From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D0FC8C10F03 for ; Fri, 8 Mar 2019 01:14:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9FD2820840 for ; Fri, 8 Mar 2019 01:14:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=flygoat.com header.i=@flygoat.com header.b="FEkwa0EW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726313AbfCHBOU (ORCPT ); Thu, 7 Mar 2019 20:14:20 -0500 Received: from forward105o.mail.yandex.net ([37.140.190.183]:46485 "EHLO forward105o.mail.yandex.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726270AbfCHBOU (ORCPT ); Thu, 7 Mar 2019 20:14:20 -0500 Received: from mxback1g.mail.yandex.net (mxback1g.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b7:162]) by forward105o.mail.yandex.net (Yandex) with ESMTP id 9DDEE42001D4; Fri, 8 Mar 2019 04:14:15 +0300 (MSK) Received: from smtp1o.mail.yandex.net (smtp1o.mail.yandex.net [2a02:6b8:0:1a2d::25]) by mxback1g.mail.yandex.net (nwsmtp/Yandex) with ESMTP id XQBHU9XJPq-EEvSTdhV; Fri, 08 Mar 2019 04:14:15 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=flygoat.com; s=mail; t=1552007655; bh=zQgmOuPHauIYP/cFipOGOKTAWItYVO0Kjour8IbZyR8=; h=In-Reply-To:From:To:Subject:Cc:Date:References:Message-ID; b=FEkwa0EWXyCZQZ62eTFXiXquteDRj7NpS2/rKUv2CxrzJz0aaPAlPS92NgcLVRoQz aIrUc+WEb5NMSlg8eLJlYytP9GIzlq3tGnhvoDml6NWkgQdzJu7Mavg/Ba+Bm/hxPd ddFRTPgKv7uURlDTFnTRcGBV5iVDXpua6nirLFKM= Authentication-Results: mxback1g.mail.yandex.net; dkim=pass header.i=@flygoat.com Received: by smtp1o.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id cMqbauXwXp-E5ra6tFk; Fri, 08 Mar 2019 04:14:11 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client certificate not present) Subject: Re: [PATCH] platform/x86: thinkpad_acpi: disable bluetooth for some machines To: Mario.Limonciello@dell.com, ibm-acpi@hmh.eng.br Cc: dvhart@infradead.org, andy@infradead.org, ibm-acpi-devel@lists.sourceforge.net, platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20190307080820.9723-1-jiaxun.yang@flygoat.com> <28af3c22ad144cf69284aa6f91ee6565@ausx13mpc124.AMER.DELL.COM> From: Jiaxun Yang Message-ID: Date: Fri, 8 Mar 2019 09:14:24 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.2 MIME-Version: 1.0 In-Reply-To: <28af3c22ad144cf69284aa6f91ee6565@ausx13mpc124.AMER.DELL.COM> Content-Type: text/plain; charset=gbk; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ÔÚ 2019/3/8 ÉÏÎç7:14, Mario.Limonciello@dell.com дµÀ: > -----Original Message----- >> From: platform-driver-x86-owner@vger.kernel.org > owner@vger.kernel.org> On Behalf Of Jiaxun Yang >> Sent: Thursday, March 7, 2019 2:08 AM >> To: ibm-acpi@hmh.eng.br >> Cc: dvhart@infradead.org; andy@infradead.org; ibm-acpi- >> devel@lists.sourceforge.net; platform-driver-x86@vger.kernel.org; linux- >> kernel@vger.kernel.org; stable@vger.kernel.org; Jiaxun Yang >> Subject: [PATCH] platform/x86: thinkpad_acpi: disable bluetooth for some >> machines >> >> >> [EXTERNAL EMAIL] >> >> Some AMD based ThinkPads have a firmware bug that calling >> "GBDC" will cause bluetooth on Intel wireless cards blocked. Hi, Thanks for your suggestions. > Since this is considered a firmware bug; has the OEM (and IBV) been notified? Is it > fixed in a newer version of the firmware? No. I've noticed them about the bug but they said these models have no official Linux support so no plan to fix. > If so, then this should probably only match particular broken firmware versions. Disable bluetooth subdriver on these models should be safe since Intel cards have built-in RFKill and there is no bluetooth hotkey on these machines. >> Probe these models by DMI match and disable bluetooth subdriver >> if specified Intel wireless card exist. >> >> Signed-off-by: Jiaxun Yang >> --- -- Jiaxun Yang