Re: [PATCH 2/3] ARM: dts: bcm2711: Update SPI nodes compatible strings

[Lukas Wunner]

On Wed, Jun 03, 2020 at 08:46:54PM -0700, Florian Fainelli wrote:
> The BCM2711 SoC features 5 SPI controllers which all share the same
> interrupt line, the SPI driver needs to support interrupt sharing,
> therefore use the chip specific compatible string to help with that.

You're saying above that the 5 controllers all share the interrupt
but below you're only changing the compatible string of 4 controllers.

So I assume spi0 still has its own interrupt and only the additional
4 controllers present on the BCM2711/BCM7211 share their interrupt?

Thanks,

Lukas

> 
> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
> ---
>  arch/arm/boot/dts/bcm2711.dtsi | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/bcm2711.dtsi b/arch/arm/boot/dts/bcm2711.dtsi
> index a91cf68e3c4c..9a9ea67fbc2d 100644
> --- a/arch/arm/boot/dts/bcm2711.dtsi
> +++ b/arch/arm/boot/dts/bcm2711.dtsi
> @@ -152,7 +152,7 @@
>  		};
>  
>  		spi3: spi@7e204600 {
> -			compatible = "brcm,bcm2835-spi";
> +			compatible = "brcm,bcm2711-spi", "brcm,bcm2835-spi";
>  			reg = <0x7e204600 0x0200>;
>  			interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
>  			clocks = <&clocks BCM2835_CLOCK_VPU>;
> @@ -162,7 +162,7 @@
>  		};
>  
>  		spi4: spi@7e204800 {
> -			compatible = "brcm,bcm2835-spi";
> +			compatible = "brcm,bcm2711-spi", "brcm,bcm2835-spi";
>  			reg = <0x7e204800 0x0200>;
>  			interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
>  			clocks = <&clocks BCM2835_CLOCK_VPU>;
> @@ -172,7 +172,7 @@
>  		};
>  
>  		spi5: spi@7e204a00 {
> -			compatible = "brcm,bcm2835-spi";
> +			compatible = "brcm,bcm2711-spi", "brcm,bcm2835-spi";
>  			reg = <0x7e204a00 0x0200>;
>  			interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
>  			clocks = <&clocks BCM2835_CLOCK_VPU>;
> @@ -182,7 +182,7 @@
>  		};
>  
>  		spi6: spi@7e204c00 {
> -			compatible = "brcm,bcm2835-spi";
> +			compatible = "brcm,bcm2711-spi", "brcm,bcm2835-spi";
>  			reg = <0x7e204c00 0x0200>;
>  			interrupts = <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>;
>  			clocks = <&clocks BCM2835_CLOCK_VPU>;
> -- 
> 2.17.1
>