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

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Message-Id: <20220316095433.20225-3-singh.kuldeep87k@gmail.com>
Date:   Wed, 16 Mar 2022 15:24:31 +0530
From:   Kuldeep Singh <singh.kuldeep87k@...il.com>
To:     Marc Zyngier <marc.zyngier@....com>,
        Mark Rutland <mark.rutland@....com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org
Subject: [PATCH 2/3] dt-bindings: timer: Document arm,cortex-a7-timer for arch timer

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@...il.com>
---
 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