From patchwork Mon May 11 19:00:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larry Finger X-Patchwork-Id: 6383221 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E292B9F32B for ; Mon, 11 May 2015 19:01:13 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0D10320B69 for ; Mon, 11 May 2015 19:01:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0998E20B70 for ; Mon, 11 May 2015 19:01:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752530AbbEKTAx (ORCPT ); Mon, 11 May 2015 15:00:53 -0400 Received: from mail-ob0-f171.google.com ([209.85.214.171]:34833 "EHLO mail-ob0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753671AbbEKTAq (ORCPT ); Mon, 11 May 2015 15:00:46 -0400 Received: by obcus9 with SMTP id us9so77631787obc.2; Mon, 11 May 2015 12:00:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id; bh=i4E/wquTcEPxtDtIm615vjkIM//pGWmOOnxBIGPl0ZQ=; b=f6wG6X5IcjDs5r1Owc9WqUrb6ZA71rZndn1/HE0jzM7Aov86qhF+eRegcHiwOWhIDX 7RcHbvPRB157NIAs0pw1zYkYrmXUNXWScgmzJ57xO88SuqmS2C798DPExur+Qb1XW93e rE+ID/00+AeRKog/ZvPFQXQYhZYwzxccJJJQTBKTMHFZqga9Ng4duDudGv8xFIvFHj0s SGji9Adi2CV4fX/2s0h8yYHvPbeqy0aM7q4H1KTV4O0kaH5Qu8M8gmQjbuRonh7ttALu G78H/CRQaEt9EFP2aRI2APK63cGJLntrQxc7vS1wQoXwKI9PfDeY42LoG5qe4bRvrZ3v SG4A== X-Received: by 10.182.129.105 with SMTP id nv9mr9200785obb.69.1431370845513; Mon, 11 May 2015 12:00:45 -0700 (PDT) Received: from linux.site.site (cpe-72-133-230-77.kc.res.rr.com. [72.133.230.77]) by mx.google.com with ESMTPSA id bt6sm9489475obd.0.2015.05.11.12.00.43 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 11 May 2015 12:00:44 -0700 (PDT) From: Larry Finger To: kvalo@codeaurora.org, netdev@vger.kernel.org Cc: linux-wireless@vger.kernel.org, Daniel Drake , Larry Finger , Shao Fu Subject: [PATCH NEXT] rtlwifi: btcoexist: Fix interference between rtl8723be and Bluetooth Date: Mon, 11 May 2015 14:00:27 -0500 Message-Id: <1431370827-13324-1-git-send-email-Larry.Finger@lwfinger.net> X-Mailer: git-send-email 2.1.4 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID,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 From: Daniel Drake During usage of the new Bluetooth driver for Realtek devices, it was found that BT scans were inhibited for the RTL8723BE when wireless was active. The exact cause of this interference is not known yet, but a satisfactory work around has been found that does not seem to have any visible side effects. Signed-off-by: Daniel Drake Signed-off-by: Larry Finger Cc: Shao Fu --- drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c b/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c index cefe269..f2b9d11 100644 --- a/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c +++ b/drivers/net/wireless/rtlwifi/btcoexist/halbtc8723b2ant.c @@ -1286,8 +1286,11 @@ static void btc8723b2ant_ps_tdma(struct btc_coexist *btcoexist, bool force_exec, 0x12, 0xe1, 0x90); break; case 3: - btc8723b2ant_set_fw_ps_tdma(btcoexist, 0xe3, 0x1c, - 0x3, 0xf1, 0x90); + /* This call breaks BT when wireless is active - + * comment it out for now until a better fix is found: + * btc8723b2ant_set_fw_ps_tdma(btcoexist, 0xe3, 0x1c, + * 0x3, 0xf1, 0x90); + */ break; case 4: btc8723b2ant_set_fw_ps_tdma(btcoexist, 0xe3, 0x10,