hte: handle nvidia,gpio-controller property
The dt binding adds nvidia,gpio-controller property from Tegra234 SoC onwards to simplify code handling gpio chip search. The gpio chip search is needed for the AON GPIO GTE instances to map the hardware timestamp GPIO request (coming from the GPIO framework) to the tegra HTE providers. The patch also adds new gpio chip match function to match from the fwnode instead of the gpio controller label. The addition of the property does not break ABI for the existing Tegra194 code. Signed-off-by:Dipen Patel <dipenp@nvidia.com> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org>
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