dt-bindings: usb: generic-ehci: Document power-domains property
authorGeert Uytterhoeven <geert+renesas@glider.be>
Thu, 26 Mar 2020 16:38:05 +0000 (17:38 +0100)
committerRob Herring <robh@kernel.org>
Tue, 14 Apr 2020 12:59:54 +0000 (07:59 -0500)
commitf98d7c3abca05471706c32ac47ec42fb4c71264d
tree9dd8b944c84c26bf793bcbe3fdee8ff40599d589
parent8f3d9f354286745c751374f5f1fcafee6b3f3136
dt-bindings: usb: generic-ehci: Document power-domains property

It is quite common for a generic EHCI block to be embedded in an SoC in
its own power domain.  Hence allow the DTS writer to describe the
controller's position in the power hierarchy, by documenting the
optional presence of a "power-domains" property.

This gets rid of "make dtbs_check" warnings like:

    arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m.dt.yaml: usb@ee080100: 'power-domains' does not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Documentation/devicetree/bindings/usb/generic-ehci.yaml