[PATCH 1/2] dt-bindings: firmware: google,gs101-acpm-ipc: document Exynos850 compatible

[Alexey Klimov]

The Exynos850 SoC incorporates an APM co-processor. Communication with
this hardware block is done using the ACPM protocol, which handles IPC
messages for clocks, power, thermal management and PMIC control.

Dedicated compatible string is required for the Exynos850 because
its firmware utilizes a different initialisation data base offset
(0x7000) compared to the existing GS101 implementation (0xa000).

Signed-off-by: Alexey Klimov <alexey.klimov@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
index e68f9c3ca5e2..511c873280fe 100644
--- a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
+++ b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml
@@ -22,7 +22,9 @@ description: |
 
 properties:
   compatible:
-    const: google,gs101-acpm-ipc
+    enum:
+      - google,gs101-acpm-ipc
+      - samsung,exynos850-acpm-ipc
 
   "#clock-cells":
     const: 1

-- 
2.51.0