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Received-SPF: Pass (protection.outlook.com: domain of cixtech.com designates 222.71.101.198 as permitted sender) receiver=protection.outlook.com; client-ip=222.71.101.198; helo=smtprelay.cixcomputing.com; pr=C Received: from smtprelay.cixcomputing.com (222.71.101.198) by SG2PEPF000B66D0.mail.protection.outlook.com (10.167.240.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.592.5 via Frontend Transport; Mon, 2 Nov 2026 08:21:13 +0000 Received: from gary-System-Product-Name (unknown [172.16.64.55]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id 7B73A4102B47; Mon, 2 Nov 2026 16:21:12 +0800 (CST) From: Gary Yang To: Vinod Koul , Neil Armstrong , Manivannan Sadhasivam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Fugang Duan Cc: CIX Linux Kernel Upstream Group , linux-arm-kernel@lists.infradead.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Gary Yang Subject: [PATCH 0/3] phy: cix: add Sky1 USB/DP combo PHY Date: Mon, 2 Nov 2026 16:21:09 +0800 Message-ID: <20261102082112.2306326-1-gary.yang@cixtech.com> X-Mailer: git-send-email 2.50.1 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG2PEPF000B66D0:EE_|SE1PPFF9F12DF7E:EE_ Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: bd584ff3-0810-4d2f-dd56-08df38ba423a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|82310400026|36860700016|7416014|376014|23010399003|6133799003|18002099003|10067099003|56012099006|261009223027099003|261022105027099003|261021121427099003|261022075727099003|261028144727099003|261026121527099003|261026140227099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: V3sgUcPR3lExce0c2kwZndBtI08ZoLL5ffDafKCO0g1pJ4nx4LEUu86/iZQ3xJckINLqZ5U6gVU+VOam6dfutAwSs+6Pwj+qMWKdC3M7BSwF/FAE0K+JKAsNJ55+YJ8eO4AESTBkJh/4xpsM7l6n4gMUwp7wzPhdvKV6y9YTfzMq2Qy6Nq7sMIbO4ZIGYGYno6nQDG6A/bx1SbP3Tw1aS531ebqlfWxygGF/KUYXzKcw0GQFf1VT6BWmjNbSqxtOkx+EyRlVmzbPUJz9iHhvQfr7wwIiPvPKUYh8uaUzMGPYmVosIQbmY/O1UC+w6/+lInCQx/UpiV3ery1CokXZxLTzNWdBxZkfOnGtks+BwMyFlh4Obbz2mHj1IMUB0BNEdiSTKhCHirPzImphzbFlbEPBgfWqaBzdShxWjS6j9WCKE3y9zfNSXsJSweqysfAh X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Nov 2026 08:21:13.4292 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bd584ff3-0810-4d2f-dd56-08df38ba423a X-MS-Exchange-CrossTenant-Id: 0409f77a-e53d-4d23-943e-ccade7cb4811 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=0409f77a-e53d-4d23-943e-ccade7cb4811;Ip=[222.71.101.198];Helo=[smtprelay.cixcomputing.com] X-MS-Exchange-CrossTenant-AuthSource: SG2PEPF000B66D0.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SE1PPFF9F12DF7E This series adds support for the USB/DP combo PHY found on the CIX Sky1 SoC. Each PHY instance provides one SuperSpeedPlus USB lane and one DisplayPort lane of a USB Type-C port, with plug orientation and USB/DP lane muxing handled through the S5 system controller. The PHY registers a Type-C switch and mux so that the connector driver owns orientation and mode decisions, and exposes the USB and DP lanes as separate child PHYs so that the USB and DP controllers can bind to them independently. Patch 1 documents the binding, patch 2 adds the driver, and patch 3 adds the SoC nodes and enables them on the Radxa Orion O6. The driver has been built for arm64 with the PHY enabled both built-in and as a module. dt_binding_check, dtbs_check and checkpatch --strict pass. Signed-off-by: Gary Yang Gary Yang (3): dt-bindings: phy: add CIX Sky1 USB/DP combo PHY phy: cix: add Sky1 USB/DP combo PHY driver arm64: dts: cix: add Sky1 USB/DP combo PHY .../bindings/phy/cix,sky1-usbdp-phy.yaml | 150 ++ MAINTAINERS | 2 + arch/arm64/boot/dts/cix/sky1-orion-o6.dts | 28 + arch/arm64/boot/dts/cix/sky1.dtsi | 96 ++ drivers/phy/Kconfig | 1 + drivers/phy/Makefile | 1 + drivers/phy/cix/Kconfig | 22 + drivers/phy/cix/Makefile | 2 + drivers/phy/cix/phy-cix-usbdp.c | 1477 +++++++++++++++++ drivers/phy/cix/phy-cix-usbdp.h | 265 +++ 10 files changed, 2044 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/cix,sky1-usbdp-phy.yaml create mode 100644 drivers/phy/cix/Kconfig create mode 100644 drivers/phy/cix/Makefile create mode 100644 drivers/phy/cix/phy-cix-usbdp.c create mode 100644 drivers/phy/cix/phy-cix-usbdp.h -- 2.50.1