> The point of this is to allow a WDT that has been enabled by the bootloader > to survive these events: > > - deferred probing of the WDT device, which can lead the clock driver > to disable the WDT clock until the WDT is re-probed, giving it a > blind spot > - probe failure in the WDT driver So, I was trying to test this with the watchdog driver and my patch[1]. To make the watchdog_register_device() call fail, I cleared the ident struct: priv->wdev.info = NULL; //&rwdt_ident; Sadly, the watchdog does not fire after the driver bailed out of probe. clk_summary rightfully says that the clock is neither prepared nor enabled. Did I miss something? I will try some more tomorrow. Uli, how did you test the ignore_unused feature? [1] https://patchwork.kernel.org/patch/11101573/ "[PATCH v2] watchdog: renesas_wdt: support handover from bootloader"
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