diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2018-09-12 11:28:36 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2019-06-21 14:30:49 +0200 |
| commit | 26a6ffc2f111eb28302694b240973615bd7addfe (patch) | |
| tree | 03443c535fe73c8928aa9566100a194f84188582 /Documentation | |
| parent | c54f80473bcd637639287071a392ada7fdad4746 (diff) | |
usb: misc: usb3503: add the usb3803 variant
While the usb3503 variant uses a HSIC connection to upstream,
the usb3803 uses a regular USB connection and provides a
bypass mode which connects the upstream port with downstream
port 3.
This adds an additional control gpio to the configuration which
allows moving away from the bypass mode to either standby or hub
mode once the driver is instantiated.
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
(cherry picked from commit e7812f55781bd9453a231d104a2c6c520491e2e4)
(cherry picked from commit 8662817b83bee3c30336f104608752fcb652f5c4)
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/usb3503.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/usb/usb3503.txt b/Documentation/devicetree/bindings/usb/usb3503.txt index c1a0a9191d26..f66f79e6fe0e 100644 --- a/Documentation/devicetree/bindings/usb/usb3503.txt +++ b/Documentation/devicetree/bindings/usb/usb3503.txt @@ -1,11 +1,14 @@ SMSC USB3503 High-Speed Hub Controller Required properties: -- compatible: Should be "smsc,usb3503" or "smsc,usb3503a". +- compatible: Should be "smsc,usb3503" or "smsc,usb3503a" or "smsc,usb3803". Optional properties: - reg: Specifies the i2c slave address, it is required and should be 0x08 if I2C is used. +- bypass-gpios: Should specify GPIO for bypass. + Follows the state of reset-gpios and is meant to be used with + usb3803's bypass pin. - connect-gpios: Should specify GPIO for connect. - disabled-ports: Should specify the ports unused. '1' or '2' or '3' are available for this property to describe the port |