Quentin Schulz <foss+uboot@0leil.net> says:
Due to updates to the Device Tree (migrating to onboard USB hub nodes
instead of (badly) hacking things with a gpio regulator that doesn't
actually work properly), we now need to enable the onboard USB hub
driver in U-Boot.
This anticipates upcoming breakage when 6.16 DT will be merged into
U-Boot's dts/upstream.
The series can be applied as is before v6.16 DT is merged or only the
defconfig changes after 6.16 DT has been merged.
The last two patches are simply to avoid probing devices that aren't
actually routed on RK3399 Puma, which is nice to have but doesn't fix
anything.
Note that this depends on the following series:
https://lore.kernel.org/u-boot/20250722-usb_onboard_hub_cypress_hx3-v4-0-91c3ee958c0e@thaumatec.com/
Link: https://lore.kernel.org/r/20250730-puma-usb-cypress-v1-0-b1c203c733f9@cherry.de
The dt-core typically allows multiple compatibles[1] but usb-device
currently forces a single compatible.
This is an issue when multiple devices with slightly different productID
all behave the same. This would require the driver to keep updating its
compatible matching table to include this new productID instead of doing
what is usually done: have two compatibles, the leftmost which matches
exactly the HW device definition, and the rightmost one as a fallback
which is assumed to be 100% compatible with the device at hand. If this
assumption turns out to be wrong, it is easy to work around this without
having to modify the device tree by handling the leftmost compatible in the driver.
[1] https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/dt-core.yaml#L21-L25
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250418-dt-binding-usb-device-compatibles-v2-1-b3029f14e800@cherry.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ upstream commit: 495df45f38c8ba3d74c3180a0a13a0ecbfa717d1 ]
(cherry picked from commit 932da7a8df7b6b43453d640b383d0076d5a7d9a5)
