[U-Boot] [PATCH v4 27/32] doc: device-tree-bindings: add TIS TPMv2.0 SPI module info

[Miquel Raynal]

Add TIS TPMv2.0 SPI module bindings.

Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
 doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt

diff --git a/doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt b/doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt
new file mode 100644
index 0000000000..b48a15112d
--- /dev/null
+++ b/doc/device-tree-bindings/tpm2/tis-tpm2-spi.txt
@@ -0,0 +1,18 @@
+ST33TPHF20 SPI TPMv2.0 bindings
+-------------------------------
+
+Required properties:
+- compatible		: Should be "tis,tpm2-spi"
+- reg			: SPI Chip select
+
+Optional properties:
+- gpio-reset		: Reset GPIO (if not connected to the SoC reset line)
+- spi-max-frequency	: See spi-bus.txt
+
+Example:
+
+	tpm at 1 {
+		compatible = "tis,tpm2-spi";
+		reg = <1>;
+		spi-max-frequency = <10000000>;
+	};
-- 
2.14.1