From patchwork Mon May 18 17:36:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 225795 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=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, 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 3484EC433E2 for ; Mon, 18 May 2020 17:55:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0BA4520674 for ; Mon, 18 May 2020 17:55:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589824533; bh=MZoJruzevu0Mqm1XG+YDSEIaVLGDBxikzdKGaPu4uuM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=bnb4PayJU14R7K6cKLMtbK93jRcQ8Paqr/RMCFqN0A9WqmkCMVYJZ1stbNC4iwDYb hbPwsV7uGIzlOAgfQSV2/8GMCJzqkZho4ibmhtBnxQejblNMpZwkIO1K0gkQQHceqD 6CpK5UfOljMLOfSM3ufR8jOwGpKFLjS/c9rIaoPc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731442AbgERRzY (ORCPT ); Mon, 18 May 2020 13:55:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:60746 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731438AbgERRzX (ORCPT ); Mon, 18 May 2020 13:55:23 -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 77191207C4; Mon, 18 May 2020 17:55:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589824522; bh=MZoJruzevu0Mqm1XG+YDSEIaVLGDBxikzdKGaPu4uuM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Qkr0xF7uBcLN5F7jc2/YCfwHZ30muI7QUBgPNvxi/xH+nPu4BeROUdI+FIoyA44cK BkTHBKbOoUJ4AsiX64mjcwEqkU/RAXvrdNIb2GySV9aqADw9g95R7CXrsKw80rXaO3 lHonIA3D+KWRy1MU33XbS1lzv4xS/fSelEbxrp2I= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sung Lee , Yongqiang Sun , Aurabindo Pillai , Alex Deucher , Sasha Levin Subject: [PATCH 5.4 046/147] drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1 Date: Mon, 18 May 2020 19:36:09 +0200 Message-Id: <20200518173519.759606237@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200518173513.009514388@linuxfoundation.org> References: <20200518173513.009514388@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: 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,