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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 5AEBAC38A2A for ; Thu, 7 May 2020 14:34:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 370F22073A for ; Thu, 7 May 2020 14:34:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588862079; bh=MZoJruzevu0Mqm1XG+YDSEIaVLGDBxikzdKGaPu4uuM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=UOB5P6W/sq5hNSaLx6td+FYWCvz6xRFIU6pcBbHRqoIzIBNX8VoqBz5oL0sClFV8N ekhtAHIA9BBTfibb43cgpVasYWzz+IXtsTMWwodQ+luteWLSpNGEzq5IK1CwGRMpQe Y9VcHn1kDyXpeAzdE6qMZ5mK63plChe64EdwaCX4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726393AbgEGOeg (ORCPT ); Thu, 7 May 2020 10:34:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:56302 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728421AbgEGO3G (ORCPT ); Thu, 7 May 2020 10:29:06 -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 3AFB72184D; Thu, 7 May 2020 14:29:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588861746; bh=MZoJruzevu0Mqm1XG+YDSEIaVLGDBxikzdKGaPu4uuM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kW+J2htEAL1H1HndU6CWy0/3crLNewSkRIL8sT6fZTLUZSsyEKTwaitrxIKsc5d2+ w9LAiBYEszMI386dzljCEAaLy3XQikj7eZJdN/aNskSLWIWdVo+TttGMAZ8r4Yx24q QEadb5h1iwLyj7SFupEr3ZMMezIvG16FGT1JJQqQ= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sung Lee , Yongqiang Sun , Aurabindo Pillai , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.4 28/35] drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1 Date: Thu, 7 May 2020 10:28:22 -0400 Message-Id: <20200507142830.26239-28-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200507142830.26239-1-sashal@kernel.org> References: <20200507142830.26239-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Sung Lee [ Upstream commit 668a6741f809f2d15d125cfe2b39661e8f1655ea ] [WHY] The downspread percentage was copied over from a previous version of the display_mode_lib spreadsheet. This value has been updated, and the previous value is too high to allow for such modes as 4K120hz. The new value is sufficient for such modes. [HOW] Update the value in dcn21_resource to match the spreadsheet. Signed-off-by: Sung Lee Reviewed-by: Yongqiang Sun Acked-by: Aurabindo Pillai Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c index 161bf7caf3ae0..bb7add5ea2273 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c @@ -247,7 +247,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_1_soc = { .dram_channel_width_bytes = 4, .fabric_datapath_to_dcn_data_return_bytes = 32, .dcn_downspread_percent = 0.5, - .downspread_percent = 0.5, + .downspread_percent = 0.38, .dram_page_open_time_ns = 50.0, .dram_rw_turnaround_time_ns = 17.5, .dram_return_buffer_per_channel_bytes = 8192, -- 2.20.1