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 39206C433F5 for ; Mon, 18 Apr 2022 12:29:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239044AbiDRMbh (ORCPT ); Mon, 18 Apr 2022 08:31:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239043AbiDRMa2 (ORCPT ); Mon, 18 Apr 2022 08:30:28 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8091C24BD2; Mon, 18 Apr 2022 05:23:49 -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 AA3D560EF4; Mon, 18 Apr 2022 12:23:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE7B1C385A7; Mon, 18 Apr 2022 12:23:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650284628; bh=fkf5ldK1t7XscBFXOpFzJDYdU3w9kmWDjQui+LrUG/4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sgDftx2bl+eh3JsACW1Sl5ratK6/phRM+FvDDso6mb+GXZxy1I9ss366yx99He9+n TrfSKz5TjVOsNyVNoB2dtv8PFc4H1VoVzT0rVOB2XFLkKVccOHyM7krSeCiqo6u6l7 9unqxL3OwEiAy/wyW/mRAOT3utd5uE7xbg7UWSdg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Anthony Koo , Alex Hung , Chiawen Huang , Daniel Wheeler , Alex Deucher , Sasha Levin Subject: [PATCH 5.17 136/219] drm/amd/display: FEC check in timing validation Date: Mon, 18 Apr 2022 14:11:45 +0200 Message-Id: <20220418121210.700622301@linuxfoundation.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220418121203.462784814@linuxfoundation.org> References: <20220418121203.462784814@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@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 62bc6ce88753..78e17a4af4ab 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1495,6 +1495,10 @@ 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