diff options
| author | Jack Pham <jackp@codeaurora.org> | 2016-09-29 23:50:40 -0700 |
|---|---|---|
| committer | Jack Pham <jackp@codeaurora.org> | 2016-10-14 17:51:45 -0700 |
| commit | d1d42ada3dd73c313db2ffd2811d2b83841d5eb9 (patch) | |
| tree | 65407655d43f14d40415127448ec7f82592984a8 /Documentation | |
| parent | b08f588476adf8952efd3ae969787c5be1519f42 (diff) | |
usb: pd: Support VCONN Swap
Support incoming VCONN Swap requests by accepting and turning
off/on VCONN.
Due to HW board limitations, if VCONN is being sourced from the
VBUS input we cannot support enabling VCONN while as a sink and
greater than 5V has been negotiated on VBUS. In that case, reject
the request. Add a device tree property that indicates whether
the board is configured for separate VCONN supply.
Change-Id: If3a9aa316ae08a80468631f3d536a1b345e21b18
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/qpnp-pdphy.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/qpnp-pdphy.txt b/Documentation/devicetree/bindings/usb/qpnp-pdphy.txt index f5c6651affea..cd1386512bd3 100644 --- a/Documentation/devicetree/bindings/usb/qpnp-pdphy.txt +++ b/Documentation/devicetree/bindings/usb/qpnp-pdphy.txt @@ -40,6 +40,9 @@ Optional properties: - vconn-supply: Regulator that enables VCONN source output. This will be supplied on the USB CC line that is not used for communication when Ra resistance is detected. +- qcom,vconn-uses-external-source: Indicates whether VCONN supply is sourced + from an external regulator. If omitted, then it is + assumed it is connected to VBUS. Example: qcom,qpnp-pdphy@1700 { |