Hello.
On 11/2/2014 9:11 PM, Robert Jarzmik wrote:
Add documentation for device-tree binding of the generic gpio-vbus phy
controller.
Signed-off-by: Robert Jarzmik <[email protected]>
Cc: [email protected]
---
.../devicetree/bindings/phy/gpio-vbus.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/gpio-vbus.txt
diff --git a/Documentation/devicetree/bindings/phy/gpio-vbus.txt
b/Documentation/devicetree/bindings/phy/gpio-vbus.txt
new file mode 100644
index 0000000..ffcfd35
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/gpio-vbus.txt
@@ -0,0 +1,23 @@
+GPIO VBus phy
It's either VBUS or Vbus.
+=============
+
+gpio-vbus is a phy controller supporting VBus detection and pullup activation
on
s/phy/PHY/.
+GPIOs.
+
+Required properties:
+- compatible : should be "generic,phy-gpio-vbus"
"generic," not needed.
+- #phy-cells : from the generic PHY bindings, must be 1.
However, you don't specify it in the example. It's also not clear why you
need 1, not 0.
+- gpios : set of 2 gpio properties (see gpio.txt for gpio properties
format)
+ first gpio is required, it's the VBus sensing input gpio
+ second gpio is optional, it's the D+ pullup controlling output
+ gpio
s/gpio/GPIO/.
+
+Optional properties:
+- wakeup : boolean, if true the VBus gpio will wakeup the platform
+
+Example:
+ usb2phy : gpio-vbus@13 {
Please use the generic node name ("usb-phy") in order to comply with the
ePAPR standard.
+ compatible = "generic,phy-gpio-vbus";
+ gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+ wakeup;
+ };
WBR, Sergei
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