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791d3ef2e1
'interrupt-parent' is often documented as part of define bindings, but it is really outside the scope of a device binding. It's never required in a given node as it is often inherited from a parent node. Or it can be implicit if a parent node is an 'interrupt-controller' node. So remove it from all the binding files. Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
25 lines
861 B
Text
25 lines
861 B
Text
Trusted Computing Group MMIO Trusted Platform Module
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The TCG defines multi vendor standard for accessing a TPM chip, this
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is the standard protocol defined to access the TPM via MMIO. Typically
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this interface will be implemented over Intel's LPC bus.
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Refer to the 'TCG PC Client Specific TPM Interface Specification (TIS)' TCG
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publication for the specification.
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Required properties:
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- compatible: should contain a string below for the chip, followed by
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"tcg,tpm-tis-mmio". Valid chip strings are:
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* "atmel,at97sc3204"
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- reg: The location of the MMIO registers, should be at least 0x5000 bytes
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- interrupts: An optional interrupt indicating command completion.
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Example:
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tpm_tis@90000 {
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compatible = "atmel,at97sc3204", "tcg,tpm-tis-mmio";
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reg = <0x90000 0x5000>;
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interrupt-parent = <&EIC0>;
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interrupts = <1 2>;
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};
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