mirror of
https://github.com/Ysurac/openmptcprouter.git
synced 2025-02-15 04:42:02 +00:00
25 lines
513 B
Text
25 lines
513 B
Text
/ {
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io_expander = "shiftreg_1";
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soc {
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ext_io {
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compatible = "spi-gpio";
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#address-cells = <1>;
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#size-cells = <0>;
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gpio-sck = <&tlmm 1 GPIO_ACTIVE_HIGH>; // SRCLK
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gpio-mosi = <&tlmm 3 GPIO_ACTIVE_HIGH>; // SER
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cs-gpios = <&tlmm 2 GPIO_ACTIVE_HIGH>; // RCLK
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num-chipselects = <1>;
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shift_io: shift_io@0 {
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compatible = "fairchild,74hc595";
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reg = <0>;
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gpio-controller;
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#gpio-cells = <2>;
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registers-number = <3>;
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spi-max-frequency = <10000000>;
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};
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};
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};
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};
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