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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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22 lines
694 B
Plaintext
22 lines
694 B
Plaintext
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Synopsys GPIO via CREG (Control REGisters) driver
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Required properties:
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- compatible : "snps,creg-gpio-hsdk" or "snps,creg-gpio-axs10x".
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- reg : Exactly one register range with length 0x4.
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- #gpio-cells : Since the generic GPIO binding is used, the
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amount of cells must be specified as 2. The first cell is the
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pin number, the second cell is used to specify optional parameters:
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See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt.
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- gpio-controller : Marks the device node as a GPIO controller.
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- ngpios: Number of GPIO pins.
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Example:
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gpio: gpio@f00014b0 {
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compatible = "snps,creg-gpio-hsdk";
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reg = <0xf00014b0 0x4>;
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gpio-controller;
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#gpio-cells = <2>;
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ngpios = <2>;
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};
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