Created
September 1, 2021 14:06
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Zephyr level shifter GPIO abstraction
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| /dts-v1/ | |
| / { | |
| shifter: 74hc595a@0 { | |
| compatible = "ti,xx74hc595a"; | |
| a-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>; | |
| b-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>; | |
| c-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>; | |
| } | |
| kscan: kscan0 { | |
| compatible = "zmk,kscan-gpio-matrix"; | |
| diode-direction = "col2row"; | |
| col-gpios = | |
| <&shifter 0 GPIO_ACTIVE_HIGH>, | |
| <&shifter 1 GPIO_ACTIVE_HIGH>, | |
| <&shifter 2 GPIO_ACTIVE_HIGH>, | |
| <&shifter 3 GPIO_ACTIVE_HIGH>, | |
| <&shifter 4 GPIO_ACTIVE_HIGH> | |
| ; | |
| row-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH GPIO_PULL_DOWN>; | |
| } | |
| } |
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