linux-kernel - Re: [PATCH 21/22] ARM: dt: GIC: add extended SPI specifier

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Message-ID: <20240829185240.GA914553-robh@kernel.org>
Date: Thu, 29 Aug 2024 13:52:40 -0500
From: Rob Herring <robh@...nel.org>
To: Nikunj Kela <quic_nkela@...cinc.com>
Cc: andersson@...nel.org, konradybcio@...nel.org, krzk+dt@...nel.org,
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Subject: Re: [PATCH 21/22] ARM: dt: GIC: add extended SPI specifier

On Wed, Aug 28, 2024 at 01:37:20PM -0700, Nikunj Kela wrote:
> Add interrupt specifier for extended SPI interrupts.

What's an "extended SPI"? Is this a GIC spec thing? If so, what version?

> 
> Qualcomm SA8255p platform uses extended SPI for SCMI 'a2p' doorbells.
> 
> Signed-off-by: Nikunj Kela <quic_nkela@...cinc.com>
> ---
>  include/dt-bindings/interrupt-controller/arm-gic.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/dt-bindings/interrupt-controller/arm-gic.h b/include/dt-bindings/interrupt-controller/arm-gic.h
> index 35b6f69b7db6..9c06248446b7 100644
> --- a/include/dt-bindings/interrupt-controller/arm-gic.h
> +++ b/include/dt-bindings/interrupt-controller/arm-gic.h
> @@ -12,6 +12,7 @@
>  
>  #define GIC_SPI 0
>  #define GIC_PPI 1
> +#define GIC_ESPI 2
>  
>  /*
>   * Interrupt specifier cell 2.
> -- 
> 2.34.1
>