d0d2368bf8
This driver is used to detect ACC and car reverse signal on vehicle system Change-Id: I74bedfe64ddb6a0f8eaf7ae8c7af74763ee8bf75 Signed-off-by: Kaige Li <kevin.li@rock-chips.com>
38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
Required properties:
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- compatible: should be "gpio-detection"
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- status:
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- pinctrl-0 : phandle referencing pin configuration of the gpio controller
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- pinctrl-names : a pinctrl state named "default" must be defined
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- car-reverse : a describtion to show the gpio will be use to car reverse
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- car-acc : a describtion to show the gpio will be use to car accelerate
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- gpios : The GPIO to set high/low, see "gpios property" in
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Documentation/devicetree/bindings/gpio/gpio.txt. If the pin should be
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low to power down the board set it to "Active Low", otherwise set
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gpio to "Active High".
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- linux,debounce-ms: interrupt debounce time. (u32)
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- label : The label / name for this partition. If omitted, the label is taken
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- gpio,wakeup : To enable the wakeup comparator in probe
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Example:
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gpio_det: gpio-det {
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compatible = "gpio-detection";
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status = "okay";
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pinctrl-0 = <&gpio3_b1 &gpio3_b2>;
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pinctrl-names = "default";
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car-reverse {
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car-reverse-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>;
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linux,debounce-ms = <5>;
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label = "car-reverse";
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gpio,wakeup;
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};
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car-acc {
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car-acc-gpios = <&gpio3 9 GPIO_ACTIVE_HIGH>;
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linux,debounce-ms = <5>;
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label = "car-acc";
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gpio,wakeup;
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};
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};
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