[PATCH v3 0/4] platform/chrome: vboot context support

Emilio López emilio.lopez at collabora.co.uk
Mon Sep 21 06:38:19 PDT 2015

Hi everyone,

This series adds support for reading and writing the verified boot context
nvram space on the EC using the cros_ec sysfs interface.

The first patch improves is_visible() functionality, making it work
for binary attributes as well as normal ones. This is needed so the
sysfs group can be hidden when the EC doesn't offer any space for
the context.

The second patch documents the property used in the binding documents.
This used to live in the next patch on the previous versions of this series.

The third patch is the actual code implementing the interface to read
and write the context data.

The fourth patch adds the DT properties on peach boards which, judging by
the vendor tree, use the EC to store the verified boot context.

The series was tested on a peach pi and was found to work OK there. As
always, all comments and further tests are welcome :)


Emilio López (4):
  sysfs: Support is_visible() on binary attributes
  Documentation: bindings: mfd: cros ec: document vbc EC property
  platform/chrome: Support reading/writing the vboot context
  ARM: dts: Enable EC vboot context support on Peach boards

 Documentation/devicetree/bindings/mfd/cros-ec.txt |   4 +
 arch/arm/boot/dts/exynos5420-peach-pit.dts        |   1 +
 arch/arm/boot/dts/exynos5800-peach-pi.dts         |   1 +
 drivers/platform/chrome/Makefile                  |   3 +-
 drivers/platform/chrome/cros_ec_dev.c             |   1 +
 drivers/platform/chrome/cros_ec_vbc.c             | 137 ++++++++++++++++++++++
 fs/sysfs/group.c                                  |  17 ++-
 include/linux/mfd/cros_ec.h                       |   1 +
 include/linux/sysfs.h                             |  18 ++-
 9 files changed, 176 insertions(+), 7 deletions(-)
 create mode 100644 drivers/platform/chrome/cros_ec_vbc.c


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