From patchwork Tue Jun 23 19:58:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 223445 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=-7.0 required=3.0 tests=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 C72D3C433DF for ; Tue, 23 Jun 2020 20:33:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B38D20836 for ; Tue, 23 Jun 2020 20:33:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592944437; bh=Ciqu/rlqehBtA7qIB5psFoxsNKKg8C99s+mKMZmV3fc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=efPC4yTBy2Ta+iR19zJ/xOsQ+XiS4i2XWG/j33ZwlqhR/OICBd1wP6krNx5yV0t/L gEgrcSNgcwbBA6keXQU5eShEqka8J4+c1kKfm3cEapE2FFBUSufTTBgV2iDJ/L+v/N QyKrj+FbphAkEo1hmXZPZVKa0I6jUaXhgRQTMetE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391467AbgFWUdz (ORCPT ); Tue, 23 Jun 2020 16:33:55 -0400 Received: from mail.kernel.org ([198.145.29.99]:55492 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391463AbgFWUdy (ORCPT ); Tue, 23 Jun 2020 16:33:54 -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 DE9D22085B; Tue, 23 Jun 2020 20:33:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592944434; bh=Ciqu/rlqehBtA7qIB5psFoxsNKKg8C99s+mKMZmV3fc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=irb9ZntR6f3p7emFFCExg4JFCfiQeQEnfoMd9LpHORXBoMeJ3y9wMonLN4+mP2Zkl CiLjLiCdxI2+bd6mxOBLtW9Kz/t+DiTk+cg2h3JSSt0nRoDEXHq1at411kcdz/8/c5 Ws300Iv5QvgYUFT7vRt7mE+M2YHRO5LrGVcoxFPA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexander Monakov , Hersen Wu , Anthony Koo , Michael Chiu , Harry Wentland , Alex Deucher , Nicholas Kazlauskas Subject: [PATCH 5.4 304/314] Revert "drm/amd/display: disable dcn20 abm feature for bring up" Date: Tue, 23 Jun 2020 21:58:19 +0200 Message-Id: <20200623195353.497652206@linuxfoundation.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200623195338.770401005@linuxfoundation.org> References: <20200623195338.770401005@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: Harry Wentland commit 14ed1c908a7a623cc0cbf0203f8201d1b7d31d16 upstream. This reverts commit 96cb7cf13d8530099c256c053648ad576588c387. This change was used for DCN2 bringup and is no longer desired. In fact it breaks backlight on DCN2 systems. Cc: Alexander Monakov Cc: Hersen Wu Cc: Anthony Koo Cc: Michael Chiu Signed-off-by: Harry Wentland Acked-by: Alex Deucher Reviewed-by: Nicholas Kazlauskas Reported-and-tested-by: Alexander Monakov Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -929,7 +929,7 @@ static int dm_late_init(void *handle) unsigned int linear_lut[16]; int i; struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu; - bool ret = false; + bool ret; for (i = 0; i < 16; i++) linear_lut[i] = 0xFFFF * i / 15; @@ -945,13 +945,10 @@ static int dm_late_init(void *handle) */ params.min_abm_backlight = 0x28F; - /* todo will enable for navi10 */ - if (adev->asic_type <= CHIP_RAVEN) { - ret = dmcu_load_iram(dmcu, params); - - if (!ret) - return -EINVAL; - } + ret = dmcu_load_iram(dmcu, params); + + if (!ret) + return -EINVAL; return detect_mst_link_for_all_connectors(adev->ddev); }