[PATCH v3 2/4] Documentation: bindings: mfd: cros ec: document vbc EC property
lee.jones at linaro.org
Tue Sep 22 17:34:01 PDT 2015
On Mon, 21 Sep 2015, Emilio López wrote:
> 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 at collabora.co.uk>
> Patch is new in v3, split from 3/4
> Documentation/devicetree/bindings/mfd/cros-ec.txt | 4 ++++
> 1 file changed, 4 insertions(+)
> diff --git a/Documentation/devicetree/bindings/mfd/cros-ec.txt b/Documentation/devicetree/bindings/mfd/cros-ec.txt
> index 1777916..136e0c2 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.
Is there no way to check for this at runtime?
> Example for I2C:
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