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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,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 1032DC433DF for ; Fri, 9 Oct 2020 08:58:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B971D222D5 for ; Fri, 9 Oct 2020 08:58:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732984AbgJII6U (ORCPT ); Fri, 9 Oct 2020 04:58:20 -0400 Received: from youngberry.canonical.com ([91.189.89.112]:52907 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732973AbgJII6T (ORCPT ); Fri, 9 Oct 2020 04:58:19 -0400 Received: from [222.129.38.193] (helo=localhost.localdomain) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1kQoED-0002z4-8J; Fri, 09 Oct 2020 08:58:18 +0000 From: Aaron Ma To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, aaron.ma@canonical.com, mapengyu@gmail.com, daniel@ffwll.ch, airlied@linux.ie, tzimmermann@suse.de, mripard@kernel.org, maarten.lankhorst@linux.intel.com, rodrigo.vivi@intel.com, joonas.lahtinen@linux.intel.com, jani.nikula@linux.intel.com, lyude@redhat.com, ville.syrjala@linux.intel.com Subject: [PATCH 2/2] drm/i915: Force DPCD backlight mode for BOE 2270 panel Date: Fri, 9 Oct 2020 16:57:50 +0800 Message-Id: <20201009085750.88490-2-aaron.ma@canonical.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201009085750.88490-1-aaron.ma@canonical.com> References: <20201009085750.88490-1-aaron.ma@canonical.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org BOE 2270 panel failed to control backlight brightness. Add it in edid quirks to force using DPCD backlight control. Then the brightness can be controlled. Signed-off-by: Aaron Ma --- drivers/gpu/drm/drm_dp_helper.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index 092c8c985911..417ed10bbf83 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -1324,6 +1324,7 @@ static const struct edid_quirk edid_quirk_list[] = { { MFG(0x4d, 0x10), PROD_ID(0xc7, 0x14), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) }, { MFG(0x4d, 0x10), PROD_ID(0xe6, 0x14), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) }, { MFG(0x4c, 0x83), PROD_ID(0x47, 0x41), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) }, + { MFG(0x09, 0xe5), PROD_ID(0xde, 0x08), BIT(DP_QUIRK_FORCE_DPCD_BACKLIGHT) }, }; #undef MFG -- 2.25.1