[PATCH 2/3] dt-bindings: timer: Document arm,cortex-a7-timer for arch timer

[Kuldeep Singh]

Renesas RZ/N1D platform uses compatible "arm,cortex-a7-timer" in
conjugation with "arm,armv7-timer". Since, initial entry is not
documented, it start raising dtbs_check warnings.

['arm,cortex-a7-timer', 'arm,armv7-timer'] is too long
'arm,cortex-a7-timer' is not one of ['arm,armv7-timer', 'arm,armv8-timer']
'arm,cortex-a7-timer' is not one of ['arm,cortex-a15-timer']

In general, removing an existing entry is mostly devastating considering
backward compatibility. Therefore, document it.

Signed-off-by: Kuldeep Singh <singh.kuldeep87k@xxxxxxxxx>
---
 Documentation/devicetree/bindings/timer/arm,arch_timer.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
index ba2910f0a7b2..ea390e5df71d 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
@@ -26,6 +26,7 @@ properties:
           - arm,armv8-timer
       - items:
           - enum:
+              - arm,cortex-a7-timer
               - arm,cortex-a15-timer
           - const: arm,armv7-timer
 
-- 
2.25.1