Re: [PATCH v1 1/2] dt-bindings: usb: Move Tegra-specific Chipidea USB properties into a dedicated schema

[Svyatoslav Ryhel]

вт, 27 жовт. 2026 р. о 00:29 Rob Herring <robh@xxxxxxxxxx> пише:
>
> On Sun, Oct 04, 2026 at 07:52:03PM +0300, Svyatoslav Ryhel wrote:
> > Move all Tegra-specific Chipidea devices and their properties into a
> > dedicated schema file, by analogy with i.MX.
>
> I don't really see the point given it is only 2 deprecated properties.
> Maybe those can be removed? Depends if they are deprecated and still
> used or deprecated and removed from .dts files years ago.
>

The ci-hdrc-usb2.yaml schema contains properties that are not
applicable to Tegra, and conversely, Tegra-specific properties are not
applicable to qcom, nxp, nuvoton, etc.

The 'nvidia,needs-double-reset' property is required for Tegra20 and
Tegra30, and it is still actively in use, as you can see here [1]. Its
marked deprecated state appears to be incorrect, as it should simply
be restricted to Tegra20 and Tegra30.

The 'nvidia,phy' property is still used across all ARMv7 Tegra
generations + Tegra210, as the Chipidea driver has not yet been
converted to use the generic property. Therefore, while it is marked
as deprecated, it remains in active use.

The example I added is from Tegra30, which in the real devicetree uses
both properties, so I've included them here as well. With your
permission, I can remove the Tegra-specific parts from
ci-hdrc-usb2.yaml and tailor the proposed schema to better fit the
current state.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm/boot/dts/nvidia/tegra30.dtsi?h=next-20261026#n1146

> Rob