dt-bindings: soc: samsung: exynos-pmu: add reboot-mode

ExynosAutov9 gained a reboot-mode node, so document the property to fix
warning:

  exynosautov9-sadk.dtb: system-controller@10460000: 'reboot-mode' does not match any of the regexes: 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220706160257.27579-3-krzysztof.kozlowski@linaro.org

diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
index 1835ca0..13bb8df 100644 (file)
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
@@ -74,6 +74,12 @@ properties:
       Must be identical to the that of the parent interrupt controller.
     const: 3
 
+  reboot-mode:
+    $ref: /schemas/power/reset/syscon-reboot-mode.yaml
+    type: object
+    description:
+      Reboot mode to alter bootloader behavior for the next boot
+
   syscon-poweroff:
     $ref: /schemas/power/reset/syscon-poweroff.yaml#
     type: object