Integrate TCAN4x5x into i.MX8 dts file - linux-kernel

Question

I've some trouble in enabling can device on my embedded platform based on iMX8 and YOCTO. To do that I would use the kernel driver already in the distro (TCAN4x5x). I've modified the *.dts file adding the following statements :
&ecspi2 { /* CAN */
    pinctrl-names = "default";
    pinctrl-0 = <&pinctrl_ecspi2>;
    status = "okay";
    tcan4x5x: tcan4x5x#0 {
        compatible = "ti,tcan4x5x";
        reg = <0>;
        #address-cells = <1>;
        #size-cells = <1>;
        spi-max-frequency = <10000000>;
        bosch,mram-cfg = <0x0 0 0 16 0 0 1 1>;
        interrupt-parent = <&gpio1>;
        interrupts = <14 IRQ_TYPE_LEVEL_LOW>;
        device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
        device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
        reset-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
    };
};
In according to the documentations in
T-can driver
and
+CONFIG_CAN_M_CAN=m
+CONFIG_CAN_M_CAN_TCAN4X5X=m
to enable the driver into the kernel, patching "defconfig" file Now the dmesg command shows :
so in not clear what I've forgotten in *.dts
Some more details :
On the SOM the CANbs is not integrated
I've checked in bosch can and I don't understand if the bosch can must be
integrated into dts file
Thanks for sharing your idea