dt-bindings: pinctrl: mt8195: add wrapping node of pin configurations

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On mt8195, the pinctrl node has pinctrl groups to group pin
configurations by users' need. In each pinctrl group, it has
subnode(s) to list pins needed and pin configurations. By supporting
multiple subnodes, we can configure different pin characteristics
(driving/pull-up/pull-down/etc.) in a pinctrl group.

Update pinctrl-mt8195.yaml to add subnode in pinctrl groups and an
example to illustrate the usage.

Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211220121825.6446-4-tinghan.shen@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Tinghan Shen 2021-12-20 20:18:24 +08:00 • committed by Linus Walleij

parent c8eefdbfa1

commit 79dcd4e840

1 changed files with 188 additions and 150 deletions

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Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml

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