On Tue Dec 12, 2023 at 6:39 PM EET, Ninad Palsule wrote: > From: Johannes Holland <johannes.holland@xxxxxxxxxxxx> > > 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. > Signed-off-by: Johannes Holland <johannes.holland@xxxxxxxxxxxx> > Signed-off-by: Joel Stanley <joel@xxxxxxxxx> > Signed-off-by: Ninad Palsule <ninad@xxxxxxxxxxxxx> > --- > .../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@xxxxxxxxxxxx> > + > +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@2e { > + compatible = "nuvoton,npct75x", "tcg,tpm-tis-i2c"; > + reg = <0x2e>; > + }; > + }; > +... BR, Jarkko
