From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: [PATCH 0/8] tpm: Add driver for cr50 Date: Thu, 13 Jun 2019 11:09:23 -0700 Message-ID: <20190613180931.65445-1-swboyd@chromium.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Peter Huewe , Jarkko Sakkinen Cc: linux-kernel@vger.kernel.org, Jason Gunthorpe , Arnd Bergmann , Greg Kroah-Hartman , linux-integrity@vger.kernel.org, Andrey Pronin , devicetree@vger.kernel.org, Duncan Laurie , Guenter Roeck List-Id: devicetree@vger.kernel.org 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@chromium.org 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