linux-kernel - [PATCH 1/2] regulator: dt-bindings: gpio-regulator: Fix {gpios-,}states limits

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Date: Thu,  1 Feb 2024 16:58:41 +0100
From: Geert Uytterhoeven <geert+renesas@...der.be>
To: Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>
Cc: devicetree@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH 1/2] regulator: dt-bindings: gpio-regulator: Fix {gpios-,}states limits

make dtbs_check:

    arch/arm64/boot/dts/renesas/r8a77951-salvator-xs.dtb: regulator-vccq-sdhi0: Unevaluated properties are not allowed ('gpios-states', 'states' were unexpected)
	    from schema $id: http://devicetree.org/schemas/regulator/gpio-regulator.yaml#

The number of items in "gpios-states" must match the number of items in
"gpios", so their limits should be identical.

The number of items in "states" must lie within the range from zero up
to 2^{number of gpios}.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
The second issue did not cause any dtbs_check errors?
---
 .../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 f4c1f36e52e9c3d8..1cecf8faee5dc374 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: 0
+    maxItems: 256
     items:
       items:
         - description: Voltage in microvolts
-- 
2.34.1