Re: [PATCH v3 0/4] pinctrl: tegra: Separate Tegra194 instances

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On Fri, Nov 4, 2022 at 3:23 PM Thierry Reding <thierry.reding@xxxxxxxxx> wrote:

> From: Thierry Reding <treding@xxxxxxxxxx>
>
> This patch series changes the pin controller DT description on Tegra194
> in order to properly describe how the hardware works. Currently a
> simplified description is used that merges two pin controller instances
> (called AON and main) into a single DT node. This has some disadvantages
> such as creating a complicated mapping between the pins in those pin
> controllers and the corresponding GPIO controllers (which are already
> separated).
>
> As a prerequisite, the first patch in this series converts the device
> tree bindings to json-schema. A second patch then adds an additional
> compatible string for the AON instance (along with more details about
> each controller's pins) and finally patch 3 converts the driver to
> cope with these changes. A fourth patch makes the corresponding
> changes in the Tegra194 DTS file.
>
> Note that while this changes the DT node in an incompatible way, this
> doesn't have any practical implications for backwards-compatibility. The
> reason for this is that device trees have only reconfigured a very
> narrow subset of pins of the main controller, so the new driver will
> remain backwards-compatible with old device trees.
>
> Changes in v3:
> - address more review comments by Rob Herring and make validation work

This looks good to me!

I tried to apply them to the pinctrl devel branch but this happens:

$ git am --signoff
./v3_20221104_thierry_reding_pinctrl_tegra_separate_tegra194_instances.mbx
Applying: dt-bindings: pinctrl: tegra: Convert to json-schema
error: Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.yaml:
does not exist in index
Patch failed at 0001 dt-bindings: pinctrl: tegra: Convert to json-schema

I guess there are some prerequisites?

Yours,
Linus Walleij



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