From e131ca83dabc8bfb8c1d455d02bf2d7a7bc1198a Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 1 Jul 2026 12:57:33 +0200 Subject: [PATCH] dt-bindings: samsung: exynos-pmu: Narrow allowed reboot modes 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 Reviewed-by: Peter Griffin Acked-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260701105731.196618-4-krzysztof.kozlowski@oss.qualcomm.com Signed-off-by: Krzysztof Kozlowski --- .../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: