[v6,0/3] usb: ChipIdea: add Nuvoton NPCM UDC support

Message

Tomer Maimon Oct. 12, 2023, 11 p.m. UTC

This patch set add USB device controller for the NPCM Baseboard
Management Controllers (BMC).

NPCM UDC driver is a part of the USB ChipIdea driver.

Adding CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS flag to modify the vbus_active
parameter to active in case the ChipIdea USB IP role is device-only and
there is no otgsc register.

BMC NPCM7XX and BMC NPCM8XX has ten identical NPCM UDC modules,

The NPCM UDC were tested on NPCM845 evaluation board.

Addressed comments from:
 - Krzysztof Kozlowski : https://www.spinics.net/lists/devicetree/msg639032.html

Changes since version 5:
 - Remove unnecessary npcm845-udc compatible.

Changes since version 4:
 - Modify npcm845-udc compatible.

Changes since version 3:
 - Add Acked-by Peter Chen.
 
Changes since version 2:
 - Use dev_err_probe.
 - Remove MODULE_ALIAS.

Changes since version 1:
 - Add SoC specific compatible.
 - Remove USB phy mux property from dt-binding, will be handled differently.
 - Add CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS commit to this patch set.

Tomer Maimon (3):
  usb: chipidea: add CI_HDRC_FORCE_VBUS_ACTIVE_ALWAYS flag
  dt-bindings: usb: ci-hdrc-usb2: add npcm750 and npcm845 compatible
  usb: chipidea: Add support for NPCM

 .../devicetree/bindings/usb/ci-hdrc-usb2.yaml |   6 +
 drivers/usb/chipidea/Kconfig                  |   4 +
 drivers/usb/chipidea/Makefile                 |   1 +
 drivers/usb/chipidea/ci_hdrc_npcm.c           | 114 ++++++++++++++++++
 drivers/usb/chipidea/otg.c                    |   5 +-
 include/linux/usb/chipidea.h                  |   1 +
 6 files changed, 130 insertions(+), 1 deletion(-)
 create mode 100644 drivers/usb/chipidea/ci_hdrc_npcm.c