This patch series adds support for the the H1 secure microcontroller running cr50 firmware found on various recent Chromebooks. This driver is necessary to boot into a ChromeOS userspace environment. It implements support for several functions, including TPM-like functionality, and supports SPI and I2C interfaces. The last time this was series sent looks to be [1]. I've looked over the patches and review comments and tried to address any feedback that Andrey didn't address (really minor things like newlines). The first three patches add a couple pre-requisite core changes so that the drivers can be merged. The last two patches add some sysfs attributes and make symlinks so that ChromeOS userspace works. [1] https://lkml.kernel.org/r/1469757314-116169-1-git-send-email-apronin@xxxxxxxxxxxx Andrey Pronin (7): tpm: block messages while suspended tpm_tis_core: add optional max xfer size check tpm_tis_spi: add max xfer size dt-bindings: tpm: document properties for cr50 tpm: add driver for cr50 on SPI tpm: add sysfs attributes for tpm2 tpm: add legacy sysfs attributes for tpm2 Duncan Laurie (1): tpm: Add driver for cr50 on I2C .../bindings/security/tpm/cr50_spi.txt | 19 + drivers/char/tpm/Kconfig | 26 + drivers/char/tpm/Makefile | 3 + drivers/char/tpm/cr50.c | 39 + drivers/char/tpm/cr50.h | 30 + drivers/char/tpm/cr50_i2c.c | 704 ++++++++++++++++++ drivers/char/tpm/cr50_spi.c | 450 +++++++++++ drivers/char/tpm/tpm-chip.c | 4 +- drivers/char/tpm/tpm-interface.c | 16 +- drivers/char/tpm/tpm-sysfs.c | 138 +++- drivers/char/tpm/tpm.h | 29 +- drivers/char/tpm/tpm_tis_core.c | 9 +- drivers/char/tpm/tpm_tis_core.h | 1 + drivers/char/tpm/tpm_tis_spi.c | 1 + include/linux/tpm.h | 2 + 15 files changed, 1455 insertions(+), 16 deletions(-) create mode 100644 Documentation/devicetree/bindings/security/tpm/cr50_spi.txt create mode 100644 drivers/char/tpm/cr50.c create mode 100644 drivers/char/tpm/cr50.h create mode 100644 drivers/char/tpm/cr50_i2c.c create mode 100644 drivers/char/tpm/cr50_spi.c base-commit: f2c7c76c5d0a443053e94adb9f0918fa2fb85c3a -- Sent by a computer through tubes
