Re: [PATCH 00/12] Few minnor fixes, rework of tpm_tis to support tcg spi and i2c.

[Jarkko Sakkinen <jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>]

On Sun, Mar 20, 2016 at 08:34:31PM +0100, Christophe Ricard wrote:
> Hi Jarkko,
> 
> Please find in this serie some few minnor fixes as well as some more work around the
> tpm_tis driver.
> 
> This work is based on Peter Huewe's proposal in October 30th 2015:
> https://patchwork.ozlabs.org/patch/538179/
> 
> I have tried to keep Peter's credits on related patches.
> 
> The idea is to have one main tpm_tis_core which would keep a common tpm_tis logic for
> all physical layers(i2c, spi, legacy/lpc).
> This tpm_tis_core can be reused by other drivers (such as st33zp24...) and would
> potentially easy the maintenance.
> 
> It offers support for LPC (tpm_tis), SPI (tpm_tis_spi) and I2C (tpm_tis_i2c) following
> ongoing or available TCG specifications
> 
> SPI layer is supporting wait state/Flow Control as describe in the TCG PTP specification
> (chapter 6.4.5 Flow Control).
> 
> I2C layer is following TCG on going and almost finalized specification.
> 
> Physical layer i2c and spi are tested using STMicro TPM's against Minnowboard, RaspberryPi
> and Beagleboard xM in both polling and interrupt mode.
> 
> For now, i haven't been able to test the LPC/legacy layer but assume it should work.
> 
> Any comment welcome :).

Some of the patches are good but in general I think the patch set itself
is not legit. You can see it alreaady from this description. Patches
should be somehow logically related. Now it's "dump of stuff that I've
done recently". Not a nice thing to review in any sense of the word...


> Best Regards
> Christophe

/Jarkko

> 
> Christophe Ricard (12):
>   tpm/st33zp24/i2c: Drop two useless checks in ACPI probe path
>   tpm/st33zp24/spi: Drop two useless checks in ACPI probe path
>   tpm: Add include guards in tpm.h
>   tpm/st33zp24: Remove unneeded tpm_reg in get_burstcount
>   tpm: Add tpm_set_vendordata and tpm_get_vendordata
>   devicetree: Add infineon to vendor-prefix.txt
>   devicetree: Add Trusted Computing Group to vendor-prefix.txt
>   tpm/tpm_tis: Split tpm_tis driver into a core and TCG TIS compliant
>     phy
>   tpm/tpm_tis: Rework interrupt management for phy compatibility
>   tpm/tpm_tis_spi: Add support for spi phy
>   tpm: Add check_data handle to tpm_class_ops in order to check data
>     integrity
>   tpm/tpm_tis_i2c: Add support for i2c phy
> 
>  .../bindings/security/tpm/tpm_tis_i2c.txt          |  30 +
>  .../bindings/security/tpm/tpm_tis_spi.txt          |  28 +
>  .../devicetree/bindings/vendor-prefixes.txt        |   2 +
>  drivers/char/tpm/Kconfig                           |  24 +-
>  drivers/char/tpm/Makefile                          |   4 +-
>  drivers/char/tpm/st33zp24/i2c.c                    |  13 +-
>  drivers/char/tpm/st33zp24/spi.c                    |  13 +-
>  drivers/char/tpm/st33zp24/st33zp24.c               |  36 +-
>  drivers/char/tpm/tpm-interface.c                   |  11 +-
>  drivers/char/tpm/tpm.h                             |  20 +-
>  drivers/char/tpm/tpm_ibmvtpm.c                     |   8 +-
>  drivers/char/tpm/tpm_tis.c                         | 803 ++-------------------
>  drivers/char/tpm/tpm_tis_core.c                    | 763 ++++++++++++++++++++
>  drivers/char/tpm/tpm_tis_core.h                    | 166 +++++
>  drivers/char/tpm/tpm_tis_i2c.c                     | 499 +++++++++++++
>  drivers/char/tpm/tpm_tis_spi.c                     | 279 +++++++
>  drivers/char/tpm/xen-tpmfront.c                    |  14 +-
>  include/linux/tpm.h                                |   5 +
>  18 files changed, 1908 insertions(+), 810 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/security/tpm/tpm_tis_i2c.txt
>  create mode 100644 Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt
>  create mode 100644 drivers/char/tpm/tpm_tis_core.c
>  create mode 100644 drivers/char/tpm/tpm_tis_core.h
>  create mode 100644 drivers/char/tpm/tpm_tis_i2c.c
>  create mode 100644 drivers/char/tpm/tpm_tis_spi.c
> 
> -- 
> 2.5.0
> 

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