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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0298C433EF for ; Tue, 12 Apr 2022 00:59:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344254AbiDLA5s (ORCPT ); Mon, 11 Apr 2022 20:57:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34768 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343574AbiDLAz6 (ORCPT ); Mon, 11 Apr 2022 20:55:58 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6DDFA20BE9; Mon, 11 Apr 2022 17:49:25 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 171A8612A8; Tue, 12 Apr 2022 00:49:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85054C385A3; Tue, 12 Apr 2022 00:49:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1649724564; bh=w7aXpuwOrzhppGfZ0NAyhIFazOsTIW/sc7x6w0mpvO4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sbZi6wSO054UbIYStQaMjEtv6pSpjTUTPhc5BtI+PU+53KA5R73RGr38z1Y+4Fqnk zHWyWqHB8JaweYbOrSlwK3yHVclF8Fj7wLf8UDDuwVxoi74zsD+UHnxQrKzzgcwdhp EGicGQ2XZTkBSeKEx3TDjGw3ugcyD+6V3DdXPbvSCiLZXfVrMPWmLtyNoh7/5qmKCJ rHg+BTHXF3r9Fnlw20Wya4Rut/f/9plkk8baAsKtwt+DmCkEok63372fxPHLenuLW8 vCq0pzw9i5RHipgrw6jjVGGkazM51+1wp3KVP+12C22qo3H+AEzomreitObCLxbtAR sYEly7bDVdC4A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Chiawen Huang , Anthony Koo , Alex Hung , Daniel Wheeler , Alex Deucher , Sasha Levin , harry.wentland@amd.com, sunpeng.li@amd.com, Rodrigo.Siqueira@amd.com, christian.koenig@amd.com, Xinhui.Pan@amd.com, airlied@linux.ie, daniel@ffwll.ch, nicholas.kazlauskas@amd.com, Wayne.Lin@amd.com, Jun.Lei@amd.com, meenakshikumar.somasundaram@amd.com, michael.strauss@amd.com, Martin.Leung@amd.com, Jimmy.Kizito@amd.com, Eric.Yang2@amd.com, lee.jones@linaro.org, wenjing.liu@amd.com, roy.chan@amd.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.10 05/30] drm/amd/display: FEC check in timing validation Date: Mon, 11 Apr 2022 20:48:39 -0400 Message-Id: <20220412004906.350678-5-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220412004906.350678-1-sashal@kernel.org> References: <20220412004906.350678-1-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: Chiawen Huang [ Upstream commit 7d56a154e22ffb3613fdebf83ec34d5225a22993 ] [Why] disable/enable leads FEC mismatch between hw/sw FEC state. [How] check FEC status to fastboot on/off. Reviewed-by: Anthony Koo Acked-by: Alex Hung Signed-off-by: Chiawen Huang Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 93f5229c303e..ac5323596c65 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1173,6 +1173,10 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc, if (!link->link_enc->funcs->is_dig_enabled(link->link_enc)) return false; + /* Check for FEC status*/ + if (link->link_enc->funcs->fec_is_active(link->link_enc)) + return false; + enc_inst = link->link_enc->funcs->get_dig_frontend(link->link_enc); if (enc_inst == ENGINE_ID_UNKNOWN) -- 2.35.1