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Sun, 6 Sep 2026 03:24:33 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 222.71.101.198) smtp.mailfrom=cixtech.com; dkim=none (message not signed) header.d=none;dmarc=bestguesspass action=none header.from=cixtech.com; 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 OSA0EPF000000C6.mail.protection.outlook.com (10.167.240.52) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.406.5 via Frontend Transport; Sun, 6 Sep 2026 03:24:33 +0000 Received: from hongliang-System-Product-Name (unknown [172.20.64.180]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id 05D28409210C; Sun, 6 Sep 2026 11:24:31 +0800 (CST) From: Hongliang Yang To: peter.chen@kernel.org, vkoul@kernel.org, neil.armstrong@linaro.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: p.zabel@pengutronix.de, gregkh@linuxfoundation.org, krzk@kernel.org Subject: [PATCH v4 0/3] Add CIX Sky1 USB3 PHY support Date: Sun, 6 Sep 2026 11:24:28 +0800 Message-ID: <20260906032431.470744-1-hongliang.yang@cixtech.com> X-Mailer: git-send-email 2.54.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: OSA0EPF000000C6:EE_|SEZPR06MB5341:EE_ Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: 88844792-68b2-4d5d-8692-08df0bc65f1a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700016|1800799024|23010399003|376014|7416014|10067099003|56012099006|18002099003|921020; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: zrV9AlU9VA/rL2wVOACxoDII48DIP12hMpBrvXP1h1INYME6uToHnr3PvHOB/Md9cuKeBRhpbu4+47YAH9ZNESmp/4tJq+cf7dio2voiZFEWwO/XCvLd4YyZ0CzTigkpjeSuDcmKCtukbFRnMrla5PXLEb25xl1+45Oqp0QShCbUEq0yPp4H6vawRegVkqfz1Nvc5UNgxwq0wuMdPgAGOkbDmGVyGFBqYbjX7qyhcsSl+7Ip+B/hp302quHAprTwQSyI+TEOQW3yC0tLJ7H1wODygGAFgdW0+m8KsXGXbqOG1YV0jotSXsr4kgbk8lT/q5SErpin8lTSoWMwMRjutzrAbSOu79iNvXs38LaXguXOQoZFKcMgiWLIrHaAsKwwehN+3/v/OfdMvi+dped2B4OfKFPAkcAki+lJDajIQM/uM+mIUauvbypnr64IHCot X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Sep 2026 03:24:33.2834 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 88844792-68b2-4d5d-8692-08df0bc65f1a 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: OSA0EPF000000C6.apcprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SEZPR06MB5341 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260905_202444_965571_F38765F5 X-CRM114-Status: GOOD ( 12.14 ) 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 This series adds support for the multi-port USB3 PHY found on the CIX Sky1 SoC: the devicetree binding, the PHY driver, and the device tree node covering the PHY block that serves the USB4 and USB5 controllers. This is the first of two series; the USBSSP controller (Cadence DRD glue) series that consumes this PHY follows separately and depends on this one. Changes in v4: - Split the combined USB series into two: this PHY series and a separate USBSSP controller series that depends on it. USB3 PHY driver: - Assert the hardware resets before registering the PHY provider, so a consumer cannot race with the probe-time assertion. - Disable the clocks in LIFO order (ref before apb) in phy_exit(). - Reorder the error unroll path of phy_init() to assert the resets before disabling the clocks, matching the teardown sequence, and fix the goto targets so clocks that were never enabled are not disabled. - Check fwnode_get_name() for NULL and only match "usb-port@" child nodes exactly, instead of any name with a "usb-port" or "USB" prefix. Hongliang Yang (3): dt-bindings: phy: Add CIX Sky1 USB3 PHY phy: cix: Add CIX Sky1 USB3 PHY driver arm64: dts: cix: Add USB3 PHY node for Sky1 .../bindings/phy/cix,sky1-usb3-phy.yaml | 107 +++++ arch/arm64/boot/dts/cix/sky1-orion-o6.dts | 12 + arch/arm64/boot/dts/cix/sky1.dtsi | 31 ++ drivers/phy/Kconfig | 1 + drivers/phy/Makefile | 1 + drivers/phy/cix/Kconfig | 20 + drivers/phy/cix/Makefile | 6 + drivers/phy/cix/phy-cix-usb3.c | 413 ++++++++++++++++++ drivers/phy/cix/phy-cix-usbdp.h | 289 ++++++++++++ 9 files changed, 880 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/cix,sky1-usb3-phy.yaml create mode 100644 drivers/phy/cix/Kconfig create mode 100644 drivers/phy/cix/Makefile create mode 100644 drivers/phy/cix/phy-cix-usb3.c create mode 100644 drivers/phy/cix/phy-cix-usbdp.h -- 2.54.0