From patchwork Thu Nov 26 09:20:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AceLan Kao X-Patchwork-Id: 1406498 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.ubuntu.com (client-ip=91.189.94.19; helo=huckleberry.canonical.com; envelope-from=kernel-team-bounces@lists.ubuntu.com; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=canonical.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=Gg/VNb1B; dkim-atps=neutral Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4ChXKf4391z9sTv; Thu, 26 Nov 2020 20:20:22 +1100 (AEDT) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.86_2) (envelope-from ) id 1kiDRp-0000un-PR; Thu, 26 Nov 2020 09:20:17 +0000 Received: from mail-pf1-f194.google.com ([209.85.210.194]) by huckleberry.canonical.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1kiDRo-0000ua-2Q for kernel-team@lists.ubuntu.com; Thu, 26 Nov 2020 09:20:16 +0000 Received: by mail-pf1-f194.google.com with SMTP id w6so1139960pfu.1 for ; Thu, 26 Nov 2020 01:20:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=BO7KLhLVtkV3dGuas7z63dA6qryE1Zy0g0sQc3X5Om0=; b=Gg/VNb1BPi6ET1Tao8b4MEdadfYn4N2py0BuCb2gFFRF6axZQAe+TewIqLxUbrx5s/ ooRzaAtlH3vNkfUefoL0X47C8D9wPIImxW/IDaeBER1n0KqU3hTIZJtgwi3ZqsnJYvS3 H3uhp3W+F5qFTbl/o4JoX5zHQ/mgJZEwGBFoDvysFd8fwstX4aeNh0Ck/yX3uhWudkX2 9RETR80tu9ZO/VtAYRiHG3ZAueqUgqlBSoXfc8gQv+LAiWXjWRGLCtPbBifBTE4xOsWL FfZOs3zvOYvugfdV8U698YMY6jNlC+XGrx2gogLr+dOf3x62mF14sjfGL84TGpjx/fuo /q3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:subject:date:message-id :mime-version:content-transfer-encoding; bh=BO7KLhLVtkV3dGuas7z63dA6qryE1Zy0g0sQc3X5Om0=; b=lilKNsd1mKjRh0pqMmRo+qqqdaoJE6Lq2NQ2MBibHvoAWwbfAbc5Wo6MrRpqb9gI5P 2GmgNMZGsRHyHTh3RSnvw3GKvv6KTqAhySuaES0AflGZhtCnx7moIfNcTDSzUXYfHqxQ elHOvRfXlUvKbLzJKpvm8nDXLgzo2qNV7K7twLC8j64sTXzd6NxjM7E3eyeAd2l/vVjy c04RSCBQXG78CbauAIPfGDRN3A8rhYCCLU9rYHpKh32tJ61QH5yf1zTk26sBhEAIqg8j YncEZ4VV4hjMPKl3iR7Rm8YmUYEUYQffb7CatvMxkPj7EA9XZKvQwPBxfv0L5x6NXx1V UNrQ== X-Gm-Message-State: AOAM532wuh4FiSqA53B8RkQA3ilFszy6k+iELUwqyH6vggiDe712ll4Y F9UgwIDZAXv8X+Q64fHHwJlHBYzr3LRFew== X-Google-Smtp-Source: ABdhPJz94NrFFU0U9MTzv7v/T6N9rx8PzrFCkwfkMn4yx3Kz0SEWlt6lFYDBF/4UDzEXEtMiqzt8Xw== X-Received: by 2002:a63:4912:: with SMTP id w18mr1877000pga.9.1606382413966; Thu, 26 Nov 2020 01:20:13 -0800 (PST) Received: from localhost (61-220-137-37.HINET-IP.hinet.net. [61.220.137.37]) by smtp.gmail.com with ESMTPSA id u4sm4904505pjg.55.2020.11.26.01.20.12 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Nov 2020 01:20:13 -0800 (PST) From: AceLan Kao To: kernel-team@lists.ubuntu.com Subject: [PATCH 0/1][SRU][F][G][H][OEM-5.6] Add dpcd backlight control Date: Thu, 26 Nov 2020 17:20:10 +0800 Message-Id: <20201126092011.342429-1-acelan.kao@canonical.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Received-SPF: pass client-ip=209.85.210.194; envelope-from=acelan@gmail.com; helo=mail-pf1-f194.google.com X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/1905663 [Impact] There is a new OLED panel that is required to be listed in the EDID quirk to make its backlight work. [Fix] The commit adds its EDID to the quirk. https://lkml.org/lkml/2020/11/19/1564 [Test] Verified on Dell's platform with this panel. [Where problems could occur] Only if this panel switches to use PWM mode only, and doesn't support DPCD backlight. Kai-Chuan Hsieh (1): UBUNTU: SAUCE: drm/dp: Add dpcd backlight control for 0x4c83 0x4f41 drivers/gpu/drm/drm_dp_helper.c | 1 + 1 file changed, 1 insertion(+)