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Date:   Mon, 11 Jun 2018 18:03:33 -0700
From:   Ray Jui <ray.jui@...adcom.com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 3/6] arm: dts: Change PCIe INTx mapping for Cygnus



On 6/11/2018 5:55 PM, Florian Fainelli wrote:
> On June 11, 2018 5:27:20 PM PDT, Ray Jui <ray.jui@...adcom.com> wrote:
>>
>>
>> On 6/11/2018 3:36 PM, Florian Fainelli wrote:
>>> On 05/29/2018 02:58 PM, Ray Jui wrote:
>>>> Change the PCIe INTx mapping to model the 4 INTx interrupts in the
>>>> IRQ domain of the iProc PCIe controller itself
>>>>
>>>> Signed-off-by: Ray Jui <ray.jui@...adcom.com>
>>>> ---
>>>>    arch/arm/boot/dts/bcm-cygnus.dtsi | 18 ++++++++++++++----
>>>>    1 file changed, 14 insertions(+), 4 deletions(-)
>>>>
>>>> diff --git a/arch/arm/boot/dts/bcm-cygnus.dtsi
>> b/arch/arm/boot/dts/bcm-cygnus.dtsi
>>>> index 699fdf9..6de21ef 100644
>>>> --- a/arch/arm/boot/dts/bcm-cygnus.dtsi
>>>> +++ b/arch/arm/boot/dts/bcm-cygnus.dtsi
>>>> @@ -254,9 +254,14 @@
>>>>    			compatible = "brcm,iproc-pcie";
>>>>    			reg = <0x18012000 0x1000>;
>>>>    
>>>> +			interrupt-controller;
>>>>    			#interrupt-cells = <1>;
>>>> -			interrupt-map-mask = <0 0 0 0>;
>>>> -			interrupt-map = <0 0 0 0 &gic GIC_SPI 100 IRQ_TYPE_NONE>;
>>>> +			interrupt-map-mask = <0 0 0 7>;
>>>> +			interrupt-map = <0 0 0 1 &pcie0 1>,
>>>> +					<0 0 0 2 &pcie0 2>,
>>>> +					<0 0 0 3 &pcie0 3>,
>>>> +					<0 0 0 4 &pcie0 4>;
>>>> +			interrupts = <GIC_SPI 100 IRQ_TYPE_NONE>;
>>>
>>> You would want to fix those IRQ_TYPE_NONE values as well because
>> since
>>> commit 83a86fbb5b56b5eed8a476cc3fe214077d7c4f49 ("irqchip/gic: Loudly
>>> complain about the use of IRQ_TYPE_NONE") this is going to create
>> some
>>> nice warnings on boot.
>>>
>>> I am about to send fixes for NSP and HR2 since that's what I have
>> access
>>> to at the moment, but it would be good if you could send updates to
>> the
>>> Cygnus and NS2 DTS files?
>>>
>>> Thanks
>>>
>>
>> Okay. Thanks for letting me know. How do you want this to be done for
>> Cygnus and NS2?
>>
>> I guess I should have the fix patches to DTS done and sent out first,
>> and then rebase this INTx patch series against the patches with the
>> fix.
>>
>> Does that make sense to you?
> 
> Yes it does. As soon as v4.18-rc1 is tagged I will send the Device Tree fixes pull request, if I can have yours for Cygnus and NS2 in the next few days I could lump those together. Then we can either base your changes off v4.18-rc2 or a later tag that already has the DTS fixes.
> 

Okay that sounds good. I'll try to get those fixes out for you within 
the next few days.

Thanks!

Ray

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