Documentation: bindings: Add support for Amlogic GXBB SCPI protocol

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
(decoupled from the generic scpi binding)
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

diff --git a/Documentation/devicetree/bindings/arm/amlogic,scpi.txt b/Documentation/devicetree/bindings/arm/amlogic,scpi.txt
new file mode 100644 (file)
index 0000000..7b9a861
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/amlogic,scpi.txt
@@ -0,0 +1,20 @@
+System Control and Power Interface (SCPI) Message Protocol
+(in addition to the standard binding in [0])
+----------------------------------------------------------
+Required properties
+
+- compatible : should be "amlogic,meson-gxbb-scpi"
+
+AMLOGIC SRAM and Shared Memory for SCPI
+------------------------------------
+
+Required properties:
+- compatible : should be "amlogic,meson-gxbb-sram"
+
+Each sub-node represents the reserved area for SCPI.
+
+Required sub-node properties:
+- compatible : should be "amlogic,meson-gxbb-scp-shmem" for SRAM based shared
+               memory on Amlogic GXBB SoC.
+
+[0] Documentation/devicetree/bindings/arm/arm,scpi.txt