From patchwork Fri Jun 19 14:32:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 223803 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 7891AC433E0 for ; Fri, 19 Jun 2020 16:22:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 54D9121707 for ; Fri, 19 Jun 2020 16:22:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592583775; bh=18KOcZajMmpY2rbqPpuMqji5HUMM1Fd6BXCK/THQZIg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=U+vX4MjQ2QopBDH3q4vG4+TI9awM175/6UEGWsrMXafK8eTGRAGr5+VjUBTahc9z2 Jc+Azv/5d+UVwIhZwNAJ/b/mPaSSy0QwqoVlwb5PaoENP0bQk/U7XVj4Z2KKpXduwL 16OtWuwcLOsUAhja4WSeEZNjAvc/tc3NloRug1kY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390583AbgFSO74 (ORCPT ); Fri, 19 Jun 2020 10:59:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:56234 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389916AbgFSO7z (ORCPT ); Fri, 19 Jun 2020 10:59:55 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B29B0218AC; Fri, 19 Jun 2020 14:59:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592578795; bh=18KOcZajMmpY2rbqPpuMqji5HUMM1Fd6BXCK/THQZIg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Nfnx7BBcnQmVBE6i1l0pNDSXawj3w1wB6RsyDaQxBdLVA++s6DuaLKqJ+SL76biyS iopllzBs8ZLh0w1L46bjjwpJ/cm+8n/pEvzdf7Dqo759mAu2M+HZnfntZnrgc49rUw Cub7Lci58kcbXLizvFp0h1WfzchosWguSAnWQe+E= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hans de Goede , Mario Limonciello , Andy Shevchenko , Sasha Levin Subject: [PATCH 4.19 152/267] platform/x86: intel-vbtn: Also handle tablet-mode switch on "Detachable" and "Portable" chassis-types Date: Fri, 19 Jun 2020 16:32:17 +0200 Message-Id: <20200619141656.121339159@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200619141648.840376470@linuxfoundation.org> References: <20200619141648.840376470@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Hans de Goede [ Upstream commit 1fac39fd0316b19c3e57a182524332332d1643ce ] Commit de9647efeaa9 ("platform/x86: intel-vbtn: Only activate tablet mode switch on 2-in-1's") added a DMI chassis-type check to avoid accidentally reporting SW_TABLET_MODE = 1 to userspace on laptops. Some devices with a detachable keyboard and using the intel-vbnt (INT33D6) interface to report if they are in tablet mode (keyboard detached) or not, report 32 / "Detachable" as chassis-type, e.g. the HP Pavilion X2 series. Other devices with a detachable keyboard and using the intel-vbnt (INT33D6) interface to report SW_TABLET_MODE, report 8 / "Portable" as chassis-type. The Dell Venue 11 Pro 7130 is an example of this. Extend the DMI chassis-type check to also accept Portables and Detachables so that the intel-vbtn driver will report SW_TABLET_MODE on these devices. Note the chassis-type check was originally added to avoid a false-positive tablet-mode report on the Dell XPS 9360 laptop. To the best of my knowledge that laptop is using a chassis-type of 9 / "Laptop", so after this commit we still ignore the tablet-switch for that chassis-type. Fixes: de9647efeaa9 ("platform/x86: intel-vbtn: Only activate tablet mode switch on 2-in-1's") Signed-off-by: Hans de Goede Reviewed-by: Mario Limonciello Signed-off-by: Andy Shevchenko Signed-off-by: Sasha Levin --- drivers/platform/x86/intel-vbtn.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c index 23cda7aa96cd..5f8120d12859 100644 --- a/drivers/platform/x86/intel-vbtn.c +++ b/drivers/platform/x86/intel-vbtn.c @@ -157,12 +157,22 @@ static void detect_tablet_mode(struct platform_device *device) static bool intel_vbtn_has_switches(acpi_handle handle) { const char *chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); + unsigned long chassis_type_int; unsigned long long vgbs; acpi_status status; - if (!(chassis_type && strcmp(chassis_type, "31") == 0)) + if (kstrtoul(chassis_type, 10, &chassis_type_int)) return false; + switch (chassis_type_int) { + case 8: /* Portable */ + case 31: /* Convertible */ + case 32: /* Detachable */ + break; + default: + return false; + } + status = acpi_evaluate_integer(handle, "VGBS", NULL, &vgbs); return ACPI_SUCCESS(status); }