162306a36Sopenharmony_ciCirrus Logic CLPS711X GPIO controller
262306a36Sopenharmony_ci
362306a36Sopenharmony_ciRequired properties:
462306a36Sopenharmony_ci- compatible: Should be "cirrus,ep7209-gpio"
562306a36Sopenharmony_ci- reg: Physical base GPIO controller registers location and length.
662306a36Sopenharmony_ci  There should be two registers, first is DATA register, the second
762306a36Sopenharmony_ci  is DIRECTION.
862306a36Sopenharmony_ci- gpio-controller: Marks the device node as a gpio controller.
962306a36Sopenharmony_ci- #gpio-cells: Should be two. The first cell is the pin number and
1062306a36Sopenharmony_ci  the second cell is used to specify the gpio polarity:
1162306a36Sopenharmony_ci    0 = active high
1262306a36Sopenharmony_ci    1 = active low
1362306a36Sopenharmony_ci
1462306a36Sopenharmony_ciNote: Each GPIO port should have an alias correctly numbered in "aliases"
1562306a36Sopenharmony_cinode.
1662306a36Sopenharmony_ci
1762306a36Sopenharmony_ciExample:
1862306a36Sopenharmony_ci
1962306a36Sopenharmony_cialiases {
2062306a36Sopenharmony_ci	gpio0 = &porta;
2162306a36Sopenharmony_ci};
2262306a36Sopenharmony_ci
2362306a36Sopenharmony_ciporta: gpio@80000000 {
2462306a36Sopenharmony_ci	compatible = "cirrus,ep7312-gpio","cirrus,ep7209-gpio";
2562306a36Sopenharmony_ci	reg = <0x80000000 0x1>, <0x80000040 0x1>;
2662306a36Sopenharmony_ci	gpio-controller;
2762306a36Sopenharmony_ci	#gpio-cells = <2>;
2862306a36Sopenharmony_ci};
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