[PATCH v1 2/8] dt-bindings: tpm: Add schema for TIS I2C devices
Ninad Palsule
ninad at linux.ibm.com
Thu Dec 14 05:38:22 AEDT 2023
Hello Jarkko,
On 12/13/23 12:20, Jarkko Sakkinen wrote:
> On Tue Dec 12, 2023 at 6:39 PM EET, Ninad Palsule wrote:
>> From: Johannes Holland <johannes.holland at infineon.com>
>>
>> Add a dt schema to support device tree bindings for the generic I2C
>> physical layer. Refer to the TCG PC Client Platform TPM Profile (PTP)
>> Specification for TPM 2.0 v1.04 Revision 14.
>>
>> This includes descriptions for the Nuvoton and Infineon devices.
>>
>> OpenBMC-Staging-Count: 3
> Please don't invent your own tags.
Yes, Sorry. I have cherry-picked this commit from openbmc. Now I have
removed this line.
Thanks for the review.
Thanks & Regards,
Ninad
>
>> Signed-off-by: Johannes Holland <johannes.holland at infineon.com>
>> Signed-off-by: Joel Stanley <joel at jms.id.au>
>> Signed-off-by: Ninad Palsule <ninad at linux.ibm.com>
>> ---
>> .../bindings/security/tpm/tpm-tis-i2c.yaml | 50 +++++++++++++++++++
>> 1 file changed, 50 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 000000000000..de1e34065748
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/security/tpm/tpm-tis-i2c.yaml
>> @@ -0,0 +1,50 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%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 Devices
>> +
>> +maintainers:
>> + - Johannes Holland <johannes.holland at infineon.com>
>> +
>> +description:
>> + Device Tree Bindings for I2C based Trusted Platform Module (TPM).
>> +
>> +properties:
>> + $nodename:
>> + pattern: "^tpm(@[0-9a-f]+)?$"
>> +
>> + compatible:
>> + oneOf:
>> + - description: Infineon's Trusted Platform Module (TPM) (SLB9673).
>> + items:
>> + - const: infineon,slb9673
>> + - const: tcg,tpm-tis-i2c
>> + - description: Nuvoton's Trusted Platform Module (TPM) (NPCT75x).
>> + items:
>> + - const: nuvoton,npct75x
>> + - const: tcg,tpm-tis-i2c
>> + - const: tcg,tpm-tis-i2c
>> + reg:
>> + maxItems: 1
>> +
>> +required:
>> + - compatible
>> + - reg
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + i2c {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + tpm at 2e {
>> + compatible = "nuvoton,npct75x", "tcg,tpm-tis-i2c";
>> + reg = <0x2e>;
>> + };
>> + };
>> +...
>
> BR, Jarkko
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