Re: [PATCH v2 06/17] arm64: dts: arm: Fix GIC compatible names

[Marc Zyngier <maz@kernel.org>]

On 2020-05-07 12:24, Andre Przywara wrote:
> The GIC DT binding only allows a certain combination of DT compatible
> strings, mostly just consisting of one name.
> 
> Drop the somewhat awkward combination of multiple names using different
> "cortex" based strings, in the fastmodel .dts files.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
>  arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi | 2 +-
>  arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts       | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi
> b/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi
> index 15fe81738e94..61a1750fcdd6 100644
> --- a/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi
> +++ b/arch/arm64/boot/dts/arm/foundation-v8-gicv2.dtsi
> @@ -6,7 +6,7 @@
> 
>  / {
>  	gic: interrupt-controller@2c001000 {
> -		compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
> +		compatible = "arm,cortex-a15-gic";
>  		#interrupt-cells = <3>;
>  		#address-cells = <2>;
>  		interrupt-controller;
> diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
> b/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
> index c5d15cbd8cf6..f86f6451411f 100644
> --- a/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
> +++ b/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
> @@ -95,7 +95,7 @@
>  	};
> 
>  	gic: interrupt-controller@2c001000 {
> -		compatible = "arm,cortex-a15-gic", "arm,cortex-a9-gic";
> +		compatible = "arm,cortex-a15-gic";
>  		#interrupt-cells = <3>;
>  		#address-cells = <0>;
>  		interrupt-controller;

Since you've now allowed "arm,gic-400", why don't you use that
in combination with "arm,cortex-a15-gic"? Having GIC-400 makes
a lot more sense, as these two models are ARMv8 models.

Thanks,

         M.
-- 
Jazz is not dead. It just smells funny...