From patchwork Wed Apr 17 00:42:40 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 2451861 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id C2A113FD8C for ; Wed, 17 Apr 2013 00:43:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756040Ab3DQAnP (ORCPT ); Tue, 16 Apr 2013 20:43:15 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33541 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756001Ab3DQAnI (ORCPT ); Tue, 16 Apr 2013 20:43:08 -0400 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r3H0h8D0021112 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Tue, 16 Apr 2013 20:43:08 -0400 Received: from pedra (vpn1-7-94.gru2.redhat.com [10.97.7.94]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r3H0gukr025208 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 16 Apr 2013 20:42:59 -0400 Received: from v4l by pedra with local (Exim 4.80.1) (envelope-from ) id 1USGSV-0001JB-7S; Tue, 16 Apr 2013 21:42:47 -0300 From: Mauro Carvalho Chehab Cc: Mauro Carvalho Chehab , Linux Media Mailing List Subject: [PATCH v2 29/31] [media] rtl2832: Fix IF calculus Date: Tue, 16 Apr 2013 21:42:40 -0300 Message-Id: <1366159362-3773-30-git-send-email-mchehab@redhat.com> In-Reply-To: <1366159362-3773-1-git-send-email-mchehab@redhat.com> References: <1366159362-3773-1-git-send-email-mchehab@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 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 Spectrum is inverted. So, we need to invert it when calculating the value for the IF register Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb-frontends/rtl2832.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index 2f5a2b5..facb848 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -396,7 +396,11 @@ static int rtl2832_set_if(struct dvb_frontend *fe, u32 if_freq) pset_iffreq = if_freq % priv->cfg.xtal; pset_iffreq *= 0x400000; pset_iffreq = div_u64(pset_iffreq, priv->cfg.xtal); + pset_iffreq = -pset_iffreq; pset_iffreq = pset_iffreq & 0x3fffff; + dev_dbg(&priv->i2c->dev, "%s: if_frequency=%d pset_iffreq=%08x\n", + __func__, if_freq, (unsigned)pset_iffreq); + ret = rtl2832_wr_demod_reg(priv, DVBT_EN_BBIN, en_bbin); if (ret) return ret;