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-rw-r--r--Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/cpus.yaml11
-rw-r--r--Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt2
-rw-r--r--Documentation/devicetree/bindings/arm/l2c2x0.yaml45
-rw-r--r--Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml5
-rw-r--r--Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/pmu.yaml41
-rw-r--r--Documentation/devicetree/bindings/arm/psci.yaml5
-rw-r--r--Documentation/devicetree/bindings/arm/renesas,prr.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/samsung/pmu.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/samsung/samsung-secure-firmware.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/socionext/cache-uniphier.txt60
-rw-r--r--Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml102
-rw-r--r--Documentation/devicetree/bindings/arm/socionext/uniphier.txt47
-rw-r--r--Documentation/devicetree/bindings/arm/socionext/uniphier.yaml61
-rw-r--r--Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml2
18 files changed, 249 insertions, 146 deletions
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml b/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml
index e4131fa42b26..572381306681 100644
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml
+++ b/Documentation/devicetree/bindings/arm/altera/socfpga-clk-manager.yaml
@@ -21,6 +21,8 @@ properties:
required:
- compatible
+additionalProperties: false
+
examples:
- |
clkmgr@ffd04000 {
diff --git a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
index 853d7d2b56f5..66213bd95e6e 100644
--- a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
@@ -43,6 +43,8 @@ required:
- compatible
- reg
+additionalProperties: false
+
examples:
- |
ao-secure@140 {
diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index 0d5b61056b10..470e003b7f8a 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -123,11 +123,18 @@ properties:
- arm,cortex-a12
- arm,cortex-a15
- arm,cortex-a17
+ - arm,cortex-a32
+ - arm,cortex-a34
+ - arm,cortex-a35
- arm,cortex-a53
- arm,cortex-a55
- arm,cortex-a57
+ - arm,cortex-a65
- arm,cortex-a72
- arm,cortex-a73
+ - arm,cortex-a75
+ - arm,cortex-a76
+ - arm,cortex-a77
- arm,cortex-m0
- arm,cortex-m0+
- arm,cortex-m1
@@ -136,6 +143,8 @@ properties:
- arm,cortex-r4
- arm,cortex-r5
- arm,cortex-r7
+ - arm,neoverse-e1
+ - arm,neoverse-n1
- brcm,brahma-b15
- brcm,brahma-b53
- brcm,vulcan
@@ -155,6 +164,8 @@ properties:
- nvidia,tegra194-carmel
- qcom,krait
- qcom,kryo
+ - qcom,kryo260
+ - qcom,kryo280
- qcom,kryo385
- qcom,kryo485
- qcom,scorpion
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index e07735a8c2c7..8cac6fafaab0 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -164,7 +164,7 @@ Required properties:
- compatible: should be:
"fsl,imx8qxp-sc-key"
followed by "fsl,imx-sc-key";
-- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt
+- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml
Example (imx8qxp):
-------------
diff --git a/Documentation/devicetree/bindings/arm/l2c2x0.yaml b/Documentation/devicetree/bindings/arm/l2c2x0.yaml
index 913a8cd8b2c0..5d1d50eea26e 100644
--- a/Documentation/devicetree/bindings/arm/l2c2x0.yaml
+++ b/Documentation/devicetree/bindings/arm/l2c2x0.yaml
@@ -29,27 +29,30 @@ allOf:
properties:
compatible:
- enum:
- - arm,pl310-cache
- - arm,l220-cache
- - arm,l210-cache
- # DEPRECATED by "brcm,bcm11351-a2-pl310-cache"
- - bcm,bcm11351-a2-pl310-cache
- # For Broadcom bcm11351 chipset where an
- # offset needs to be added to the address before passing down to the L2
- # cache controller
- - brcm,bcm11351-a2-pl310-cache
- # Marvell Controller designed to be
- # compatible with the ARM one, with system cache mode (meaning
- # maintenance operations on L1 are broadcasted to the L2 and L2
- # performs the same operation).
- - marvell,aurora-system-cache
- # Marvell Controller designed to be
- # compatible with the ARM one with outer cache mode.
- - marvell,aurora-outer-cache
- # Marvell Tauros3 cache controller, compatible
- # with arm,pl310-cache controller.
- - marvell,tauros3-cache
+ oneOf:
+ - enum:
+ - arm,pl310-cache
+ - arm,l220-cache
+ - arm,l210-cache
+ # DEPRECATED by "brcm,bcm11351-a2-pl310-cache"
+ - bcm,bcm11351-a2-pl310-cache
+ # For Broadcom bcm11351 chipset where an
+ # offset needs to be added to the address before passing down to the L2
+ # cache controller
+ - brcm,bcm11351-a2-pl310-cache
+ # Marvell Controller designed to be
+ # compatible with the ARM one, with system cache mode (meaning
+ # maintenance operations on L1 are broadcasted to the L2 and L2
+ # performs the same operation).
+ - marvell,aurora-system-cache
+ # Marvell Controller designed to be
+ # compatible with the ARM one with outer cache mode.
+ - marvell,aurora-outer-cache
+ - items:
+ # Marvell Tauros3 cache controller, compatible
+ # with arm,pl310-cache controller.
+ - const: marvell,tauros3-cache
+ - const: arm,pl310-cache
cache-level:
const: 2
diff --git a/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml b/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
index 818dfe6de512..3235ec9e9bad 100644
--- a/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
+++ b/Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml
@@ -28,8 +28,11 @@ properties:
items:
- enum:
- mrvl,mmp2-brownstone
+ - olpc,xo-1.75
- const: mrvl,mmp2
- description: MMP3 based boards
items:
- - const: mrvl,mmp3
+ - enum:
+ - dell,wyse-ariel
+ - const: marvell,mmp3
...
diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
index 79902f470e4b..c3a8604dfa80 100644
--- a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
+++ b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.yaml
@@ -43,6 +43,8 @@ required:
- reg-names
- interrupts
+additionalProperties: false
+
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index 52ae094ce330..97df36d301c9 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -20,27 +20,36 @@ properties:
items:
- enum:
- apm,potenza-pmu
- - arm,armv8-pmuv3
- - arm,cortex-a73-pmu
- - arm,cortex-a72-pmu
- - arm,cortex-a57-pmu
- - arm,cortex-a53-pmu
- - arm,cortex-a35-pmu
- - arm,cortex-a17-pmu
- - arm,cortex-a15-pmu
- - arm,cortex-a12-pmu
- - arm,cortex-a9-pmu
- - arm,cortex-a8-pmu
- - arm,cortex-a7-pmu
- - arm,cortex-a5-pmu
- - arm,arm11mpcore-pmu
- - arm,arm1176-pmu
+ - arm,armv8-pmuv3 # Only for s/w models
- arm,arm1136-pmu
+ - arm,arm1176-pmu
+ - arm,arm11mpcore-pmu
+ - arm,cortex-a5-pmu
+ - arm,cortex-a7-pmu
+ - arm,cortex-a8-pmu
+ - arm,cortex-a9-pmu
+ - arm,cortex-a12-pmu
+ - arm,cortex-a15-pmu
+ - arm,cortex-a17-pmu
+ - arm,cortex-a32-pmu
+ - arm,cortex-a34-pmu
+ - arm,cortex-a35-pmu
+ - arm,cortex-a53-pmu
+ - arm,cortex-a55-pmu
+ - arm,cortex-a57-pmu
+ - arm,cortex-a65-pmu
+ - arm,cortex-a72-pmu
+ - arm,cortex-a73-pmu
+ - arm,cortex-a75-pmu
+ - arm,cortex-a76-pmu
+ - arm,cortex-a77-pmu
+ - arm,neoverse-e1-pmu
+ - arm,neoverse-n1-pmu
- brcm,vulcan-pmu
- cavium,thunder-pmu
+ - qcom,krait-pmu
- qcom,scorpion-pmu
- qcom,scorpion-mp-pmu
- - qcom,krait-pmu
interrupts:
# Don't know how many CPUs, so no constraints to specify
diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
index 5e66934455bb..9247b58c26fc 100644
--- a/Documentation/devicetree/bindings/arm/psci.yaml
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -32,6 +32,9 @@ description: |+
http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf
properties:
+ $nodename:
+ const: psci
+
compatible:
oneOf:
- description:
@@ -141,6 +144,8 @@ allOf:
- cpu_off
- cpu_on
+additionalProperties: false
+
examples:
- |+
diff --git a/Documentation/devicetree/bindings/arm/renesas,prr.yaml b/Documentation/devicetree/bindings/arm/renesas,prr.yaml
index 7f8d17f33983..dd087643a9f8 100644
--- a/Documentation/devicetree/bindings/arm/renesas,prr.yaml
+++ b/Documentation/devicetree/bindings/arm/renesas,prr.yaml
@@ -27,6 +27,8 @@ required:
- compatible
- reg
+additionalProperties: false
+
examples:
- |
prr: chipid@ff000044 {
diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml
index afcd70803c12..0425d333b50d 100644
--- a/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/exynos-chipid.yaml
@@ -30,6 +30,8 @@ required:
- compatible
- reg
+additionalProperties: false
+
examples:
- |
chipid@10000000 {
diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.yaml b/Documentation/devicetree/bindings/arm/samsung/pmu.yaml
index 73b56fc5bf58..c9651892710e 100644
--- a/Documentation/devicetree/bindings/arm/samsung/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/pmu.yaml
@@ -89,6 +89,8 @@ required:
- clock-names
- clocks
+additionalProperties: false
+
examples:
- |
#include <dt-bindings/clock/exynos5250.h>
diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-secure-firmware.yaml b/Documentation/devicetree/bindings/arm/samsung/samsung-secure-firmware.yaml
index 51d23b6f8a94..3d9abad3c749 100644
--- a/Documentation/devicetree/bindings/arm/samsung/samsung-secure-firmware.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/samsung-secure-firmware.yaml
@@ -23,6 +23,8 @@ required:
- compatible
- reg
+additionalProperties: false
+
examples:
- |
firmware@203f000 {
diff --git a/Documentation/devicetree/bindings/arm/socionext/cache-uniphier.txt b/Documentation/devicetree/bindings/arm/socionext/cache-uniphier.txt
deleted file mode 100644
index d27a646f48a9..000000000000
--- a/Documentation/devicetree/bindings/arm/socionext/cache-uniphier.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-UniPhier outer cache controller
-
-UniPhier SoCs are integrated with a full-custom outer cache controller system.
-All of them have a level 2 cache controller, and some have a level 3 cache
-controller as well.
-
-Required properties:
-- compatible: should be "socionext,uniphier-system-cache"
-- reg: offsets and lengths of the register sets for the device. It should
- contain 3 regions: control register, revision register, operation register,
- in this order.
-- cache-unified: specifies the cache is a unified cache.
-- cache-size: specifies the size in bytes of the cache
-- cache-sets: specifies the number of associativity sets of the cache
-- cache-line-size: specifies the line size in bytes
-- cache-level: specifies the level in the cache hierarchy. The value should
- be 2 for L2 cache, 3 for L3 cache, etc.
-
-Optional properties:
-- next-level-cache: phandle to the next level cache if present. The next level
- cache should be also compatible with "socionext,uniphier-system-cache".
-
-The L2 cache must exist to use the L3 cache; the cache hierarchy must be
-indicated correctly with "next-level-cache" properties.
-
-Example 1 (system with L2):
- l2: l2-cache@500c0000 {
- compatible = "socionext,uniphier-system-cache";
- reg = <0x500c0000 0x2000>, <0x503c0100 0x4>,
- <0x506c0000 0x400>;
- cache-unified;
- cache-size = <0x80000>;
- cache-sets = <256>;
- cache-line-size = <128>;
- cache-level = <2>;
- };
-
-Example 2 (system with L2 and L3):
- l2: l2-cache@500c0000 {
- compatible = "socionext,uniphier-system-cache";
- reg = <0x500c0000 0x2000>, <0x503c0100 0x8>,
- <0x506c0000 0x400>;
- cache-unified;
- cache-size = <0x200000>;
- cache-sets = <512>;
- cache-line-size = <128>;
- cache-level = <2>;
- next-level-cache = <&l3>;
- };
-
- l3: l3-cache@500c8000 {
- compatible = "socionext,uniphier-system-cache";
- reg = <0x500c8000 0x2000>, <0x503c8100 0x8>,
- <0x506c8000 0x400>;
- cache-unified;
- cache-size = <0x400000>;
- cache-sets = <512>;
- cache-line-size = <256>;
- cache-level = <3>;
- };
diff --git a/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml b/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml
new file mode 100644
index 000000000000..2e765bb3e6f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/socionext/socionext,uniphier-system-cache.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: UniPhier outer cache controller
+
+description: |
+ UniPhier ARM 32-bit SoCs are integrated with a full-custom outer cache
+ controller system. All of them have a level 2 cache controller, and some
+ have a level 3 cache controller as well.
+
+maintainers:
+ - Masahiro Yamada <yamada.masahiro@socionext.com>
+
+properties:
+ compatible:
+ const: socionext,uniphier-system-cache
+
+ reg:
+ description: |
+ should contain 3 regions: control register, revision register,
+ operation register, in this order.
+ minItems: 3
+ maxItems: 3
+
+ interrupts:
+ description: |
+ Interrupts can be used to notify the completion of cache operations.
+ The number of interrupts should match to the number of CPU cores.
+ The specified interrupts correspond to CPU0, CPU1, ... in this order.
+ minItems: 1
+ maxItems: 4
+
+ cache-unified: true
+
+ cache-size: true
+
+ cache-sets: true
+
+ cache-line-size: true
+
+ cache-level:
+ minimum: 2
+ maximum: 3
+
+ next-level-cache: true
+
+allOf:
+ - $ref: /schemas/cache-controller.yaml#
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - cache-unified
+ - cache-size
+ - cache-sets
+ - cache-line-size
+ - cache-level
+
+examples:
+ - |
+ // System with L2.
+ cache-controller@500c0000 {
+ compatible = "socionext,uniphier-system-cache";
+ reg = <0x500c0000 0x2000>, <0x503c0100 0x4>, <0x506c0000 0x400>;
+ interrupts = <0 174 4>, <0 175 4>, <0 190 4>, <0 191 4>;
+ cache-unified;
+ cache-size = <0x140000>;
+ cache-sets = <512>;
+ cache-line-size = <128>;
+ cache-level = <2>;
+ };
+ - |
+ // System with L2 and L3.
+ // L2 should specify the next level cache by 'next-level-cache'.
+ l2: cache-controller@500c0000 {
+ compatible = "socionext,uniphier-system-cache";
+ reg = <0x500c0000 0x2000>, <0x503c0100 0x8>, <0x506c0000 0x400>;
+ interrupts = <0 190 4>, <0 191 4>;
+ cache-unified;
+ cache-size = <0x200000>;
+ cache-sets = <512>;
+ cache-line-size = <128>;
+ cache-level = <2>;
+ next-level-cache = <&l3>;
+ };
+
+ l3: cache-controller@500c8000 {
+ compatible = "socionext,uniphier-system-cache";
+ reg = <0x500c8000 0x2000>, <0x503c8100 0x8>, <0x506c8000 0x400>;
+ interrupts = <0 174 4>, <0 175 4>;
+ cache-unified;
+ cache-size = <0x200000>;
+ cache-sets = <512>;
+ cache-line-size = <256>;
+ cache-level = <3>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/socionext/uniphier.txt b/Documentation/devicetree/bindings/arm/socionext/uniphier.txt
deleted file mode 100644
index b3ed1033740e..000000000000
--- a/Documentation/devicetree/bindings/arm/socionext/uniphier.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-Socionext UniPhier SoC family
------------------------------
-
-Required properties in the root node:
- - compatible: should contain board and SoC compatible strings
-
-SoC and board compatible strings:
- (sorted chronologically)
-
- - LD4 SoC: "socionext,uniphier-ld4"
- - Reference Board: "socionext,uniphier-ld4-ref"
-
- - Pro4 SoC: "socionext,uniphier-pro4"
- - Reference Board: "socionext,uniphier-pro4-ref"
- - Ace Board: "socionext,uniphier-pro4-ace"
- - Sanji Board: "socionext,uniphier-pro4-sanji"
-
- - sLD8 SoC: "socionext,uniphier-sld8"
- - Reference Board: "socionext,uniphier-sld8-ref"
-
- - PXs2 SoC: "socionext,uniphier-pxs2"
- - Gentil Board: "socionext,uniphier-pxs2-gentil"
- - Vodka Board: "socionext,uniphier-pxs2-vodka"
-
- - LD6b SoC: "socionext,uniphier-ld6b"
- - Reference Board: "socionext,uniphier-ld6b-ref"
-
- - LD11 SoC: "socionext,uniphier-ld11"
- - Reference Board: "socionext,uniphier-ld11-ref"
- - Global Board: "socionext,uniphier-ld11-global"
-
- - LD20 SoC: "socionext,uniphier-ld20"
- - Reference Board: "socionext,uniphier-ld20-ref"
- - Global Board: "socionext,uniphier-ld20-global"
-
- - PXs3 SoC: "socionext,uniphier-pxs3"
- - Reference Board: "socionext,uniphier-pxs3-ref"
-
-Example:
-
-/dts-v1/;
-
-/ {
- compatible = "socionext,uniphier-ld20-ref", "socionext,uniphier-ld20";
-
- ...
-};
diff --git a/Documentation/devicetree/bindings/arm/socionext/uniphier.yaml b/Documentation/devicetree/bindings/arm/socionext/uniphier.yaml
new file mode 100644
index 000000000000..65ad6d8a3c99
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/socionext/uniphier.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/socionext/uniphier.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Socionext UniPhier platform device tree bindings
+
+maintainers:
+ - Masahiro Yamada <yamada.masahiro@socionext.com>
+
+properties:
+ $nodename:
+ const: /
+ compatible:
+ oneOf:
+ - description: LD4 SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-ld4-ref
+ - const: socionext,uniphier-ld4
+ - description: Pro4 SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-pro4-ace
+ - socionext,uniphier-pro4-ref
+ - socionext,uniphier-pro4-sanji
+ - const: socionext,uniphier-pro4
+ - description: sLD8 SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-sld8-ref
+ - const: socionext,uniphier-sld8
+ - description: PXs2 SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-pxs2-gentil
+ - socionext,uniphier-pxs2-vodka
+ - const: socionext,uniphier-pxs2
+ - description: LD6b SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-ld6b-ref
+ - const: socionext,uniphier-ld6b
+ - description: LD11 SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-ld11-global
+ - socionext,uniphier-ld11-ref
+ - const: socionext,uniphier-ld11
+ - description: LD20 SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-ld20-global
+ - socionext,uniphier-ld20-ref
+ - const: socionext,uniphier-ld20
+ - description: PXs3 SoC boards
+ items:
+ - enum:
+ - socionext,uniphier-pxs3-ref
+ - const: socionext,uniphier-pxs3
diff --git a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
index 0dedf94c8578..baff80197d5a 100644
--- a/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/st,stm32-syscon.yaml
@@ -29,6 +29,8 @@ required:
- reg
- clocks
+additionalProperties: false
+
examples:
- |
#include <dt-bindings/clock/stm32mp1-clks.h>