[PATCH v5 06/13] dt-bindings: arm: stm32: add required #clock-cells property
From: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Date: 2025-08-22 14:38:39
Also in:
dri-devel, linux-devicetree, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
On STM32MP25 SoC, the syscfg peripheral provides a clock to the display subsystem through a multiplexer. Since it only provides a single clock, the cell value is 0. Doing so allows the clock consumers to reach the peripheral and gate the clock accordingly. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Yannick Fertre <yannick.fertre@foss.st.com> Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com> --- .../bindings/arm/stm32/st,stm32-syscon.yaml | 31 +++++++++++++++------- 1 file changed, 21 insertions(+), 10 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
index ed97652c84922813e94b1818c07fe8714891c089..95d2319afe235fa86974d80f89c9deeae2275232 100644
--- a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml@@ -36,20 +36,31 @@ properties: clocks: maxItems: 1 + "#clock-cells": + const: 0 + required: - compatible - reg -if: - properties: - compatible: - contains: - enum: - - st,stm32mp157-syscfg - - st,stm32f4-gcan -then: - required: - - clocks +allOf: + - if: + properties: + compatible: + contains: + enum: + - st,stm32mp157-syscfg + - st,stm32f4-gcan + then: + required: + - clocks + - if: + properties: + compatible: + const: st,stm32mp25-syscfg + then: + required: + - "#clock-cells" additionalProperties: false
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2.25.1