Kernel-4.18.0-80.el8_st33zp24-spi

• STMicroelectronics SAS. ST33ZP24 TPM SoC

Required properties:

• compatible: Should be “st,st33zp24-spi”.
• spi-max-frequency: Maximum SPI frequency (<= 10000000).

Optional ST33ZP24 Properties:

• interrupt-parent: phandle for the interrupt gpio controller
• interrupts: GPIO interrupt to which the chip is connected
• lpcpd-gpios: Output GPIO pin used for ST33ZP24 power management D1/D2 state.
  If set, power must be present when the platform is going into sleep/hibernate mode.

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 ST33ZP24 on SPI4):

&mcspi4 {

    st33zp24@0 {

            compatible = "st,st33zp24-spi";

            spi-max-frequency = <10000000>;

            interrupt-parent = <&gpio5>;
            interrupts = <7 IRQ_TYPE_LEVEL_HIGH>;

            lpcpd-gpios = <&gpio5 15 GPIO_ACTIVE_HIGH>;
    };

};