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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 EC797CCD1A1 for ; Thu, 16 Oct 2025 02:29:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=YHT4Mxhe+zSodIVHd2qzlGnysBWHBxMufel41tGudBs=; b=R2TD0cfp30O5L7ALgrQPN7dziZ G2Tx4Vo1oAu6QySmw/4CUaKrVIMthJL3HhXpDM/9bSbqSiIjP2zk0SG9PGe39WVWhURCz9sm625Zd 4L4DGZ9PWYdKeWGMVLQORPsdhjsk77Pho3lxKAEZhJEQ0VGcvkHW2UQfwwQqdnIS4KvwdvK+e8rqD 0c6JkAEztpBdwCrXBhV5kizDU4WZDrAVBb0TYpyt7s3Ik2viFezCH+TI+LoaDudXIur0oQRD3qIzs /ZZMnka7/IP7403F5ucPr1xe1DiHxeEnvnxEJxJm8+QQvkWs1HDYc0/VD5GiTVMMI0KluV+1iKgsK D0eUXHfQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v9Djk-00000003H1b-3lif; Thu, 16 Oct 2025 02:29:04 +0000 Received: from smtpbgsg2.qq.com ([54.254.200.128]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v9Djf-00000003Gmz-403C; Thu, 16 Oct 2025 02:29:01 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1760581688; bh=YHT4Mxhe+zSodIVHd2qzlGnysBWHBxMufel41tGudBs=; h=From:To:Subject:Date:Message-Id; b=t1uSJlCh6BKui0tSWCB4a5j/1fjlPSegptuGjd0kHLT4U15hlYxGxPZFuIKlp+phR AK0ukJLrBUvej52ujlnMIjCyQwjQyezqBVCBELYgRgdzCYn8VSEbRe7bqUa1xXc1vX iP5p1RZCoHof+7iUyYKTtjzmW4BpF3iEQ88QrHT4= X-QQ-mid: zesmtpgz1t1760581686t5a2ab742 X-QQ-Originating-IP: Br9MCe7LW7Ki5BF9qcSTZOmwdKejc+6aFdxKCmwAYcg= Received: from DESKTOP-8BT1A2O.localdomain ( [58.22.7.114]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 16 Oct 2025 10:28:04 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 18423012065782556951 From: Chaoyi Chen To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Kishon Vijay Abraham I , Heiko Stuebner , Sandy Huang , Andy Yan , Yubing Zhang , Frank Wang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Amit Sunil Dhamne , Heikki Krogerus , Greg Kroah-Hartman , Chaoyi Chen , Dragan Simic , Johan Jonker , Diederik de Haas , Dmitry Baryshkov , Peter Robinson Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org Subject: [PATCH v6 2/8] dt-bindings: phy: rockchip: rk3399-typec-phy: Support mode-switch Date: Thu, 16 Oct 2025 10:27:35 +0800 Message-Id: <20251016022741.91-3-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251016022741.91-1-kernel@airkyi.com> References: <20251016022741.91-1-kernel@airkyi.com> X-QQ-SENDSIZE: 520 Feedback-ID: zesmtpgz:airkyi.com:qybglogicsvrsz:qybglogicsvrsz4a-0 X-QQ-XMAILINFO: M8JnMGwRo1mQ6Zj1L8Z6+mML7Wre/rZNvq1Xkso/uoNZaDSQWwnLivVp A+46evxX661PFbgRkgBG35BaRv+OsTycJGrK/XtDbf2W5BeK+8/qyEEMBWUS2PHSOx41u3f duzduiejfnTE5tWzxHQpUGy7Hxck/oJQV+670iO4d5W+B4z7zgGXnKCvDiSPY+tDdR6HrRB Jg9Z8cumIN4q34tCs3AxZeu1meCN5QvVexDlN/DE+MLw6VI7OGqpwchlZ0ledt8sHs1r5eX yM+dVIwFLMISJ2r3IjnYTvk5BjeEYIUr/SMqh5pibrs4kTg/UjYqNoTQzM34xvf3+fZNmPX Qnmc7zEDe+uazzL1Rno+NI+O+j0jXyvZr1sLf7Dfl/9f1xZHkGdHirNPq9YHIPpO1Ifomws DNjnz5l1yvoPGQtW/F1xZwFP2vPVBByz960r/0jzWyBENNitx3C0m9yLn69BKBLDwiLX4O6 4e9p205nuDc+DyLZlAu4zT5s282S4HGG7M2B/yui+ZYFof0ZsDoSWRaTQknJWZp5PVAYndV MoAnUtjh/iwAohKJ5pIo+NRMnuRt2KWC/FdC0qgF31cSufzOcAAzmgdXQ0RC6Y4oMNMPmlp 5YnUAqIqursnVf8/dRJ9mPd633qprdQze1CQlEVyb94FWUIFkZ73BSf3qz2eohvhNwVTXcQ boEZ7E58eutpgod6566gUzNQ9QY8iCr2nfpxVWMRUdMhIj6dVphGagFfzvjArLnNqBSYpuR 8//OJlT1tuib9Mzp2KbAcoJ7MMCPj8YOWbuzgQE+mU7C6ihw54fqWSPQYpOOMQFl7pr+P5U ZLopI2A16U0O4kswAWoqAVPPBkHzZbbS2Qrt9Sgp8xrx8yNXnrAtzGyj8UyC16GFEHNPpwA QbwozaMzZqkzauksWuEUU+D7EhSalcvzWNGSDaGskRCgVgtDV92n1y+FLY18vt+1ZPVqe0t 0g5HOEAHN+x/1SFC4h7NazWB88P//jv2Dfv+M4cOcwO2NYuxYpwP0XySfuZFfh708FIK0Zt wQ0CSH4Q== X-QQ-XMRINFO: OWPUhxQsoeAVDbp3OJHYyFg= X-QQ-RECHKSPAM: 0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251015_192900_374416_6CB41C2A X-CRM114-Status: UNSURE ( 9.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Chaoyi Chen The RK3399 SoC integrates two USB/DP combo PHYs, each of which supports software-configurable pin mapping and DisplayPort lane assignment. These capabilities enable the PHY itself to handle both mode switching and orientation switching, based on the Type-C plug orientation and USB PD negotiation results. While an external Type-C controller is still required to detect cable attachment and report USB PD events, the actual mode and orientation switching is performed internally by the PHY through software configuration. This allows the PHY to act as a Type-C multiplexer for both data role and DP altmode configuration. To reflect this hardware design, this patch introduces a new "mode-switch" property for the dp-port node in the device tree bindings. This property indicates that the connected PHY is capable of handling Type-C mode switching itself. Signed-off-by: Chaoyi Chen Acked-by: Krzysztof Kozlowski --- (no changes since v5) Changes in v4: - Remove "|" in description. Changes in v3: - Add more descriptions to clarify the role of the PHY in switching. Changes in v2: - Reuse dp-port/usb3-port in rk3399-typec-phy binding. .../devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml b/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml index 91c011f68cd0..83ebcde096ea 100644 --- a/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml +++ b/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml @@ -51,6 +51,12 @@ properties: '#phy-cells': const: 0 + mode-switch: + description: + Indicates the PHY can handle altmode switching. In this case, + requires an external USB Type-C controller to report USB PD message. + type: boolean + port: $ref: /schemas/graph.yaml#/properties/port description: Connection to USB Type-C connector -- 2.49.0