linux-kernel - [PATCH 2/4] dt-bindings: mfd: syscon: allow two reg regions for gs101-pmu

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Message-Id: <20241213-contrib-pg-cpu-hotplug-suspend2ram-fixes-v1-v1-2-c72978f63713@linaro.org>
Date: Fri, 13 Dec 2024 16:44:39 +0000
From: Peter Griffin <peter.griffin@...aro.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Lee Jones <lee@...nel.org>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, 
 tudor.ambarus@...aro.org, andre.draszik@...aro.org, willmcvicker@...gle.com, 
 kernel-team@...roid.com, Peter Griffin <peter.griffin@...aro.org>
Subject: [PATCH 2/4] dt-bindings: mfd: syscon: allow two reg regions for
 gs101-pmu

To avoid dtschema warnings allow google,gs101-pmu to have
two reg regions.

Signed-off-by: Peter Griffin <peter.griffin@...aro.org>
---
I don't really like this patch, but also didn't want to submit the series
with a dtschema warning ;-)

Possibly a better solution is when Robs patch
`mfd: syscon: Allow syscon nodes without a "syscon" compatible` [1]

gets updated with a v2, we could remove syscon compatible from
gs101.dtsi (an ABI issue). If I understood his patch correctly,
it would mean this yaml update would then no longer be required.

Let me know your thoughts

[1] https://lore.kernel.org/lkml/20241211-syscon-fixes-v1-0-b5ac8c219e96@kernel.org/T/#m5ad1ed5c69f693d2a5cc54342a87fbdf3df756d2
---
 Documentation/devicetree/bindings/mfd/syscon-common.yaml | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/syscon-common.yaml b/Documentation/devicetree/bindings/mfd/syscon-common.yaml
index 451cbad467a3..9cd9739d5e97 100644
--- a/Documentation/devicetree/bindings/mfd/syscon-common.yaml
+++ b/Documentation/devicetree/bindings/mfd/syscon-common.yaml
@@ -59,6 +59,16 @@ allOf:
         compatible:
           minItems: 3
           maxItems: 5
+  - if:
+      properties:
+        compatible:
+          contains:
+            const:
+              - google,gs101-pmu
+  then:
+    properties:
+      reg:
+        maxItems: 2
 
 additionalProperties: true
 

-- 
2.47.1.613.gc27f4b7a9f-goog