linux-kernel - [PATCH v3 6/7] dt-bindings: tpm: Add YAML schema for TPM TIS I2C options

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Message-Id: <20200210162838.173903-7-amirmizi6@gmail.com>
Date:   Mon, 10 Feb 2020 18:28:37 +0200
From:   amirmizi6@...il.com
To:     Eyal.Cohen@...oton.com, jarkko.sakkinen@...ux.intel.com,
        oshrialkoby85@...il.com, alexander.steffen@...ineon.com,
        robh+dt@...nel.org, mark.rutland@....com, peterhuewe@....de,
        jgg@...pe.ca, arnd@...db.de, gregkh@...uxfoundation.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-integrity@...r.kernel.org, oshri.alkoby@...oton.com,
        tmaimon77@...il.com, gcwilson@...ibm.com, kgoldman@...ibm.com,
        Dan.Morav@...oton.com, oren.tanami@...oton.com,
        shmulik.hager@...oton.com, amir.mizinski@...oton.com,
        Amir Mizinski <amirmizi6@...il.com>
Subject: [PATCH v3 6/7] dt-bindings: tpm: Add YAML schema for TPM TIS I2C options

From: Amir Mizinski <amirmizi6@...il.com>

Added a YAML schema to support tpm tis i2c realted dt-bindings for the I2c
 PTP based physical layer.

This patch adds the documentation for corresponding device tree bindings of
 I2C based Physical TPM.
Refer to the 'I2C Interface Definition' section in
 'TCG PC Client PlatformTPMProfile(PTP) Specification' publication
 for specification.

Signed-off-by: Amir Mizinski <amirmizi6@...il.com>
---
 .../bindings/security/tpm/tpm-tis-i2c.yaml         | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml

diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml b/Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml
new file mode 100644
index 0000000..ca16b59
--- /dev/null
+++ b/Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/security/tpm/tpm-tis-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2C PTP based TPM Device Tree Bindings
+
+maintainers:
+  - Amir Mizinski <amirmizi6@...il.com>
+
+description:
+  Device Tree Bindings for I2C based Trusted Platform Module(TPM).
+
+properties:
+  compatible:
+    contains:
+      const: tcg,tpm-tis-i2c
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  crc-checksum:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      CRC checksum enable.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    tpm-tis-i2c: tpm-tis-i2c@2e {
+       compatible = "tcg,tpm-tis-i2c";
+       reg = <0x2e>;
+       interrupts = <&gpio 24 GPIO_ACTIVE_HIGH>;
+       crc-checksum;
+    };
-- 
2.7.4