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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 9D9F8C43381 for ; Wed, 27 Mar 2019 18:46:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5D756205C9 for ; Wed, 27 Mar 2019 18:46:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553712366; bh=B4aMYa+cIejUmgDXqgxOO9Cjw8o8uBXUuattWrkkUaY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Jxj7EYgBfcOpO4TdbaxmZfrtuFYjbBbQxFg6AEsIBbiSUUepb36xKmkb7Jpwuzq1M A9qgJ8dcrCV+yiyDsdPGUPwyqmukje5/GcAa5Kiw+nthlXnpH+Tof2qDcQgb5S3WHN HTgQQLanOWdCvdZRrvmiyp+UwNXjswhrNn5+kqt4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403774AbfC0SqE (ORCPT ); Wed, 27 Mar 2019 14:46:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:38292 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390441AbfC0SUk (ORCPT ); Wed, 27 Mar 2019 14:20:40 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B656C20651; Wed, 27 Mar 2019 18:20:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553710839; bh=B4aMYa+cIejUmgDXqgxOO9Cjw8o8uBXUuattWrkkUaY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dlQ/fij13qDdpGu6IdhXFwej1Zx84FmjE3/w0KInMgrMkVbAqySdrpdThsZX+8vKi KVLI99uwY4pnmJjv7LMRHyIkj9d79hG65VEYg4it9CfGxn89FIYm8EdSTST0qo2OJ1 Rmrpjmm492+7so9Q9jmzLxFxmOTYBefdKITerlMY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hans de Goede , "Rafael J . Wysocki" , Sasha Levin , linux-acpi@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 123/123] ACPI / video: Extend chassis-type detection with a "Lunch Box" check Date: Wed, 27 Mar 2019 14:16:27 -0400 Message-Id: <20190327181628.15899-123-sashal@kernel.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190327181628.15899-1-sashal@kernel.org> References: <20190327181628.15899-1-sashal@kernel.org> MIME-Version: 1.0 X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hans de Goede [ Upstream commit d693c008e3ca04db5916ff72e68ce661888a913b ] Commit 53fa1f6e8a59 ("ACPI / video: Only default only_lcd to true on Win8-ready _desktops_") introduced chassis type detection, limiting the lcd_only check for the backlight to devices where the chassis-type indicates their is no builtin LCD panel. The purpose of the lcd_only check is to avoid advertising a backlight interface on desktops, since skylake and newer machines seem to always have a backlight interface even if there is no LCD panel. The limiting of this check to desktops only was done to avoid breaking backlight support on some laptops which do not have the lcd flag set. The Fujitsu ESPRIMO Q910 which is a compact (NUC like) desktop machine has a chassis type of 0x10 aka "Lunch Box". Without the lcd_only check we end up falsely advertising backlight/brightness control on this device. This commit extend the dmi_is_desktop check to return true for type 0x10 to fix this. Fixes: 53fa1f6e8a59 ("ACPI / video: Only default only_lcd to true ...") Signed-off-by: Hans de Goede Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/acpi_video.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 9f56c066227c..e39a1489cc72 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -2142,6 +2142,7 @@ static bool dmi_is_desktop(void) case 0x05: /* Pizza Box */ case 0x06: /* Mini Tower */ case 0x07: /* Tower */ + case 0x10: /* Lunch Box */ case 0x11: /* Main Server Chassis */ return true; } -- 2.19.1