Kernel-4.18.0-80.el8_tpm_tis_spi

Required properties:

• compatible: should be one of the following
  “st,st33htpm-spi”
  “infineon,slb9670”
  “tcg,tpm_tis-spi”
• spi-max-frequency: Maximum SPI frequency (depends on TPMs).

Optional SoC Specific Properties:

• pinctrl-names: Contains only one value - “default”.
• pintctrl-0: Specifies the pin control groups used for this controller.

Example (for ARM-based BeagleBoard xM with TPM_TIS on SPI4):

&mcspi4 {

    tpm_tis@0 {

            compatible = "tcg,tpm_tis-spi";

            spi-max-frequency = <10000000>;
    };

};