Re: [PATCH v2 0/2] watchdog: realtek-otto: add fallback compatible
From: Rob Herring
Date: Thu May 14 2026 - 12:10:27 EST
On Tue, May 12, 2026 at 10:48:52PM +0200, Sander Vanheule wrote:
> Like for the GPIO hardware of the Realtek Otto platform, add a fallback
> compatible for the watchdog hardware.
>
> For backward compatibility, the binding will still allow current
> single-compatible devicetrees to work, but new devicetrees, including
> new compatibles, should use a two-component compatible.
>
> This series serves to address comments regarding the device compatibles
> for the patches adding RTL9607C watchdog support [1].
>
> [1] https://lore.kernel.org/lkml/20260509163101.722793-1-adilov@xxxxxxxxxxx/
You misunderstood the discussion (though some came after this). The
fallback should be one of the existing compatibles (the oldest one), so
there are no driver changes needed for the OS. Creating a new fallback
completely misses that point.
Rob