diff options
| author | Wu Liang feng <wulf@rock-chips.com> | 2016-07-26 20:05:09 +0800 |
|---|---|---|
| committer | Gerrit Code Review <gerrit@rock-chips.com> | 2016-07-27 20:16:08 +0800 |
| commit | 5b9c454fb71a891f19fb9bd3178e742609cb9305 (patch) | |
| tree | 7e63a821a8bec47ed242c6b5e9a82a480810eaa2 /Documentation | |
| parent | 6b66590b06663371d26f534337144791aef43db9 (diff) | |
phy: rockchip-inno-usb2: make utmi vbus configurable in DT
Rockchip USB2 phy provides utmi_avalid and utmi_bvalid for
user to check UTMI vbus status. Generally, both of them can
reflect the vbus status correctly, and the utmi_bvalid has
higher sensitivity, so we select the utmi_bvalid to get vbus
status by default.
But some special SoCs may not provide utmi_bvalid, so we
need to select utmi_avalid in this case.
Change-Id: I0d47c2237f852cb67ebd82fe2673b2bd2e6ccce6
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt index 3c29c77a7018..1155aaa853f6 100644 --- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt @@ -29,6 +29,9 @@ Required properties (port (child) node): Optional properties: - phy-supply : phandle to a regulator that provides power to VBUS. See ./phy-bindings.txt for details. + - rockchip,utmi-avalid : when set, the usb2 phy will use avalid + status bit to get vbus status. If not, it will use + bvalid status bit to get vbus status by default. Example: |