From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 83DF42E6865; Mon, 5 May 2025 23:02:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746486163; cv=none; b=aYLGQMjYO81fj/PxpUxdsCAuflrySC7fNngnKV2Oqlyrg0YmxQiYu6oB2eQ/Zuazh5PMw0FbC5PNrtDJQfeaxTtRE1OwUd7lvtqx7gbQ3kNWflHjK1FVFGnzJQIOYAIRKpQWd97Lh439ff2bNIJz/KHNQOLzYtTzmK5heXiz5fE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746486163; c=relaxed/simple; bh=wU0dJgQrN6llgCDacv/lF1XNbrIqJWn+Wj7cXZyNsmI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=qcS8fqpj9Xjmxs8/LOwy7tU2AxYrY4pA1uj7JVzoIP4WhNuNrzJNLBqrqHG6Px25iNfdOXhwCAy5Tdj0+4okgUwcBtf7VqzgeCgo6RsPQaMM3r+VfQSjw4aznjuygZt7VlP0zgDQQgtRbo7X5WVBioRll5DIL6kK+6TGsbiiA28= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=btRdZ39R; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="btRdZ39R" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 514D2C4CEEE; Mon, 5 May 2025 23:02:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746486162; bh=wU0dJgQrN6llgCDacv/lF1XNbrIqJWn+Wj7cXZyNsmI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=btRdZ39RowItPcG1IjdkuG3ViimP0mqo30qhK3Ix0SKcJw/i/EB2JzBMhNQEH/Hve w2clRGsEQvlcUNpQyZr016nJudQ8ovn17izfxUeAg93d2WY1svkcqohCuI9xtk1LMe NjSQwLpt/2jHM61iXOlmZW2hixt34aL5pmSaPW1jzytAsnVpSIueKHaFvoaPmhJJ3n TWmPqEhpUvU4dbRDIFNvYBJri0TqaaheeTQpeLy1ByMF0paACjFjJ68U5cKTPKdkLp ebhudl3LyAKoeMiom9RdpsJ0mbXw6WcxNAC+J/UpKiGsANZxnwO336UxKMDrg7diPl +QO05lR08xtwg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Harry VanZyllDeJong , Wenjing Liu , Roman Li , Daniel Wheeler , Alex Deucher , Sasha Levin , harry.wentland@amd.com, sunpeng.li@amd.com, christian.koenig@amd.com, airlied@gmail.com, simona@ffwll.ch, alex.hung@amd.com, michael.strauss@amd.com, george.shen@amd.com, PeiChen.Huang@amd.com, Ausef.Yousof@amd.com, Cruise.Hung@amd.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 6.6 185/294] drm/amd/display: Add support for disconnected eDP streams Date: Mon, 5 May 2025 18:54:45 -0400 Message-Id: <20250505225634.2688578-185-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505225634.2688578-1-sashal@kernel.org> References: <20250505225634.2688578-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.6.89 Content-Transfer-Encoding: 8bit From: Harry VanZyllDeJong [ Upstream commit 6571bef25fe48c642f7a69ccf7c3198b317c136a ] [Why] eDP may not be connected to the GPU on driver start causing fail enumeration. [How] Move the virtual signal type check before the eDP connector signal check. Reviewed-by: Wenjing Liu Signed-off-by: Harry VanZyllDeJong Signed-off-by: Roman Li Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- .../gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c index 1e621eae9b7da..adf0ef8b70e4b 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_capability.c @@ -920,6 +920,9 @@ bool link_decide_link_settings(struct dc_stream_state *stream, * TODO: add MST specific link training routine */ decide_mst_link_settings(link, link_setting); + } else if (stream->signal == SIGNAL_TYPE_VIRTUAL) { + link_setting->lane_count = LANE_COUNT_FOUR; + link_setting->link_rate = LINK_RATE_HIGH3; } else if (link->connector_signal == SIGNAL_TYPE_EDP) { /* enable edp link optimization for DSC eDP case */ if (stream->timing.flags.DSC) { -- 2.39.5