linux-kernel - Re: [PATCH v2 06/25] arm64: arch_timer: implement support for interrupt-names

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Date:   Tue, 16 Feb 2021 23:33:32 +0900
From:   Hector Martin <marcan@...can.st>
To:     Tony Lindgren <tony@...mide.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Marc Zyngier <maz@...nel.org>, Rob Herring <robh@...nel.org>,
        Arnd Bergmann <arnd@...nel.org>,
        Olof Johansson <olof@...om.net>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Mark Kettenis <mark.kettenis@...all.nl>,
        Mohamed Mediouni <mohamed.mediouni@...amail.com>,
        Stan Skowronek <stan@...ellium.com>,
        Alexander Graf <graf@...zon.com>,
        Will Deacon <will@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 06/25] arm64: arch_timer: implement support for
 interrupt-names

On 16/02/2021 03.23, Tony Lindgren wrote:
> * Hector Martin <marcan@...can.st> [210215 12:18]:
>> This allows the devicetree to correctly represent the available set of
>> timers, which varies from device to device, without the need for fake
>> dummy interrupts for unavailable slots.
> 
> I like the idea of using interrupt-names property for mapping timers :)
> 
> Similar approach might help other SoCs too. And clocksources never really
> had similar issues.

Yeah, there are some SoCs using dummy IRQs right now for this reason, so 
this should help with those too (though it's too late to introduce it 
now into those DTs without breaking backwards-compat with older kernels, 
sadly).

> With Marc's comments addressed, please feel free to add:
> 
> Reviewed-by: Tony Lindgren <tony@...mide.com>

Thank you!

-- 
Hector Martin (marcan@...can.st)
Public Key: https://mrcn.st/pub