signal was received. Value experimentally measured. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/drx39xyj/drxj.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/media/dvb-frontends/drx39xyj/drxj.c b/drivers/media/dvb-frontends/drx39xyj/drxj.c index 9958277dd943..8098d87cda0b 100644 --- a/drivers/media/dvb-frontends/drx39xyj/drxj.c +++ b/drivers/media/dvb-frontends/drx39xyj/drxj.c @@ -9420,6 +9420,9 @@ static int get_sig_strength(struct drx_demod_instance *demod, u16 *sig_strength) *sig_strength = (20 * if_gain / if_agc_sns); } + if (*sig_strength <= 7) + *sig_strength = 0; + return 0; rw_error: return -EIO;