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=-20.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 C54B3C07E96 for ; Tue, 6 Jul 2021 12:13:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B12EA621F7 for ; Tue, 6 Jul 2021 12:13:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236679AbhGFMPx (ORCPT ); Tue, 6 Jul 2021 08:15:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:47620 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237164AbhGFLf6 (ORCPT ); Tue, 6 Jul 2021 07:35:58 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 93EA861ECD; Tue, 6 Jul 2021 11:25:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625570749; bh=iEXuc2D8om0atvMRk10gMHiPfJTXx2mXNvzdvpuYWCw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NfmKmCd85BMIZb9mjaduw0sRBOSGgi0Xb2J8bb1tMLBQUoE9HhKAURNCBXYadXb3L Ys1eAiVTBfAy/iY5q61u2oBX5iN9hEsymFtmJjlbFcKrEpuKQFBQ/4PI3RKSpqO5Dm vEtFnqVD5qGbTBQG2B0U9di+FIYCn2JgWxL4KyjOD3B5DrotQ8YGRKDB+cy/cdmF9E LQK4IKWdQlMHawe6bHvjDc7brTjWfUJeA+dTgrS/VZNIR3/DngcdFjaX7DeKQwq2Nb SiLciUgI5nxIftVb7lb8cLVxBagYf+N3UrhJEPmTfE3vevw7mdNNHqycG2jdV8n2Lj u/c85pRRn8F3w== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Wesley Chalmers , Dmytro Laktyushkin , Stylon Wang , Daniel Wheeler , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.4 37/74] drm/amd/display: Set DISPCLK_MAX_ERRDET_CYCLES to 7 Date: Tue, 6 Jul 2021 07:24:25 -0400 Message-Id: <20210706112502.2064236-37-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210706112502.2064236-1-sashal@kernel.org> References: <20210706112502.2064236-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 083c42e521f5..03a2e1d7f067 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -126,7 +126,7 @@ 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_display_init(struct dc *dc) { -- 2.30.2