Re: [PATCH 4/8] dt-bindings: usb: microchip,usb2514: document the USB4604 hub
Krzysztof Kozlowski <[email protected]>
| Newsgroups | org.kernel.vger.linux-usb,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.netdev |
|---|---|
| Message-ID | <20260813-visionary-fiery-saluki-ef86b5@quoll> |
On Mon, Aug 10, 2026 at 03:42:35AM +0300, Dmitry Baryshkov wrote: > 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]> > --- Acked-by: Krzysztof Kozlowski <[email protected]> Best regards, Krzysztof