[PATCHv2 0/2] usb: bcma: control VBUS via a regulator

[Rosen Penev]

bcma-hcd currently drives the USB power line by grabbing the
undocumented "vcc-gpio" property from the controller node and poking
it through gpiolib. Besides relying on a non-standard binding, this
cannot work on boards such as the NETGEAR R7000 and R8000 where one
chipcommon GPIO powers both the USB2 and USB3 cores: the two
controllers each request that GPIO exclusively, so the second one
fails with -EBUSY and its port stays dead.

Instead, switch the driver to the standard regulator interface and
express the power rails as regulator-fixed nodes bound to the
chipcommon GPIOs. The regulator core reference-counts enable/disable
requests, letting both controllers share one GPIO without conflicts.

v2: fixup dts and keep GPIO working.

Rosen Penev (2):
  usb: bcma: add regulator support
  ARM: dts: broadcom: model USB VBUS power with regulator-fixed

 .../broadcom/bcm4708-buffalo-wxr-1750dhp.dts  | 12 ++++-
 .../bcm4708-buffalo-wzr-1166dhp-common.dtsi   | 23 +++++++-
 .../broadcom/bcm4708-buffalo-wzr-1750dhp.dts  | 23 +++++++-
 .../broadcom/bcm4708-linksys-ea6300-v1.dts    | 12 ++++-
 .../broadcom/bcm4708-linksys-ea6500-v2.dts    | 12 ++++-
 .../dts/broadcom/bcm4708-netgear-r6250.dts    | 12 ++++-
 .../dts/broadcom/bcm4708-netgear-r6300-v2.dts | 12 ++++-
 .../dts/broadcom/bcm47081-luxul-xwr-1200.dts  | 12 ++++-
 .../broadcom/bcm47081-tplink-archer-c5-v2.dts | 12 ++++-
 .../dts/broadcom/bcm4709-asus-rt-ac3200.dts   | 12 ++++-
 .../broadcom/bcm4709-buffalo-wxr-1900dhp.dts  | 13 ++++-
 .../dts/broadcom/bcm4709-linksys-ea9200.dts   | 24 ++++++++-
 .../dts/broadcom/bcm4709-netgear-r7000.dts    | 14 ++++-
 .../dts/broadcom/bcm4709-netgear-r8000.dts    | 14 ++++-
 .../broadcom/bcm4709-tplink-archer-c9-v1.dts  | 24 ++++++++-
 .../dts/broadcom/bcm47094-asus-rt-ac3100.dtsi | 12 ++++-
 .../dts/broadcom/bcm47094-asus-rt-ac5300.dts  | 12 ++++-
 .../dts/broadcom/bcm47094-dlink-dir-885l.dts  | 12 ++++-
 .../dts/broadcom/bcm47094-dlink-dir-890l.dts  | 24 ++++++++-
 .../broadcom/bcm47094-linksys-panamera.dts    | 24 ++++++++-
 .../dts/broadcom/bcm47094-luxul-abr-4500.dts  | 12 ++++-
 .../dts/broadcom/bcm47094-luxul-xbr-4500.dts  | 12 ++++-
 .../dts/broadcom/bcm47094-luxul-xwr-3100.dts  | 12 ++++-
 .../broadcom/bcm47094-luxul-xwr-3150-v1.dts   | 12 ++++-
 .../arm/boot/dts/broadcom/bcm947189acdbmr.dts | 12 ++++-
 drivers/usb/host/bcma-hcd.c                   | 54 +++++++++++++++----
 26 files changed, 384 insertions(+), 45 deletions(-)

-- 
2.55.0