summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt
index ba797d3e6326..c9205fbf26e2 100644
--- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt
+++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-usb-phy.txt
@@ -20,6 +20,12 @@ Required properties :
Present if phy_type == utmi.
- ulpi-link: The clock Tegra provides to the ULPI PHY (cdev2).
Present if phy_type == ulpi, and ULPI link mode is in use.
+ - resets : Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+ - reset-names : Must include the following entries:
+ - usb: The PHY's own reset signal.
+ - utmi-pads: The reset of the PHY containing the chip-wide UTMI pad control
+ registers. Required even if phy_type == ulpi.
Required properties for phy_type == ulpi:
- nvidia,phy-reset-gpio : The GPIO used to reset the PHY.
@@ -56,6 +62,8 @@ Optional properties:
host means this is a host controller
peripheral means it is device controller
otg means it can operate as either ("on the go")
+ - nvidia,has-utmi-pad-registers : boolean indicates whether this controller
+ contains the UTMI pad control registers common to all USB controllers.
VBUS control (required for dr_mode == otg, optional for dr_mode == host):
- vbus-supply: regulator for VBUS
OpenPOWER on IntegriCloud