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Diffstat (limited to 'Documentation/devicetree/bindings/usb/typec.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/typec.txt | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/typec.txt b/Documentation/devicetree/bindings/usb/typec.txt new file mode 100644 index 000000000000..f1339dce5978 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/typec.txt @@ -0,0 +1,50 @@ +Generic typec and power delivery properties +------------------------------------------- + +Required properties: +- port-type: should be one of "drp", "dfp" or "ufp". +- default-role: preferred power role if drp, should be "sink" or "source". +- src-pdos: An array of u32 with each entry providing supported power + source data object(PDO), the detailed bit definitions of + PDO can be found in "Universal Serial Bus Power Delivery + Specification" chapter 6.4.1.2 Source_Capabilities Message, + the order of each entry(PDO) should follow the PD spec chapter + 6.4.1. Required only for power source and power dual role with + power delivery support. +- snk-pdos: An array of u32 with each entry providing supported power + sink data object(PDO), the detailed bit definitions of PDO + can be found in "Universal Serial Bus Power Delivery + Specification" chapter 6.4.1.3 Sink Capabilities Message, + the order of each entry(PDO) should follow the PD spec chapter + 6.4.1. Required only for power sink and power dual role with + power delivery support. +- max-snk-mv: The max voltage the sink can support in millivoltage, required + only for power sink and power dual role with power delivery + support. +- max-snk-ma: The max current the sink can support in milliampere, required + only for power sink and power dual role with power delivery + support. +- op-snk-mw: Sink required operating power in milliwatts, if source offered + power is less then it, Capability Mismatch is set, required + only for power sink and power dual role with power delivery + support. +- max-snk-mw: The max power the sink can support in milliwatts, required + for power sink and power dual role with power delivery support, + power sink needs this property to get the max current based on + the selected PDO. + +Example: + +ptn5110@50 { + compatible = "usb,tcpci"; + reg = <0x50>; + interrupt-parent = <&gpio3>; + interrupts = <3 IRQ_TYPE_LEVEL_LOW>; + port-type = "drp"; + default-role = "sink"; + src-pdos = <0x380190c8>; + snk-pdos = <0x380190c8 0x3802d0c8>; + max-snk-mv = <9000>; + max-snk-ma = <1000>; + op-snk-mw = <9000>; +}; |