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authorEmilio López <emilio.lopez@collabora.co.uk>2015-09-21 16:38:21 +0300
committerLee Jones <lee.jones@linaro.org>2015-10-30 20:18:51 +0300
commit5b855ff3f7d3f95c8c06e690d61ee3e0eddaec90 (patch)
treedaef85617dd6e703652e63f4df19803055166f28
parent3dab794f50451fa910d6a8d4d002c4ecda3cc1f5 (diff)
downloadlinux-5b855ff3f7d3f95c8c06e690d61ee3e0eddaec90.tar.xz
bindings: mfd: cros ec: Document vbc EC property
Some EC implementations include a small nvram space used to store verified boot context data. This boolean property lets us indicate whether this space is available or not on a specific EC implementation. Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk> Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--Documentation/devicetree/bindings/mfd/cros-ec.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mfd/cros-ec.txt b/Documentation/devicetree/bindings/mfd/cros-ec.txt
index 1777916e9e28..136e0c2da44d 100644
--- a/Documentation/devicetree/bindings/mfd/cros-ec.txt
+++ b/Documentation/devicetree/bindings/mfd/cros-ec.txt
@@ -34,6 +34,10 @@ Required properties (LPC):
- compatible: "google,cros-ec-lpc"
- reg: List of (IO address, size) pairs defining the interface uses
+Optional properties (all):
+- google,has-vbc-nvram: Some implementations of the EC include a small
+ nvram space used to store verified boot context data. This boolean flag
+ is used to specify whether this nvram is present or not.
Example for I2C: