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 1B1C7C11F7F for ; Tue, 6 Jul 2021 11:20:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 04E7E61DAD for ; Tue, 6 Jul 2021 11:20:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234067AbhGFLXb (ORCPT ); Tue, 6 Jul 2021 07:23:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:54918 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231956AbhGFLSx (ORCPT ); Tue, 6 Jul 2021 07:18:53 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 585F061C58; Tue, 6 Jul 2021 11:16:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625570174; bh=V5xozR4nuZSnCU9y6noaDhHo7F8Fk/JOZVL7sZpw1Xo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MnnSY9l41T5LfCBomUXFBpMmdonm+2kv+FPUbdsWA0DnH88sjGmSPgbL3l8tFCxOg 1k2zIPuCWRrut9RLnVxwB44o19j4aBKdXyaJxtQ20yqzWuhEwOe/AYsR3iYjpnO0g9 Q15Gzh4I3vQWlmRTiTJc/Orb6b+rW9lPD1cfNhKxvxNPbvDQwqRG3pUj38z0ALfRPR L1NJIMjk/zVEJ6Jlqr08RnqHsZwgNIjr4h/ZJHhKFFt/1bYUg0l7DOyGPSKphT47AJ 3oPU7BN7qHssSc2XdzgAGUCHzKICDHbHZcvAUy62GvXGcECMhmDDCEYBGHNc1d0khc eMANmRLf9SaKw== 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 5.13 092/189] drm/amd/display: Set DISPCLK_MAX_ERRDET_CYCLES to 7 Date: Tue, 6 Jul 2021 07:12:32 -0400 Message-Id: <20210706111409.2058071-92-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210706111409.2058071-1-sashal@kernel.org> References: <20210706111409.2058071-1-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 6a10daec15cc..793554e61c52 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