From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: amirmizi6@gmail.com
Cc: Eyal.Cohen@nuvoton.com, oshrialkoby85@gmail.com,
alexander.steffen@infineon.com, robh+dt@kernel.org,
mark.rutland@arm.com, peterhuewe@gmx.de, jgg@ziepe.ca,
arnd@arndb.de, gregkh@linuxfoundation.org,
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 v4 1/7] tpm: tpm_tis: Make implementation of read16 read32 write32 optional
Date: Tue, 31 Mar 2020 15:04:20 +0300 [thread overview]
Message-ID: <20200331120405.GF8295@linux.intel.com> (raw)
In-Reply-To: <20200331113207.107080-2-amirmizi6@gmail.com>
On Tue, Mar 31, 2020 at 02:32:01PM +0300, amirmizi6@gmail.com wrote:
> From: Amir Mizinski <amirmizi6@gmail.com>
>
> Only tpm_tis can use memory mapped I/O, which is truly mapped into
> the kernel's memory space. So using ioread16/ioread32/iowrite32 turn into a
> straightforward pointer dereference.
> Every other driver require more complicated operations to read more than 1
> byte at a time and will just fall back to read_bytes/write_bytes.
> Therefore, move this common code out of tpm_tis_spi into tpm_tis_core, so
> that it is automatically used when low-level drivers do not implement the
> specialized methods.
>
> Co-developed-by: Alexander Steffen <Alexander.Steffen@infineon.com>
> Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
> Signed-off-by: Amir Mizinski <amirmizi6@gmail.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
/Jarkko
next prev parent reply other threads:[~2020-03-31 12:04 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-31 11:32 [PATCH v4 0/7] Add tpm i2c ptp driver amirmizi6
2020-03-31 11:32 ` [PATCH v4 1/7] tpm: tpm_tis: Make implementation of read16 read32 write32 optional amirmizi6
2020-03-31 12:04 ` Jarkko Sakkinen [this message]
2020-03-31 11:32 ` [PATCH v4 2/7] tpm: tpm_tis: Add check_data handle to tpm_tis_phy_ops in order to check data integrity amirmizi6
2020-04-01 8:20 ` Jarkko Sakkinen
2020-04-01 20:18 ` Benoit HOUYERE
[not found] ` <CAMHTsUUvStPHNL-W7vtjGrtehQx22jUZbN8kLib4h+JWH3p7_w@mail.gmail.com>
2020-04-02 20:17 ` Jarkko Sakkinen
2020-03-31 11:32 ` [PATCH v4 3/7] tpm: tpm_tis: rewrite "tpm_tis_req_canceled()" amirmizi6
2020-03-31 12:13 ` Jarkko Sakkinen
2020-03-31 13:52 ` Ken Goldman
2020-03-31 11:32 ` [PATCH v4 4/7] tpm: tpm_tis: Fix expected bit handling and send all bytes in one shot without last byte in exception amirmizi6
2020-03-31 12:17 ` Jarkko Sakkinen
2020-03-31 21:34 ` Benoit HOUYERE
2020-04-01 8:34 ` Jarkko Sakkinen
2020-03-31 11:32 ` [PATCH v4 5/7] tpm: Handle an exception for TPM Firmware Update mode amirmizi6
2020-03-31 11:32 ` [PATCH v4 6/7] dt-bindings: tpm: Add YAML schema for TPM TIS I2C options amirmizi6
2020-03-31 16:31 ` Rob Herring
2020-03-31 11:32 ` [PATCH v4 7/7] tpm: tpm_tis: add tpm_tis_i2c driver amirmizi6
2020-03-31 12:20 ` Jarkko Sakkinen
2020-03-31 15:38 ` Randy Dunlap
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