linux-kernel - [PATCH] dt-bindings: timer: Add QEMU compatible strings

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Message-Id: <20220916132959.1910374-1-jean-philippe@linaro.org>
Date:   Fri, 16 Sep 2022 14:30:00 +0100
From:   Jean-Philippe Brucker <jean-philippe@...aro.org>
To:     maz@...nel.org, mark.rutland@....com
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Jean-Philippe Brucker <jean-philippe@...aro.org>
Subject: [PATCH] dt-bindings: timer: Add QEMU compatible strings

QEMU uses both "arm,armv8-timer" and "arm,armv7-timer" as compatible
string. Although it is unlikely that any guest relies on this, we can't
be certain of that. Therefore, add these to the schema. Clean up the
compatible list a little while at it.

Signed-off-by: Jean-Philippe Brucker <jean-philippe@...aro.org>
---
 .../devicetree/bindings/timer/arm,arch_timer.yaml   | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
index df8ce87fd54b..fa03fc0fe320 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
@@ -22,16 +22,17 @@ properties:
   compatible:
     oneOf:
       - items:
-          - enum:
-              - arm,cortex-a15-timer
-          - enum:
-              - arm,armv7-timer
+          - const: arm,cortex-a15-timer
+          - const: arm,armv7-timer
       - items:
           - enum:
               - arm,armv7-timer
-      - items:
-          - enum:
               - arm,armv8-timer
+      - description: QEMU uses both compatible strings.
+          This format is deprecated.
+        items:
+          - const: arm,armv8-timer
+          - const: arm,armv7-timer
 
   interrupts:
     minItems: 1
-- 
2.37.3