linux-kernel - [PATCH 2/2] dt-bindings: vexpress-sysreg: Allow for no child nodes

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Date:   Mon, 13 Jun 2022 11:18:08 -0600
From:   Rob Herring <robh@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andre Przywara <andre.przywara@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] dt-bindings: vexpress-sysreg: Allow for no child nodes

It is valid for arm,vexpress-sysreg to have no child nodes when either
the deprecated binding without child nodes is used or a platform
has no GPIOs. If there are no child nodes, then "#address-cells" and
"#size-cells" should not be required. However, "reg" should be present
in all cases, so let's add it now.

Cc: Andre Przywara <andre.przywara@....com>
Signed-off-by: Rob Herring <robh@...nel.org>
---
 Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml b/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml
index 2d2afada5ad1..f04db802a732 100644
--- a/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml
+++ b/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml
@@ -74,8 +74,7 @@ patternProperties:
 
 required:
   - compatible
-  - "#address-cells"
-  - "#size-cells"
+  - reg
 
 examples:
   - |
-- 
2.34.1