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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 66E88CD98DE for ; Mon, 15 Jun 2026 12:35:05 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B90B210E3D6; Mon, 15 Jun 2026 12:35:04 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=rock-chips.com header.i=@rock-chips.com header.b="H2pYc5H4"; dkim-atps=neutral Received: from mail-m8372.xmail.ntesmail.com (mail-m8372.xmail.ntesmail.com [156.224.83.72]) by gabe.freedesktop.org (Postfix) with ESMTPS id 612C710E3D6 for ; Mon, 15 Jun 2026 12:35:02 +0000 (UTC) Received: from [172.16.12.74] (unknown [61.154.14.86]) by smtp.qiye.163.com (Hmail) with ESMTP id 427046fb6; Mon, 15 Jun 2026 20:34:58 +0800 (GMT+08:00) Message-ID: <8da02c6f-030d-4033-935b-a44c777a14d2@rock-chips.com> Date: Mon, 15 Jun 2026 20:34:58 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 0/4] Add eDP lane mapping support To: hjc@rock-chips.com, heiko@sntech.de, andy.yan@rock-chips.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@gmail.com, nicolas.frattaroli@collabora.com, cristian.ciocaltea@collabora.com, sebastian.reichel@collabora.com, dmitry.baryshkov@oss.qualcomm.com, luca.ceresoli@bootlin.com, dianders@chromium.org, m.szyprowski@samsung.com, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <20260604085220.2862986-1-damon.ding@rock-chips.com> Content-Language: en-US From: Damon Ding In-Reply-To: <20260604085220.2862986-1-damon.ding@rock-chips.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-HM-Tid: 0a9ecb4725bc03a8kunmad12dd9f4325 X-HM-MType: 1 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVkZShkaVhkYTxoaGEsYQhpIGVYVFA kWGhdVEwETFhoSFyQUDg9ZV1kYEgtZQVlNSlVKTk9VSk9VQ01ZV1kWGg8SFR0UWUFZT0tIVUpLSE pKQk1VSktLVUpCWQY+ DKIM-Signature: a=rsa-sha256; b=H2pYc5H4U519kPcqsLXiGZSqfal7roIZHKjog0oUnFm77yfp9eZTtdfOGTPLM5/Lcsv+XL4jWuNSRzLTovnS6ukbqMHh0l4IBojJTjDT+R0HGDUMdDikxtVT4j36p8sRGDPrJFuqrwx4ZAj5tX2uj6ZkKN0BqpTpcTwOo+O86QA=; s=default; c=relaxed/relaxed; d=rock-chips.com; v=1; bh=qY5kOzqcJfORXQNkdCMcMwTxAyKHZxf9POk2wrTq/zs=; h=date:mime-version:subject:message-id:from; X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Hi all, Gentle ping on this patch series. Best regards, Damon On 6/4/2026 4:52 PM, Damon Ding wrote: > This series adds configurable eDP physical lane mapping support via > device tree data-lanes property. > > Lane mapping is mainly used for below scenarios: > 1. Correct PCB lane swap and differential line routing crossover > without hardware changes; > 2. Adapt mismatched lane pin definitions between SoC and eDP panel; > 3. Support multiple panel hardware variants on the same board > by configuring data-lanes in device tree only. > > The series includes driver implementation and device tree binding > updates to support custom lane mapping configuration from endpoint > node, and keeps default linear lane order if no configuration is given. > > Patch 1: Add endpoint data-lanes property to analogix-dp binding > Patch 2: Add DRM DP helper API to validate DP lane counts > Patch 3: Add validation for samsung,lane-count property as preparation > Patch 4: Implement lane mapping in analogix_dp driver > > Damon Ding (4): > dt-bindings: display: bridge: analogix-dp: Add data-lanes support for > endpoint > drm/dp: Add helper to validate DP lane counts > drm/bridge: analogix_dp: Add validation for samsung,lane-count > property > drm/bridge: analogix_dp: Add support for optional data-lanes mapping > > .../bindings/display/bridge/analogix,dp.yaml | 19 ++++-- > .../rockchip/rockchip,analogix-dp.yaml | 1 + > .../drm/bridge/analogix/analogix_dp_core.c | 64 ++++++++++++++++++- > .../drm/bridge/analogix/analogix_dp_core.h | 4 +- > .../gpu/drm/bridge/analogix/analogix_dp_reg.c | 15 ++--- > .../gpu/drm/bridge/analogix/analogix_dp_reg.h | 4 ++ > include/drm/display/drm_dp_helper.h | 6 ++ > 7 files changed, 97 insertions(+), 16 deletions(-) > > --- > > Changes in v2: > - Add lane mapping application scenarios in commit message. > - Remove redundant deprecated property 'data-lanes' for eDP node. > - Update port@1 $ref to /schemas/graph.yaml#/$defs/port-base. > > Changes in v3: > - Squash [PATCH v2 2/3] into [PATCH v2 1/3]. > - Add unevaluatedProperties: false to both the port@1 and endpoint > nodes. > > Changes in v4: > - Add validation for samsung,lane-count property as preparation. > > Changes in v5: > - Add DRM DP helper API to validate DP lane counts. > - Apply DRM DP helper API to check the validity of samsung,lane-count > property. > - Add Acked-by and Reviewed-by tags. >