| GPIO Extcon device |
| |
| This is a virtual device used to generate USB cable states from the USB ID pin |
| connected to a GPIO pin. |
| |
| Required properties: |
| - compatible: Should be "extcon-gpio" |
| - extcon-id: The unique id of specific external connector. |
| Valid range is 0 (EXTCON_NONE) to 63 (EXTCON_NUM). |
| Refer include/linux/extcon.h for details. |
| - gpio: Specify GPIO (see gpio binding) |
| - debounce-ms: Debounce time for GPIO IRQ in ms |
| - irq-flags: interrupt flags (edge/level). Refer to "include/dt-bindings/interrupt-controller/irq.h" |
| - pinctrl-names, pinctrl-0, pinctrl-1,.. pinctrl-n: Refer to "Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt" |
| for these optional properties |
| |
| Example: |
| extcon_storage_cd { |
| compatible = "extcon-gpio"; |
| extcon-id = <62>; /* EXTCON_MECHANICAL */ |
| gpio = <&tlmm 126 GPIO_ACTIVE_LOW>; |
| debounce-ms = <200>; |
| irq-flags = <IRQ_TYPE_EDGE_BOTH>; |
| } |
| |
| &ufshc_card { |
| extcon = <&extcon_storage_cd>; |
| }; |
| |
| &sd_card { |
| extcon = <&extcon_storage_cd>; |
| }; |