From: Rob Herring <robh@kernel.org>
To: amirmizi6@gmail.com
Cc: Eyal.Cohen@nuvoton.com, jarkko.sakkinen@linux.intel.com,
oshrialkoby85@gmail.com, alexander.steffen@infineon.com,
mark.rutland@arm.com, peterhuewe@gmx.de, jgg@ziepe.ca,
arnd@arndb.de, gregkh@linuxfoundation.org, benoit.houyere@st.com,
eajames@linux.ibm.com, joel@jms.id.au,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-integrity@vger.kernel.org, oshri.alkoby@nuvoton.com,
tmaimon77@gmail.com, gcwilson@us.ibm.com, kgoldman@us.ibm.com,
Dan.Morav@nuvoton.com, oren.tanami@nuvoton.com,
shmulik.hager@nuvoton.com, amir.mizinski@nuvoton.com
Subject: Re: [PATCH v7 6/7] tpm: Add YAML schema for TPM TIS I2C options
Date: Tue, 5 May 2020 11:12:26 -0500 [thread overview]
Message-ID: <20200505161226.GA555@bogus> (raw)
In-Reply-To: <20200427124931.115697-7-amirmizi6@gmail.com>
On Mon, Apr 27, 2020 at 03:49:30PM +0300, amirmizi6@gmail.com wrote:
> From: Amir Mizinski <amirmizi6@gmail.com>
>
> Added a YAML schema to support tpm tis i2c related 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.
Again, DT bindings describe h/w devices, not just a protocol. A device
is more than just a protocol interface. There's clocks, power rails,
resets, interrupts, firmware, etc.
Unless there's something special about TPM chips that makes none of this
applicable and no chip will ever have any quirks (or extensions) in
their protocol to work-around, then you need compatible string(s) that
are specific to the TPM chip. You can have tcg,tpm-tis-i2c as a
fallback, but you need specific compatible to handle any quirks.
Rob
next prev parent reply other threads:[~2020-05-05 16:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-27 12:49 [PATCH v7 0/7] Add tpm i2c ptp driver amirmizi6
2020-04-27 12:49 ` [PATCH v7 1/7] tpm: tpm_tis: Make implementation of read16, read32 and write32 optional amirmizi6
2020-04-27 12:49 ` [PATCH v7 2/7] tpm: tpm_tis: Add verify_data_integrity handle toy tpm_tis_phy_ops amirmizi6
2020-04-29 5:34 ` Jarkko Sakkinen
2020-04-30 10:19 ` Amir Mizinski
2020-04-27 12:49 ` [PATCH v7 3/7] tpm: tpm_tis: Rewrite "tpm_tis_req_canceled()" amirmizi6
2020-04-29 5:37 ` Jarkko Sakkinen
2020-04-30 10:29 ` Amir Mizinski
2020-04-27 12:49 ` [PATCH v7 4/7] tpm: tpm_tis: Fix expected bit handling and send all bytes in one shot without last byte in exception amirmizi6
2020-04-27 12:49 ` [PATCH v7 5/7] tpm: Handle an exception for TPM Firmware Update mode amirmizi6
2020-04-27 12:49 ` [PATCH v7 6/7] tpm: Add YAML schema for TPM TIS I2C options amirmizi6
2020-05-05 16:12 ` Rob Herring [this message]
2020-05-06 15:20 ` Amir Mizinski
2020-05-06 19:02 ` Rob Herring
2020-04-27 12:49 ` [PATCH v7 7/7] tpm: tpm_tis: add tpm_tis_i2c driver amirmizi6
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