linux-kernel - [PATCH v2 0/2] Add driver support for Eswin eic7700 SoC USB controller

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Message-ID: <20250730073953.1623-1-zhangsenchuan@eswincomputing.com>
Date: Wed, 30 Jul 2025 15:39:53 +0800
From: zhangsenchuan@...incomputing.com
To: gregkh@...uxfoundation.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Thinh.Nguyen@...opsys.com,
	p.zabel@...gutronix.de
Cc: ningyu@...incomputing.com,
	linmin@...incomputing.com,
	yangwei1@...incomputing.com,
	pinkesh.vaghela@...fochips.com,
	Senchuan Zhang <zhangsenchuan@...incomputing.com>
Subject: [PATCH v2 0/2] Add driver support for Eswin eic7700 SoC USB controller

From: Senchuan Zhang <zhangsenchuan@...incomputing.com>

Changes in v2:
- Updates: eswin,eic7700-usb.yaml
  - Drop the redundant descriptions.
  - Supplement the constraints of resets.
  - Replace "eswin,hsp_sp_csr" with "eswin,hsp-sp-csr"
    and add items description.
  - Drop numa-node-id, This is not necessary.
  - Add patternProperties and match the rules defined
    in the "snps,dwc3.yaml" file.
  - Add "#address-cells" "#size-cells".
  - Update the space indentation, remove the redundant labels,
    and sort the attributes according to the DTS encoding style.
  - Drop the "status = "disabled" attribute.
  - Update the common usb node names and fold the child
    nodes into the parent nodes.
  - The warning detected by the robot has been resolved.
- Link to V1: https://lore.kernel.org/lkml/20250516095237.1516-1-zhangsenchuan@eswincomputing.com/

- Updates: dwc3-eic7700.c
  - Remove dwc3_mode_show dwc3_mode_store dwc3_eswin_get_extcon_dev,
    dwc3_eswin_device_notifier and dwc3_eswin_host_notifier, usb role
    detection and switching are not supported.
  - Remove the hub-rst attribute, remove the dwc3_hub_rst_show and
    dwc3_hub_rst_store functions, this feature is not supported.
  - Use syscon_regmap_lookup_by_phandle_args instead of the
    syscon_regmap_lookup_by_phandle function.
  - Use dev_err_probe in probe function.
  - Drop mutex_lock, which is not required.
  - Remove clk_prepare_enable and of_clk_get, and manage multiple
    clocks using devm_clk_bulk_get_all_enabled.
  - Remove the device_init_wakeup related functions, which were
    used incorrectly.
  - Remove MODULE_ALIAS, which is used incorrectly.
  - The warning detected by the robot has been resolved.
- Link to V1: https://lore.kernel.org/lkml/20250516095237.1516-1-zhangsenchuan@eswincomputing.com/

Senchuan Zhang (2):
  dt-bindings: usb: Add Eswin EIC7700 USB controller
  usb: dwc3: eic7700: Add EIC7700 USB driver

 .../bindings/usb/eswin,eic7700-usb.yaml       | 123 +++++++++++
 drivers/usb/dwc3/Kconfig                      |  11 +
 drivers/usb/dwc3/Makefile                     |   1 +
 drivers/usb/dwc3/dwc3-eic7700.c               | 207 ++++++++++++++++++
 4 files changed, 342 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml
 create mode 100644 drivers/usb/dwc3/dwc3-eic7700.c

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2.25.1