From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-185.mta0.migadu.com (out-185.mta0.migadu.com [91.218.175.185]) (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 33A3B326D60; Fri, 12 Sep 2025 16:54:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.185 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757696059; cv=none; b=Z2wJoHQqd5DYwFx7PrqINlzlWUJaZcZcykQ+LMycprSc7arIZWysD02syv0n6vcCPfVlXWCJ++VxeIE6QyyYTs/4o5nurLSW04kSIBYuscwunE7ZpBDWEKUBsKA/uSpSA8Avpc/+6D9p0/5/NNgiVR8GSaCYaZ0zc9a7SvzU4qQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757696059; c=relaxed/simple; bh=bXIVsKAF399XK4av2bzVOpUyU8+8nZD1CF+E2epBbbw=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=BHxiNkulMpJYsUeGrUZN7tZfv1uSJ6yXM1jn7kuaUeTgaNqPvI0n//Z8XSWtmiaoQkvSVqbyFfQ9QMx6FQ/zNAhieDz/UfqXavPbOFYSuNm6Auwcdu++PEM0iujZRxCGkKT1BujdLGLEi+72+P+InAh2FvtMZc9DU3bNwQ92Hd0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=aHkQJStw; arc=none smtp.client-ip=91.218.175.185 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="aHkQJStw" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1757696044; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=XB+kXwXNKwlFMZlruLnoK7GtoQ6rz9ZNuPsx179Ax3g=; b=aHkQJStwok7tY0hD5yJCQSPb0JwMJeXd40YhaFlpeB64BuaVa2zFYOaaI6ok6bKb/QCr85 obNCTawPApDE6WUNM48gq0PrlqESlxWd99ZTI8de8Gp9iqv5PtetKtWYfOfr1Lcf9uldRX kzXBJfWk5AFlDYJz4lxsQpUPEIVHfGc= From: Ze Huang Subject: [PATCH v8 0/2] Add SpacemiT K1 USB3.0 host controller support Date: Sat, 13 Sep 2025 00:53:46 +0800 Message-Id: <20250913-dwc3_generic-v8-0-b50f81f05f95@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIABpQxGgC/23OwW7DIAwG4FeJOI+KGIGhp73HNFWJcVukNekgp Z2qvPtYeomiHX/L328/ReYUOYt98xSJS8xxHGpwb42gczecWMZQswAFRqEyMtxJH048VEbSBQX OeAQgLSq5Jj7Gx1L38fnKib9vtXV6DUXfZZY0Xi5x2jfF7lqUiVrxt3yOeRrTz/JKMcv2/1eLk Ur60JPR3Bkd4P0rDrfHLnBZiopd4RY22FZM5BA1EnlttxhXGPwGY8WG0Ld93zmwxzWe5/kXhYm HME8BAAA= X-Change-ID: 20250705-dwc3_generic-8d02859722c3 To: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Thinh Nguyen , Philipp Zabel Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, Ze Huang , Krzysztof Kozlowski X-Developer-Signature: v=1; a=ed25519-sha256; t=1757696039; l=4082; i=huang.ze@linux.dev; s=20250705; h=from:subject:message-id; bh=bXIVsKAF399XK4av2bzVOpUyU8+8nZD1CF+E2epBbbw=; b=4ASiPOoAk1nxtG2FXhpO+v7ra+o63UgD0fIQqlcQc2MrzhWqlSZITs7JmT9w4DL6O6vuyRNpM /SfbqKQqK0IDudFrStgMROcmugm7VVUVnYfxVmVuhmOCEm1D5E0aFxC X-Developer-Key: i=huang.ze@linux.dev; a=ed25519; pk=Kzc4PMu5PTo8eZZQ5xmTNL9jeXcQ9Wml0cs+vlQpBkg= X-Migadu-Flow: FLOW_OUT The USB 3.0 controller found in the SpacemiT K1 SoC[1] supports both USB3.0 Host and USB2.0 Dual-Role Device (DRD). This controller is compatible with DesignWare Core USB 3 (DWC3) driver. However, constraints in the `snps,dwc3` bindings limit the ability to describe hardware-specific features in a clean and maintainable way. While `dwc3-of-simple` still serves as a glue layer for many platforms, it requires a split device tree node structure, which is less desirable in newer platforms. To promote a transition toward a flattened `dwc` node structure, this series introduces `dwc3-generic-plat`, building upon prior efforts that exposed the DWC3 core driver [2]. The device tree support for SpacemiT K1 will be submitted separately when the associated PHY driver is ready. This series is based on 6.17-rc1 and has been tested on BananaPi development boards. Link: https://developer.spacemit.com/documentation?token=AjHDwrW78igAAEkiHracBI9HnTb [1] Link: https://lore.kernel.org/all/20250414-dwc3-refactor-v7-3-f015b358722d@oss.qualcomm.com [2] Signed-off-by: Ze Huang --- Changes in v8: - dt-bindings: remove the PCIe reset which will be managed by combo PHY driver. - driver: fix incorrect `dev_get_drvdata()` usage in PM ops, as `dwc3_core_probe()` overwrites the device's private data. - Link to v7: https://lore.kernel.org/r/20250729-dwc3_generic-v7-0-5c791bba826f@linux.dev Changes in v7: - dt-bindings: - add reset-names and reset-delay properties - add pcie0 entry in resets for combphy init - dwc3 generic plat driver: - drop clock cleanup and handle with devm_clk_bulk_get_all_enabled() - move devm reset action after successful de-assert - Link to v6: https://lore.kernel.org/r/20250712-dwc3_generic-v6-0-cc87737cc936@linux.dev Changes in v6: - replace SET_RUNTIME_PM_OPS/SET_SYSTEM_SLEEP_PM_OPS with RUNTIME_PM_OPS/SYSTEM_SLEEP_PM_OPS - Link to v5: https://lore.kernel.org/r/20250705-dwc3_generic-v5-0-9dbc53ea53d2@linux.dev Changes in v5: - drop DTS patch (will submit when PHY driver is ready) - drop interconnects and update resets property in dt-bindings - remove unnecessary __maybe_unused attribute and PM guards - switch to devres APIs for reset and clock management - Link to v4: https://lore.kernel.org/all/20250526-b4-k1-dwc3-v3-v4-0-63e4e525e5cb@whut.edu.cn/ Changes in v4: - dt-bindings spacemit,k1-dwc: - reorder properties - add properties of phys & phy-names - add usb hub nodes in example dt - add support for spacemit,k1-mbus - dwc3 generic plat driver: - rename dwc3-common.c to dwc3-generic-plat.c - use SYSTEM_SLEEP_PM_OPS macros and drop PM guards - dts: - reorder dts properties of usb dwc3 node - move "dr_mode" of dwc3 from dtsi to dts - Link to v3: https://lore.kernel.org/r/20250518-b4-k1-dwc3-v3-v3-0-7609c8baa2a6@whut.edu.cn Changes in v3: - introduce dwc3-common for generic dwc3 hardware - fix warnings in usb host dt-bindings - fix errors in dts - Link to v2: https://lore.kernel.org/r/20250428-b4-k1-dwc3-v2-v1-0-7cb061abd619@whut.edu.cn Changes in v2: - dt-bindings: - add missing 'maxItems' - remove 'status' property in exmaple - fold dwc3 node into parent - drop dwc3 glue driver and use snps,dwc3 driver directly - rename dts nodes and reorder properties to fit coding style - Link to v1: https://lore.kernel.org/all/20250407-b4-k1-usb3-v3-2-v1-0-bf0bcc41c9ba@whut.edu.cn --- Ze Huang (2): dt-bindings: usb: dwc3: add support for SpacemiT K1 usb: dwc3: add generic driver to support flattened .../devicetree/bindings/usb/spacemit,k1-dwc3.yaml | 121 +++++++++++++++ drivers/usb/dwc3/Kconfig | 11 ++ drivers/usb/dwc3/Makefile | 1 + drivers/usb/dwc3/dwc3-generic-plat.c | 166 +++++++++++++++++++++ 4 files changed, 299 insertions(+) --- base-commit: 062b3e4a1f880f104a8d4b90b767788786aa7b78 change-id: 20250705-dwc3_generic-8d02859722c3 Best regards, -- Ze Huang