Add support in cros_ec.c to handle EC host command protocol v3.
For v3+, probe for maximum shared protocol version and max
request, response, and passthrough sizes. For now, this will
always fall back to v2, since there is no bus-specific code
for handling proto v3 packets.
Signed-off-by: NStephen Barber <smbarber@chromium.org>
Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: NGwendal Grignou <gwendal@chromium.org>
Tested-by: NGwendal Grignou <gwendal@chromium.org>
Tested-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NOlof Johansson <olof@lixom.net>
Signed-off-by: NLee Jones <lee.jones@linaro.org>