This patch set enables TPM2 protocol and provides drivers for FIFO and CRB interfaces. In addition life-cycle model is somewhat improved (but not yet fully fixed) for TPM device drivers. There's still work to do in ref counting and locking but this patch set takes (I believe) the correct interm steps towards right direction. TPM2 sysfs attributes are placed to misc dev instead of binding them to the platform device as misc dev represents the device to the user space. TPM1 uses invalid place for the sysfs attributes. Major changes since v1: - Improved struct tpm_chip life-cycle by taking advantage of devres API. - Refined sysfs attributes as simple key-values thereby not repeating mistakes in TPM1 sysfs attributes. - Documented functions in tpm-chip.c and tpm2-cmd.c. - Documented sysfs attributes. Major changes since v2: - Lots of fixes in calling order in device drivers (thanks to Jason Gunthorpe for pointing these out!). - Attach sysfs attributes to the misc device because it represents TPM device to the user space. Known opens: - I'm still pending to test the FIFO (tpm_tis) driver. Now I should have system to actually get this done but I'm right now at the LinuxCon. - struct tpm_chip would need proper ref counting and locking applied everywhere but this has been existing problem before this patch set. It is a large change that I'm willing to work on after getting this merged first. - It might be that in some cases PPI interface might be attached to a wrong PPI interface if ACPI tree shows up having two PPI interface. I think the way PPI interface is grabbed is invalid. Instead it should be passed an ACPI handle to the device and it should take PPI interface under that ACPi handle. I can add a fix to do this in v4 if everyone else agrees. Jarkko Sakkinen (5): tpm: merge duplicate transmit_cmd() functions tpm: two-phase chip management functions tpm: TPM 2.0 commands tpm: TPM 2.0 sysfs attributes tpm: TPM 2.0 CRB Interface Will Arthur (1): tpm: TPM 2.0 FIFO Interface Documentation/ABI/stable/sysfs-class-tpm2 | 72 ++++ drivers/char/tpm/Kconfig | 9 + drivers/char/tpm/Makefile | 3 +- drivers/char/tpm/tpm-chip.c | 209 ++++++++++++ drivers/char/tpm/tpm-dev.c | 7 +- drivers/char/tpm/tpm-interface.c | 225 +++---------- drivers/char/tpm/tpm-sysfs.c | 23 +- drivers/char/tpm/tpm.h | 106 +++++- drivers/char/tpm/tpm2-cmd.c | 543 ++++++++++++++++++++++++++++++ drivers/char/tpm/tpm2-sysfs.c | 314 +++++++++++++++++ drivers/char/tpm/tpm_atmel.c | 11 +- drivers/char/tpm/tpm_crb.c | 329 ++++++++++++++++++ drivers/char/tpm/tpm_i2c_atmel.c | 33 +- drivers/char/tpm/tpm_i2c_infineon.c | 37 +- drivers/char/tpm/tpm_i2c_nuvoton.c | 44 +-- drivers/char/tpm/tpm_i2c_stm_st33.c | 22 +- drivers/char/tpm/tpm_ibmvtpm.c | 17 +- drivers/char/tpm/tpm_infineon.c | 13 +- drivers/char/tpm/tpm_nsc.c | 11 +- drivers/char/tpm/tpm_tis.c | 160 +++++---- drivers/char/tpm/xen-tpmfront.c | 14 +- 21 files changed, 1813 insertions(+), 389 deletions(-) create mode 100644 Documentation/ABI/stable/sysfs-class-tpm2 create mode 100644 drivers/char/tpm/tpm-chip.c create mode 100644 drivers/char/tpm/tpm2-cmd.c create mode 100644 drivers/char/tpm/tpm2-sysfs.c create mode 100644 drivers/char/tpm/tpm_crb.c -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
