doc: device-tree-bindings: add TIS TPMv2.0 SPI module info
[oweals/u-boot.git] / doc / device-tree-bindings / tpm2 / tis-tpm2-spi.txt
1 ST33TPHF20 SPI TPMv2.0 bindings
2 -------------------------------
3
4 Required properties:
5 - compatible            : Should be "tis,tpm2-spi"
6 - reg                   : SPI Chip select
7
8 Optional properties:
9 - gpio-reset            : Reset GPIO (if not connected to the SoC reset line)
10 - spi-max-frequency     : See spi-bus.txt
11
12 Example:
13
14         tpm@1 {
15                 compatible = "tis,tpm2-spi";
16                 reg = <1>;
17                 spi-max-frequency = <10000000>;
18         };