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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 D0239C433E2 for ; Tue, 9 Jun 2020 01:09:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A377D2076C for ; Tue, 9 Jun 2020 01:09:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591664967; bh=3oEk9mUz7kFZ8N7UDTVPNCIcRQV9ynzwPxO6yqrMMG8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Hk1bnY2eMU0RmbHugL1kfWqU8QwLpetnN3ReYZ/GiBsAKiI2FibrsIYB+YxVaQwgG 3RrU9pHCpuEEDzqoY/Y07RDW+9emiceubhISHu8zWgofK9fZxxDoClZk47CFo+jUgH LlCg4nI0FX92X4cqsYgvoK4lG4E1FLuF59l7g/OQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727002AbgFHXGa (ORCPT ); Mon, 8 Jun 2020 19:06:30 -0400 Received: from mail.kernel.org ([198.145.29.99]:49614 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726907AbgFHXG3 (ORCPT ); Mon, 8 Jun 2020 19:06:29 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 63C72207C3; Mon, 8 Jun 2020 23:06:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591657589; bh=3oEk9mUz7kFZ8N7UDTVPNCIcRQV9ynzwPxO6yqrMMG8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=O1G6T/3h0cD1CgsrG2CMDTkYYVJVjhUACx6N789p9wA671H2++M7S+HTvfCazI2kF Zovdjvb7GLvVnULP/uoaJB/w4Wu1lEaMotGRGHz4EfviOp+jUWaX4mJVJgdW997M5O GfsYCKdEb4X/BH6sIZIiaqmTIcBAV594Ln4ayxgU= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Dmytro Laktyushkin , Eric Bernstein , Rodrigo Siqueira , Alex Deucher , Sasha Levin , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.7 017/274] drm/amd/display: fix virtual signal dsc setup Date: Mon, 8 Jun 2020 19:01:50 -0400 Message-Id: <20200608230607.3361041-17-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200608230607.3361041-1-sashal@kernel.org> References: <20200608230607.3361041-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dmytro Laktyushkin [ Upstream commit d5bef51f084fccafa984b114ff74a01a64a0e2e3 ] This prevents dpcd access on virtual links. Signed-off-by: Dmytro Laktyushkin Reviewed-by: Eric Bernstein Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index 51e0ee6e7695..6590f51caefa 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -400,7 +400,7 @@ static bool dp_set_dsc_on_rx(struct pipe_ctx *pipe_ctx, bool enable) struct dc_stream_state *stream = pipe_ctx->stream; bool result = false; - if (IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) + if (dc_is_virtual_signal(stream->signal) || IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) result = true; else result = dm_helpers_dp_write_dsc_enable(dc->ctx, stream, enable); -- 2.25.1