Subject: [PATCH v2 3/4] arm: dts: lpc32xx: reparent SIC1 and SIC2 interrupts from MIC

From: [email-masked] (Sylvain Lemieux)
Date: Mon, 25 Apr 2016 12:05:01 -0400

Hi Vladimir,

On Mon, 2016-04-25 at 04:00 +0300, Vladimir Zapolskiy wrote:
> The change adds separate device nodes for SIC1 and SIC2 interrupt
> controllers and reparents all defined SIC1 and SIC2 interrupt
> producers to the correspondent interrupt controller, this is needed to
> perform switching to a new LPC32xx MIC/SIC interrupt controller driver.
> 
> Signed-off-by: Vladimir Zapolskiy <[email-masked]>
> ---
> Changes from v1 to v2:
> * squashed two step change in lpc32xx.dtsi - new irqchip driver can be
>   used (i.e. board boots with access to userspace) with old DTS file,
>   so there is no need to fix DTS firstly and then switch to a new driver,
> * removed "interrupt-controller-name" and "wakeup-sources" properties
>   from all interrupt controllers,
> * removed outdated comment.
> 
>  arch/arm/boot/dts/lpc32xx.dtsi | 58 +++++++++++++++++++++++++++++-------------
>  1 file changed, 41 insertions(+), 17 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/lpc32xx.dtsi b/arch/arm/boot/dts/lpc32xx.dtsi
> index 73c4746..4570ddc 100644
> --- a/arch/arm/boot/dts/lpc32xx.dtsi
> +++ b/arch/arm/boot/dts/lpc32xx.dtsi
> @@ -92,7 +92,8 @@

...
>  
> -			/*
> -			 * MIC Interrupt controller includes:
> -			 *   MIC @40008000
> -			 *   SIC1 @4000C000
> -			 *   SIC2 @40010000
> -			 */
>  			mic: interrupt-controller at 40008000 {
>  				compatible = "nxp,lpc3220-mic";
>  				interrupt-controller;
> @@ -327,6 +326,28 @@

I think your are missing one change in your patch,
the mic register range should be 0x4000, not 0xC000.

Everything else is OK.

>  				#interrupt-cells = <2>;
>  			};
>  
> +			sic1: interrupt-controller at 4000c000 {
> +				compatible = "nxp,lpc3220-sic";
> +				reg = <0x4000c000 0x4000>;
> +				interrupt-controller;
> +				#interrupt-cells = <2>;
> +
> +				interrupt-parent = <&mic>;
> +				interrupts = <0 IRQ_TYPE_LEVEL_LOW>,
> +					     <30 IRQ_TYPE_LEVEL_LOW>;
> +				};
> +
> +			sic2: interrupt-controller at 40010000 {
> +				compatible = "nxp,lpc3220-sic";
> +				reg = <0x40010000 0x4000>;
> +				interrupt-controller;
> +				#interrupt-cells = <2>;
> +
> +				interrupt-parent = <&mic>;
> +				interrupts = <1 IRQ_TYPE_LEVEL_LOW>,
> +					     <31 IRQ_TYPE_LEVEL_LOW>;
> +			};
> +
...

Sylvain