Re: [PATCH v2 1/5] ARM: dts: Cygnus: Fixed iProc PCIe controller properties

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On 12/7/21 5:49 AM, Rob Herring wrote:
> On Mon, Dec 6, 2021 at 12:52 PM Florian Fainelli <f.fainelli@xxxxxxxxx> wrote:
>>
>> Rename the msi controller unit name to 'msi' to avoid collisions
>> with the 'msi-controller' boolean property and add the missing
>> 'interrupt-controller' property which is necessary. We also need to
>> re-arrange the 'ranges' property to show the two cells as being separate
>> instead of combined since the DT checker is not able to differentiate
>> otherwise.
>>
>> Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
>> ---
>>  arch/arm/boot/dts/bcm-cygnus.dtsi | 14 ++++++++------
>>  1 file changed, 8 insertions(+), 6 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi b/arch/arm/boot/dts/bcm-cygnus.dtsi
>> index 8ecb7861ce10..ea19d1b56400 100644
>> --- a/arch/arm/boot/dts/bcm-cygnus.dtsi
>> +++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
>> @@ -263,6 +263,7 @@ pcie0: pcie@18012000 {
>>                         compatible = "brcm,iproc-pcie";
>>                         reg = <0x18012000 0x1000>;
>>
>> +                       interrupt-controller;
> 
> How is this a fix? This doesn't even work before v5.16 with commit
> 041284181226 ("of/irq: Allow matching of an interrupt-map local to an
> interrupt controller").

What is the path forward? I suppose I could make the
interrupt-controller property not required for this controller but then
the default interrupt-controller schema is not terribly happy about
seeing an interrupt-map/interrupt-map-mask properties without
interrupt-controller.
-- 
Florian



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