[PATCH 1/2] dt-bindings: samsung: exynos-pmu: Restrict children with unevaluatedProperties

[PATCH 1/2] dt-bindings: samsung: exynos-pmu: Restrict children with unevaluatedProperties

[Krzysztof Kozlowski]

Each schema for a child node should end with either additionalProperties
or unevaluatedProperties, so add missing one making the schema tighter.
Defining 'type: object' is on the other hand not necessary when other
schema is referenced.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
 .../devicetree/bindings/soc/samsung/exynos-pmu.yaml         | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
index 76ce7e98c10f..d124f3ae9fbd 100644
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
@@ -94,19 +94,19 @@ properties:
 
   reboot-mode:
     $ref: /schemas/power/reset/syscon-reboot-mode.yaml
-    type: object
+    unevaluatedProperties: false
     description:
       Reboot mode to alter bootloader behavior for the next boot
 
   syscon-poweroff:
     $ref: /schemas/power/reset/syscon-poweroff.yaml#
-    type: object
+    unevaluatedProperties: false
     description:
       Node for power off method
 
   syscon-reboot:
     $ref: /schemas/power/reset/syscon-reboot.yaml#
-    type: object
+    unevaluatedProperties: false
     description:
       Node for reboot method
 
-- 
2.53.0

[PATCH 2/2] dt-bindings: samsung: exynos-pmu: Narrow allowed reboot modes

[Krzysztof Kozlowski]

syscon-reboot-mode schema allows arbitrary "mode-.* properties but only
a subset actually makes sense and is valid.  Provide negative look-ahead
pattern to disallow any modes not supported by the device, which
tightens the binding.

Most of Android-based Exynos devices share the bootloader or its parts,
thus reboot modes are most likely the same, however only a few upstream
DTS define them, so add restrictions only for these.

Google GS101 has on the other hand quite different bootloader with many
known reboot modes.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
 .../bindings/soc/samsung/exynos-pmu.yaml      | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
index d124f3ae9fbd..5bd39876e3b3 100644
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
@@ -176,6 +176,20 @@ allOf:
       properties:
         dp-phy: false
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - samsung,exynos7-pmu
+    then:
+      properties:
+        reboot-mode:
+          patternProperties:
+            # Negative look-ahead to disallow unsupported modes. The '$' has to be
+            # part of lookahead group to work, instead of trailing outside of ().
+            "^mode-(?!(bootloader$|download$|fastboot$|recovery$))": false
+
   - if:
       properties:
         compatible:
@@ -183,6 +197,13 @@ allOf:
             enum:
               - google,gs101-pmu
     then:
+      properties:
+        reboot-mode:
+          patternProperties:
+            # Negative look-ahead to disallow unsupported modes. The '$' has to be
+            # part of lookahead group to work, instead of trailing outside of ().
+            "^mode-(?!(bootloader$|charge$|dm-verity-device-corrupted$|fastboot$|reboot-ab-update$|recovery$)|rescue$|shutdown-thermal$|shutdown-thermal-battery$)": false
+
       required:
         - google,pmu-intr-gen-syscon
     else:
-- 
2.53.0

Re: [PATCH 1/2] dt-bindings: samsung: exynos-pmu: Restrict children with unevaluatedProperties

[Rob Herring (Arm)]

On Wed, 01 Jul 2026 12:57:32 +0200, Krzysztof Kozlowski wrote:
> Each schema for a child node should end with either additionalProperties
> or unevaluatedProperties, so add missing one making the schema tighter.
> Defining 'type: object' is on the other hand not necessary when other
> schema is referenced.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---
>  .../devicetree/bindings/soc/samsung/exynos-pmu.yaml         | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 

Acked-by: Rob Herring (Arm) <robh@kernel.org>

Re: [PATCH 2/2] dt-bindings: samsung: exynos-pmu: Narrow allowed reboot modes

[Rob Herring (Arm)]

On Wed, 01 Jul 2026 12:57:33 +0200, Krzysztof Kozlowski wrote:
> syscon-reboot-mode schema allows arbitrary "mode-.* properties but only
> a subset actually makes sense and is valid.  Provide negative look-ahead
> pattern to disallow any modes not supported by the device, which
> tightens the binding.
> 
> Most of Android-based Exynos devices share the bootloader or its parts,
> thus reboot modes are most likely the same, however only a few upstream
> DTS define them, so add restrictions only for these.
> 
> Google GS101 has on the other hand quite different bootloader with many
> known reboot modes.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> ---
>  .../bindings/soc/samsung/exynos-pmu.yaml      | 21 +++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 

Acked-by: Rob Herring (Arm) <robh@kernel.org>