"resets" is a standard property which already has a type. Users only need
to define how many clocks and what each clock is if more than 1 clock.
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Link: https://lore.kernel.org/r/20240124190714.1553772-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Convert the devicetree bindings for the IBM Virtual Trusted Platform
Module to DT schema. Drop properties which are already documented in
tpm-common.yaml.
Document the "IBM,vtpm20" compatible string introduced by commit
18b3670d79 ("tpm: ibmvtpm: Add support for TPM2").
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/5c41e045dfe7cc3f27dd41c08c62ed8c4a90d8a4.1702806810.git.lukas@wunner.de
Signed-off-by: Rob Herring <robh@kernel.org>
Convert the devicetree bindings for the Google Security Chip H1 running
Cr50 firmware to DT schema.
The chip can be attached to SPI or I²C. Existing devicetrees use the
same "google,cr50" compatible string for both cases without additionally
specifying a generic "tcg,tpm_tis-spi" or "tcg,tpm-tis-i2c" compatible.
The chip therefore cannot be documented in the tcg,tpm_tis-spi.yaml and
tcg,tpm-tis-i2c.yaml schemas: The validator would select both of them
and complain about SPI properties when the chip is an I²C peripheral.
So document the chip in a schema of its own which includes both, SPI and
I²C properties by reference.
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/52635205818ab201cacb0c0f37c7fa48149c7f8e.1702806810.git.lukas@wunner.de
Signed-off-by: Rob Herring <robh@kernel.org>
A significant number of Trusted Platform Modules conform to the "TIS"
specification published by the Trusted Computing Group ("TCG PC Client
Specific TPM Interface Specification"). These chips typically use an
SPI, I²C or LPC bus as transport (via MMIO in the latter case). Some
of them even support multiple of those buses (selectable through a
config strap) or the same chip is available in multiple SKUs, each with
a different bus interface.
The devicetree bindings for these TPMs have not been converted to DT
schema yet and are spread out across 3 generic files and 2 chip-specific
files. A few TPM compatible strings were added to trivial-devices.yaml
even though additional properties are documented in the plaintext
bindings.
Consolidate the devicetree bindings into 3 yaml files, one per bus.
Move common properties to a separate tpm-common.yaml.
Document compatible strings which are supported by the TPM TIS driver
but were neglected to be added to the devicetree bindings.
Document the memory-region property recently introduced by commit
1e2714bb83 ("tpm: Add reserved memory event log").
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/953fd4c7519030db88e5b5e12ab6307414ebdd21.1702806810.git.lukas@wunner.de
Signed-off-by: Rob Herring <robh@kernel.org>
