Re: [PATCH v2] dt-bindings: timer: arm,arch_timer: Allow dual compatible string
From: Marc Zyngier
Date: Sun Sep 25 2022 - 10:52:55 EST
On Thu, 22 Sep 2022 12:11:50 -0400,
Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx> wrote:
>
> Since the Armv7 and Armv8 architected timers are compatible, it is valid
> to expose a devicetree node with compatible string "arm,armv8-timer"
> followed by "arm,armv7-timer". For example a 32-bit guest running on a
> 64-bit machine may look for the v7 string even though the hardware is v8.
> VMMs such as QEMU and kvmtool have been using this compatible string for
> some time. Clean up the compatible list a little and add the dual
> option.
>
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
M.
--
Without deviation from the norm, progress is not possible.