diff options
| author | Max Krummenacher <max.krummenacher@toradex.com> | 2018-09-12 11:28:36 +0200 |
|---|---|---|
| committer | Philippe Schenker <philippe.schenker@toradex.com> | 2020-08-13 16:04:40 +0200 |
| commit | c50a50255ccd76c87e5bc624deaa0828aee6fd93 (patch) | |
| tree | 58c09d37e4f3a2aacc381b4d47c6cd6b4d51a053 /Documentation | |
| parent | 92821c2fc1cdb8f22641b9f65a38de8636b1db28 (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)
(cherry picked from commit a13c0df11735a5964ceec0d72e17226773bcc01f)
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 057dd384d473..5157c16d55d1 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 |