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[0/3] External VBUS port power handling for onboard USB devices

Message ID 20240807-b4-v6-10-topic-usb-onboard-dev-v1-0-f33ce21353c9@pengutronix.de (mailing list archive)
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Series External VBUS port power handling for onboard USB devices | expand

Message

Marco Felsch Aug. 7, 2024, 2:36 p.m. UTC 
Hi,

some PCB designs don't connect the USB hub port power line to the
dedicated hub port power pin. Instead they use a host controllable GPIO
line to enable the VBUS power.

This patchset addresses this use-case by hooking into the
usb_clear/set_port_feature() function and call the usb-onboard-dev hook
if available. The usb-onboard-dev driver is taking care of the rest.

Regards,
  Marco

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
Marco Felsch (3):
      usb: hub: add infrastructure to pass onboard_dev port features
      dt-bindings: usb: microchip,usb2514: add support for port vbus-supply
      usb: misc: onboard_dev: add ext-vbus-supply handling

 .../devicetree/bindings/usb/microchip,usb2514.yaml |  7 ++
 drivers/usb/core/hub.c                             | 22 ++++++-
 drivers/usb/misc/onboard_usb_dev.c                 | 76 ++++++++++++++++++++++
 drivers/usb/misc/onboard_usb_dev.h                 |  2 +
 include/linux/usb/onboard_dev.h                    |  6 ++
 5 files changed, 111 insertions(+), 2 deletions(-)
---
base-commit: 0c3836482481200ead7b416ca80c68a29cfdaabd
change-id: 20240807-b4-v6-10-topic-usb-onboard-dev-49040782d2f9

Best regards,