[PATCH 4/4] usb: onboard-hub: Add support for Cypress HX3 family
Quentin Schulz
quentin.schulz at cherry.de
Fri May 16 17:16:38 CEST 2025
Hi Lukasz,
On 4/25/25 12:56 PM, Lukasz Czechowski wrote:
> The HX3 is a family of USB3.0 hub controllers that comes in
> different variants: CYUSB330x/CYUSB331x/CYUSB332x/CYUSB230x.
> To support this hub, controlling of reset pin and two
> power supplies is required.
> The reset time is set to 10ms, based on the datasheet [1].
> Power-on delay time is not required, so it is set to 0.
Global struct have their members initialized to "zero" in C, c.f.
https://stackoverflow.com/a/16015741 so you can simply omit it.
> The compatible strings added to of_match table are
> compliant with usb/cypress,hx3.yaml bindings.
>
> [1] https://www.infineon.com/dgdl/Infineon-HX3_USB_3_0_Hub_Consumer_Industrial-DataSheet-v22_00-EN.pdf?fileId=8ac78c8c7d0d8da4017d0ecb53f644b8
> Signed-off-by: Lukasz Czechowski <lukasz.czechowski at thaumatec.com>
This matches what was recently merged in Linux, so:
Reviewed-by: Quentin Schulz <quentin.schulz at cherry.de>
Thanks!
Quentin
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