linux-kernel - [PATCH] regulators: dt-bindings: gpio-regulator: Fix "gpios-states" and "states" array bounds

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Date: Fri, 23 Feb 2024 17:07:51 -0700
From: Rob Herring <robh@...nel.org>
To: Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH] regulators: dt-bindings: gpio-regulator: Fix "gpios-states" and "states" array bounds

The minimum number of array entries for "gpios-states" was not not
specified, so the the default is the same as the max (8).

The minimum is also missing from "states", and the maximum is also wrong
as it should be 2^(# of GPIO lines). Since there can be 1 to 8 GPIOs,
the "states" range should be 2 to 256.

Signed-off-by: Rob Herring <robh@...nel.org>
---
 .../devicetree/bindings/regulator/gpio-regulator.yaml         | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml b/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml
index f4c1f36e52e9..a34e85754658 100644
--- a/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml
@@ -47,6 +47,7 @@ properties:
         1: HIGH
       Default is LOW if nothing else is specified.
     $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
     maxItems: 8
     items:
       enum: [0, 1]
@@ -57,7 +58,8 @@ properties:
       regulator and matching GPIO configurations to achieve them. If there are
       no states in the "states" array, use a fixed regulator instead.
     $ref: /schemas/types.yaml#/definitions/uint32-matrix
-    maxItems: 8
+    minItems: 2
+    maxItems: 256
     items:
       items:
         - description: Voltage in microvolts
-- 
2.43.0