linux-kernel - [PATCH v2 0/3] add DWC3 i.MX driver based on flatten devicetree

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Message-Id: <20260204-add-flatten-dts-based-dwc3-imx-driver-v2-0-d2c9b5a58c01@nxp.com>
Date: Wed, 04 Feb 2026 19:06:15 +0800
From: Xu Yang <xu.yang_2@....com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Frank Li <frank.li@....com>, 
 Li Jun <jun.li@....com>, Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org, 
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Xu Yang <xu.yang_2@....com>
Subject: [PATCH v2 0/3] add DWC3 i.MX driver based on flatten devicetree

The i.MX USB glue and DWC3 core are closely coupled. Describe the i.MX
USB block in a single block will bring more benefits than a parent-
child relation.

Now DWC3 USB common driver already support to do more key jobs in glue
driver, such as power management and core initialization. Now let's
make a step and add a flatten devicetree based driver.

The first one add a new "fsl,imx-dwc3" binding to describe all i.MX
related USB controller.

Then, to support wakeup capability even when controller experienced
power lost, a fix patch is added to make controller work after system
resume back.

---
Changes in v2:
- reorder compatible property
- rename may_lose_power to needs_full_reinit
- remove Frank review by tag due to some changes
- fix code style in dwc3-imx.c
- disable wakeup irq when register interrupt by default
- remove runtime PM operations in dwc3_imx_remove()
- Link to v1: https://lore.kernel.org/r/20260202-add-flatten-dts-based-dwc3-imx-driver-v1-0-c44a5e919380@nxp.com

---
Xu Yang (3):
      dt-bindings: usb: introduce fsl,imx-dwc3
      usb: dwc3: add needs_full_reinit flag
      usb: dwc3: introduce flatten model driver of i.MX Soc

 .../devicetree/bindings/usb/fsl,imx-dwc3.yaml      | 131 +++++++
 .../devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml   |  13 +
 drivers/usb/dwc3/Kconfig                           |  12 +
 drivers/usb/dwc3/Makefile                          |   1 +
 drivers/usb/dwc3/core.c                            |   9 +-
 drivers/usb/dwc3/core.h                            |   3 +
 drivers/usb/dwc3/dwc3-imx.c                        | 430 +++++++++++++++++++++
 drivers/usb/dwc3/glue.h                            |   3 +
 8 files changed, 600 insertions(+), 2 deletions(-)
---
base-commit: 0a06917432a762d6233f88963c0b53e48dbac6b4
change-id: 20260202-add-flatten-dts-based-dwc3-imx-driver-96e4a4af9570

Best regards,
-- 
Xu Yang <xu.yang_2@....com>