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| author | Badhri Jagan Sridharan <badhri@google.com> | 2018-10-01 22:44:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-07 15:20:39 +0300 |
| commit | da0b7c7766ea96d057094ecd05bcc1b3fec7e538 (patch) | |
| tree | 3123f5ffa16a2ecde840495d2eba0e868548abfa /Documentation/devicetree/bindings | |
| parent | 651022382c7f8da46cb4872a545ee1da6d097d2a (diff) | |
| download | linux-da0b7c7766ea96d057094ecd05bcc1b3fec7e538.tar.xz | |
dt-bindings: connector: Add self-powered property
>From USB_PD_R3_0
7.1.5 Response to Hard Resets
Device operation during and after a Hard Reset is defined as follows:
Self-powered devices Should Not disconnect from USB during a Hard Reset
(see Section 9.1.2).
Bus powered devices will disconnect from USB during a Hard Reset due to the
loss of their power source.
Therefore it is necessary to know whether the port belongs to
a device which is self powered or bus powered. This change
adds "self-powered" flag to the connector class which present indicates
that the port belongs to a device that is self powered. Else it is
bus powered usb device.
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
-------
Changes is v3:
- Rebase on top of usb-next
- no change w.r.t to this patch. Same as previous versions.
No v2 version as the patch was introduced there.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/connector/usb-connector.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.txt b/Documentation/devicetree/bindings/connector/usb-connector.txt index d90e17e2428b..a9a2f2fc44f2 100644 --- a/Documentation/devicetree/bindings/connector/usb-connector.txt +++ b/Documentation/devicetree/bindings/connector/usb-connector.txt @@ -14,6 +14,8 @@ Optional properties: - label: symbolic name for the connector, - type: size of the connector, should be specified in case of USB-A, USB-B non-fullsize connectors: "mini", "micro". +- self-powered: Set this property if the usb device that has its own power + source. Optional properties for usb-c-connector: - power-role: should be one of "source", "sink" or "dual"(DRP) if typec |