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Use this property to extract the restart reason from IMEM, which is updated by XBL. Populate the watchdog's bootstatus sysFS entry with this information, when the system reboots due to a watchdog timeout. Describe this property for the IPQ5424 watchdog device and extend support to other targets subsequently. Reviewed-by: Rob Herring (Arm) Signed-off-by: Kathiravan Thirumoorthy --- Changes in v7: - Picked up the R-b tag Changes in v6: - Update the 'sram' property to point to the SRAM region Changes in v5: - Rename the property 'qcom,imem' to 'sram' Changes in v4: - New patch --- Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml index 9f861045b71e8316ae88f8078a86043a6d04def8..3ead00da3cd6ffa0f6102179565723d4ab6c2929 100644 --- a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml @@ -84,6 +84,12 @@ properties: minItems: 1 maxItems: 5 + sram: + maxItems: 1 + description: + A reference to an region residing in IMEM(on-chip SRAM), which contains + the system restart reason value populated by the bootloader. + required: - compatible - reg -- 2.34.1