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 15D58C433EF for ; Mon, 18 Apr 2022 12:58:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229527AbiDRNBT (ORCPT ); Mon, 18 Apr 2022 09:01:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59850 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241474AbiDRM6r (ORCPT ); Mon, 18 Apr 2022 08:58:47 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35F3C286FB; Mon, 18 Apr 2022 05:39:11 -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 ams.source.kernel.org (Postfix) with ESMTPS id E2421B80EDF; Mon, 18 Apr 2022 12:39:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10DA0C385A7; Mon, 18 Apr 2022 12:39:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1650285548; bh=w7aXpuwOrzhppGfZ0NAyhIFazOsTIW/sc7x6w0mpvO4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=efcOvuTwCCX2zfnznnA4Fmq56I3JRA9lK/PJ9MszPf2FxBZPvr7bGGcq/Sp7xYGDj ptHQUERiOREmYcY1nEZEoXDDR7KnfRniymLbZJT1dS8vOrLcFlnzKcboVvjqd6mloE WWwJPAJPVGfReK9Na1amlD52kNIIxN+jqGHrWGYE= 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 5.10 046/105] drm/amd/display: FEC check in timing validation Date: Mon, 18 Apr 2022 14:12:48 +0200 Message-Id: <20220418121147.788986359@linuxfoundation.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20220418121145.140991388@linuxfoundation.org> References: <20220418121145.140991388@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 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