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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2017-02-21 11:59:47 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-03-17 05:24:48 +0100
commit5095cb89c62acc78b4cfaeb9a4072979d010510a (patch)
tree1ce6f59d08f8cd1e4fff9f67f93e6f931aff4233 /Documentation
parentusbip: Fix implicit fallthrough warning (diff)
downloadlinux-5095cb89c62acc78b4cfaeb9a4072979d010510a.tar.xz
linux-5095cb89c62acc78b4cfaeb9a4072979d010510a.zip
usb: of: add functions to bind a companion controller
EHCI controllers will have a companion controller. However, on platform bus, there was difficult to bind them in previous code. So, this patch adds helper functions to bind them using a "companion" property. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/usb/generic.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/generic.txt b/Documentation/devicetree/bindings/usb/generic.txt
index bfadeb1c3bab..0a74ab8dfdc2 100644
--- a/Documentation/devicetree/bindings/usb/generic.txt
+++ b/Documentation/devicetree/bindings/usb/generic.txt
@@ -22,6 +22,7 @@ Optional properties:
property is used if any real OTG features(HNP/SRP/ADP)
is enabled, if ADP is required, otg-rev should be
0x0200 or above.
+ - companion: phandle of a companion
- hnp-disable: tells OTG controllers we want to disable OTG HNP, normally HNP
is the basic function of real OTG except you want it
to be a srp-capable only B device.