[v2,0/4] usb: phy: generic: Support enabling/disabling VBUS

Message

Sean Anderson April 25, 2022, 5:14 p.m. UTC

The generic USB phy has had VBUS-related code for a long time, but it
has always been broken, since the regulator was never gotten from the
device tree. However, the support itself seems not very useful, since
e.g.  usb_phy_vbus_on/off has no users and usb_phy_set_power is only
used by gadgets to make sure they don't draw too much current. Instead,
use the VBUS regulator to implement otg_set_vbus, which is called from
several drivers. This results in a change in semantics of VBUS, but
since support was always broken I don't think this will have any affect.

This got no (non-automated) feedback for an entire release cycle. I'm
sending v2 with a wider CC list so hopefully someone can review it in
time for 5.19.

Changes in v2:
- Fix dt_binding_check errors

Sean Anderson (4):
  dt-bindings: usb: usb-nop-xceiv: Repurpose vbus-regulator
  usb: phy: generic: Get the vbus supply
  usb: phy: generic: Implement otg->set_vbus
  usb: phy: generic: Disable vbus on removal

 .../bindings/usb/usb-nop-xceiv.yaml           |  9 ++-
 drivers/usb/phy/phy-generic.c                 | 55 +++++++++----------
 2 files changed, 31 insertions(+), 33 deletions(-)