[RFC 11/37] soc: renesas: rcar-rst: Document generic compatible strings

[Fabrizio Castro]

>From now on, devices compatible with the generic compatible strings
documented by this commit don't need to modify the corresponding driver
anymore.

Signed-off-by: Fabrizio Castro <fabrizio.castro at bp.renesas.com>
Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram at bp.renesas.com>
---
 Documentation/devicetree/bindings/reset/renesas,rst.txt | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/reset/renesas,rst.txt b/Documentation/devicetree/bindings/reset/renesas,rst.txt
index a8014f3..2602a19 100644
--- a/Documentation/devicetree/bindings/reset/renesas,rst.txt
+++ b/Documentation/devicetree/bindings/reset/renesas,rst.txt
@@ -11,7 +11,10 @@ following functions:
 
 
 Required properties:
-  - compatible: Should be
+  - compatible: Should be a SoC specific string, followed by a generic
+		fallback compatible string when compatible with the generic
+		version.
+		The SoC specific compatible string should be:
 		  - "renesas,<soctype>-reset-wdt" for R-Car Gen1,
 		  - "renesas,<soctype>-rst" for R-Car Gen2 and Gen3, and RZ/G
 		Examples with soctypes are:
@@ -28,12 +31,16 @@ Required properties:
 		  - "renesas,r8a7796-rst" (R-Car M3-W)
 		  - "renesas,r8a77970-rst" (R-Car V3M)
 		  - "renesas,r8a77995-rst" (R-Car D3)
+		The generic compatible string should be:
+		  - "renesas,rcar-gen1-rst" for R-Car Gen1
+		  - "renesas,rcar-gen2-rst" for R-Car Gen2 and RZ/G
+		  - "renesas,rcar-gen3-rst" for R-Car Gen3
   - reg: Address start and address range for the device.
 
 
 Example:
 
 	rst: reset-controller at e6160000 {
-		compatible = "renesas,r8a7795-rst";
+		compatible = "renesas,r8a7795-rst", "renesas,rcar-gen3-rst";
 		reg = <0 0xe6160000 0 0x0200>;
 	};
-- 
2.7.4