[PATCH 4/8] dt-bindings: usb: microchip,usb2514: document the USB4604 hub
Dmitry Baryshkov <[email protected]>
| Newsgroups | org.kernel.vger.netdev,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.linux-usb |
|---|---|
| Message-ID | <[email protected]> |
The SMSC/Microchip USB4604 HSIC hub on the APQ8074 Dragonboard has its RESET_N pin wired to a PMIC GPIO. On this board the hub SMBus configuration interface is not usable (the bus pull-ups are referenced to 1.8V while the hub samples the strap against its 3.3V rail), so the hub runs in standalone mode and only needs its reset released, which has to be described in DT. Document the USB4604 device ID (0424:4604, the ID used when the upstream port operates in HSIC mode) in the onboard hub schema. Assisted-by: Claude:claude-fable-5 Signed-off-by: Dmitry Baryshkov <[email protected]> --- Documentation/devicetree/bindings/usb/microchip,usb2514.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/usb/microchip,usb2514.yaml b/Documentation/devicetree/bindings/usb/microchip,usb2514.yaml index 4e3901efed3f..cbff9a350857 100644 --- a/Documentation/devicetree/bindings/usb/microchip,usb2514.yaml +++ b/Documentation/devicetree/bindings/usb/microchip,usb2514.yaml @@ -17,6 +17,7 @@ properties: - usb424,2417 - usb424,2514 - usb424,2517 + - usb424,4604 - items: - enum: - usb424,2512 -- 2.47.3