itop4412 linux-4.14.2 can设备树
待验证&pinctrl_1 { mcp2515_irq: mcp2515-irq { samsung,pins = "gpx0-1"; samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>; samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>; samsung,pin-drv = <EXYNOS4_PIN_DRV_