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Added a check to ensure the requested timeout does not exceed the hardware's maximum supported value. This prevents register overflow and ensures watchdog reliability. So, added a check in qcom_wdt_start() to ensure the requested timeout does not exceed the hardware-supported maximum value. If the requested value exceeds the maximum value, then the timeout is clamped at maximum value. The timeout is first converted to watchdog ticks and then compared against QCOM_WDT_MAX_TIMEOUT. This helps prevent misconfiguration and potential watchdog misbehavior due to overflow. QCOM_WDT_MAX_TIMEOUT is set to 0xFFFFF, as Qualcomm SoCs typically use 20 bits to store bark/bite timeout values. This work builds upon the previous submission: https://lore.kernel.org/u-boot/20250527124926.128413-1-balaji.selvanathan@oss.qualcomm.com/ Signed-off-by: Gopinath Sekar <gopinath.sekar@oss.qualcomm.com> Reviewed-by: Stefan Roese <sr@denx.de> Link: https://patch.msgid.link/20250625094607.1348494-1-gopinath.sekar@oss.qualcomm.com Signed-off-by: Casey Connolly <casey.connolly@linaro.org>