From patchwork Mon Nov 9 12:54:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 322813 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=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,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 9896DC4741F for ; Mon, 9 Nov 2020 12:57:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 460FB207BC for ; Mon, 9 Nov 2020 12:57:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604926656; bh=A0dAmRkpVyT+YuCb6jBIEwCgDTvxTbMIIX17t2QM7nI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xnSfPoApPvn2Z351HudNBeiPnHQNy6UIx8B3nbcXzI4svucg0qF5ZOHuxLscuc5JK 7CZ7r4XFEWJZ4jVb5f1lK9i7dt+zf6vnRfDVlle4/qsJK3hcCWRiMwcIRTX8SPNAlP lpNBt1NsV6S0c+91oJHGhOgugIA46HF4/Oe6Ww9M= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730006AbgKIM5f (ORCPT ); Mon, 9 Nov 2020 07:57:35 -0500 Received: from mail.kernel.org ([198.145.29.99]:51894 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729972AbgKIM5P (ORCPT ); Mon, 9 Nov 2020 07:57:15 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 B8E0C207BC; Mon, 9 Nov 2020 12:57:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604926635; bh=A0dAmRkpVyT+YuCb6jBIEwCgDTvxTbMIIX17t2QM7nI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WTK/Y6N4S3rd/4jC0GwSLS6E6TxmucFfKHIahJEaAAKGWjEPWRyApNqk0VV6s2qW9 vqkHwJEQh6/naMyJJuD30ddrehtZ7BKP9IgwCjcw2kcwkiBRpbcvbQMNGE9sFPv3WQ th9V1QpIC6zRnnjeP9z/UHBLnpGc0o7Luv/QXmZ0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alex Hung , "Rafael J. Wysocki" Subject: [PATCH 4.4 37/86] ACPI: video: use ACPI backlight for HP 635 Notebook Date: Mon, 9 Nov 2020 13:54:44 +0100 Message-Id: <20201109125022.637113532@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201109125020.852643676@linuxfoundation.org> References: <20201109125020.852643676@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Alex Hung commit b226faab4e7890bbbccdf794e8b94276414f9058 upstream. The default backlight interface is AMD's radeon_bl0 which does not work on this system, so use the ACPI backlight interface on it instead. BugLink: https://bugs.launchpad.net/bugs/1894667 Cc: All applicable Signed-off-by: Alex Hung [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/video_detect.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -251,6 +251,15 @@ static const struct dmi_system_id video_ DMI_MATCH(DMI_PRODUCT_NAME, "XPS L521X"), }, }, + /* https://bugs.launchpad.net/bugs/1894667 */ + { + .callback = video_detect_force_video, + .ident = "HP 635 Notebook", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP 635 Notebook PC"), + }, + }, /* Non win8 machines which need native backlight nevertheless */ {