[PATCH v6 0/4] st33zp24 new architecture proposal and st33zp24 spi driver

From: Christophe Ricard <christophe.ricard-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: peterhuewe-Mmb7MZpHnFY@public.gmane.org
Cc: ashley-fm2HMyfA2y6tG0bUXCXiUA@public.gmane.org,
	tpmdd-yWjUBOtONefk1uMJSBkQmQ@public.gmane.org,
	tpmdd-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	christophe-h.ricard-qxv4g6HH51o@public.gmane.org,
	jean-luc.blanc-qxv4g6HH51o@public.gmane.org,
	benoit.houyere-qxv4g6HH51o@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org,
	jarkko.sakkinen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org
Subject: [PATCH v6 0/4] st33zp24 new architecture proposal and st33zp24 spi driver
Date: Sun,  1 Feb 2015 21:58:27 +0100	[thread overview]
Message-ID: <1422824311-12352-1-git-send-email-christophe-h.ricard@st.com> (raw)

Hi,

The following patchset:
- propose a new architecture allowing to share a core st33zp24 data management
layer with different phy (i2c & spi). For st33zp24 both phy have a proprietary transport
protocol. Both are relying on the TCG TIS protocol. At the end, it simplifies the maintenance.
- Add an spi phy allowing to support st33zp24 using with an SPI bus.

The complete solution got tested in polling and interrupt mode successfully with i2c & spi phy.
This patchset applies on top of Peter's tree https://github.com/PeterHuewe/linux-tpmdd.git for-james branch
on top of:
d4989d9f693b9502f9288da5db279c2f8c2e50be tpm/tpm_tis: Add missing ifdef CONFIG_ACPI for pnp_acpi_device

I confirm also Jarkko Sakkinen's changes are working with this product with both phy's.

- v2 takes into account feedbacks from Jason Gunthorpe.
- v3 is reduced to 4 patches as 6 out of 10 got accepted for 3.20. Also compare to v2:
        * Fix build issue with patch v2 04/10 "Replace access to io_lpcpd from struct st33zp24_platform_data to tpm_stm_dev"
        * Fix link issue with patch v2 08/10 "Split tpm_i2c_tpm_st33 in 2 layers (core + phy)" when building as a module.
        The symbols wasn't exported in st33zp24.c.
        * Add missing MODULE_LICENSE in patch v2 09/10 "Add st33zp24 spi phy"
        * Fix node example in dts spi documentation in patch v2 10/10 "Add dts documentation for st33zp24 spi phy"
        * Fix typo on Jason Gunthorpe first name. Sorry for that :(...
        * Change contact email address as tpmsupport-qxv4g6HH51o@public.gmane.org is no more valid
- v4 adds missing module_license in st33zp24
- v5 includes as best as possible PeterHuewe comments.
- v6 is more explicit about the spi buffer size and remove their buffer (tx_buf/rx_buf) dynamic allocation

Best Regards
Christophe

Christophe Ricard (4):
  tpm/tpm_i2c_stm_st33: Replace access to io_lpcpd from struct
    st33zp24_platform_data to tpm_stm_dev
  tpm/tpm_i2c_stm_st33: Split tpm_i2c_tpm_st33 in 2 layers (core + phy)
  tpm/st33zp24/spi: Add st33zp24 spi phy
  tpm/st33zp24/dts/st33zp24-spi: Add dts documentation for st33zp24 spi
    phy

 .../bindings/security/tpm/st33zp24-spi.txt         |  34 +
 drivers/char/tpm/Kconfig                           |  11 +-
 drivers/char/tpm/Makefile                          |   2 +-
 drivers/char/tpm/st33zp24/Kconfig                  |  30 +
 drivers/char/tpm/st33zp24/Makefile                 |  12 +
 drivers/char/tpm/st33zp24/i2c.c                    | 276 +++++++
 drivers/char/tpm/st33zp24/spi.c                    | 392 +++++++++
 drivers/char/tpm/st33zp24/st33zp24.c               | 688 ++++++++++++++++
 drivers/char/tpm/st33zp24/st33zp24.h               |  37 +
 drivers/char/tpm/tpm_i2c_stm_st33.c                | 911 ---------------------
 include/linux/platform_data/st33zp24.h             |  28 +
 include/linux/platform_data/tpm_stm_st33.h         |  39 -
 12 files changed, 1499 insertions(+), 961 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/security/tpm/st33zp24-spi.txt
 create mode 100644 drivers/char/tpm/st33zp24/Kconfig
 create mode 100644 drivers/char/tpm/st33zp24/Makefile
 create mode 100644 drivers/char/tpm/st33zp24/i2c.c
 create mode 100644 drivers/char/tpm/st33zp24/spi.c
 create mode 100644 drivers/char/tpm/st33zp24/st33zp24.c
 create mode 100644 drivers/char/tpm/st33zp24/st33zp24.h
 delete mode 100644 drivers/char/tpm/tpm_i2c_stm_st33.c
 create mode 100644 include/linux/platform_data/st33zp24.h
 delete mode 100644 include/linux/platform_data/tpm_stm_st33.h

-- 
2.1.0

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