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=-16.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,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 6F936C07E9E for ; Tue, 6 Jul 2021 11:20:13 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 45FD461D76 for ; Tue, 6 Jul 2021 11:20:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 45FD461D76 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2AA6B6E301; Tue, 6 Jul 2021 11:20:12 +0000 (UTC) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 76C826E30D; Tue, 6 Jul 2021 11:20:11 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 5913361D61; Tue, 6 Jul 2021 11:20:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625570411; bh=t7IX/liNxtfiQqvMD8EFK1F85fVu6JNRUVWXiziupok=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HzT4s6zxWeG9wAR7NDINY3WwEJs9j1PaOU6arNKEG1u5o/XEPh5BsdVnzjKgYpUCy ME0p7urvwV7u/kK5K2K4qpZA4e1wGthWFjtHDBD4JKFUEEBj0lDnOuhZr1kDkPKl36 ySvzFiBvk6FS6GaIiZiSZCFu4J9rymYDgmJKbwznu20ObF2esGSRTaQbMMCz8JsvKa a985kKSaGJ70Lt3689HRCVCBFKkq64Cz6jDGPTgET7+/WjtRw0CqqHt5i5TttQXMCX DEMAfKkALG6jN5fAbk86sa9qH2p1JXc7PQzZD2G1NHEo0LNY3bixdkTWi5ym0rkxti Ybg3f0L//b8vQ== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 5.12 078/160] drm/amd/display: Set DISPCLK_MAX_ERRDET_CYCLES to 7 Date: Tue, 6 Jul 2021 07:17:04 -0400 Message-Id: <20210706111827.2060499-78-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210706111827.2060499-1-sashal@kernel.org> References: <20210706111827.2060499-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stylon Wang , Sasha Levin , Wesley Chalmers , amd-gfx@lists.freedesktop.org, Daniel Wheeler , Dmytro Laktyushkin , dri-devel@lists.freedesktop.org, Alex Deucher Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Wesley Chalmers [ Upstream commit 3577e1678772ce3ede92af3a75b44a4b76f9b4ad ] [WHY] DISPCLK_MAX_ERRDET_CYCLES must be 7 to prevent connection loss when changing DENTIST_DISPCLK_WDIVIDER from 126 to 127 and back. Signed-off-by: Wesley Chalmers Reviewed-by: Dmytro Laktyushkin Acked-by: Stylon Wang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index aece1103331d..d8a03d825623 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -243,7 +243,7 @@ void dcn20_dccg_init(struct dce_hwseq *hws) REG_WRITE(MILLISECOND_TIME_BASE_DIV, 0x1186a0); /* This value is dependent on the hardware pipeline delay so set once per SOC */ - REG_WRITE(DISPCLK_FREQ_CHANGE_CNTL, 0x801003c); + REG_WRITE(DISPCLK_FREQ_CHANGE_CNTL, 0xe01003c); } void dcn20_disable_vga( -- 2.30.2