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 "nxp,imx-dwc3.yaml" 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 v3:
- rename file name as nxp,imx-dwc3.yaml
- rename compatible as nxp,imx*-dwc3
- remove status property in example node
- modify commit message
- Link to v2: https://lore.kernel.org/r/20260204-add-flatten-dts-based-dwc3-imx-driver-v2-0-d2c9b5a58c01@nxp.com
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 nxp,imx-dwc3
usb: dwc3: add needs_full_reinit flag
usb: dwc3: introduce flatten model driver of i.MX Soc
.../devicetree/bindings/usb/fsl,imx8mp-dwc3.yaml | 2 +
.../devicetree/bindings/usb/nxp,imx-dwc3.yaml | 123 ++++++
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 | 429 +++++++++++++++++++++
drivers/usb/dwc3/glue.h | 3 +
8 files changed, 580 insertions(+), 2 deletions(-)
---
base-commit: 0a06917432a762d6233f88963c0b53e48dbac6b4
change-id: 20260202-add-flatten-dts-based-dwc3-imx-driver-96e4a4af9570
Best regards,
--
Xu Yang <xu.yang_2@nxp.com>