[PATCH 03/10] dt-bindings: interrupt-controllers: add description of SIC1 and SIC2

Marc Zyngier marc.zyngier at arm.com
Fri Nov 20 10:02:09 PST 2015

On 20/11/15 17:52, Vladimir Zapolskiy wrote:
> Hi Rob,
> On 20.11.2015 18:58, Rob Herring wrote:
>> On Fri, Nov 20, 2015 at 03:28:38AM +0200, Vladimir Zapolskiy wrote:
>>> NXP LPC32xx has three interrupt controllers, namely root Main
>>> Interrupt Controller (MIC) and two supplementary Sub Interrupt
>>> Controllers (SIC1 and SIC2), four interrupt outputs from SIC1 and SIC2
>>> are connected to MIC.
>>> Also the change describes two additional optional properties:
>>> * interrupt-controller-name - human readable name of an interrupt
>>>   controller,
>> Why? compatible is human readable. If you don't like that, then put the 
>> string in the driver.
> in runtime I'd like to differentiate various IRQ chips by name. Here for
> example I have one compatible "*-sic" and two actual IRQ chips SIC1 and
> SIC2. If I read /proc/interrupts or /sys/kernel/debug/irq_domain_mapping
> I would prefer to visualize interrupts from SIC1 and SIC2.
> I understand that this property is not hardware specific, but there are
> plenty of similar properties like "label" etc. Probably renaming of the
> property may help?

You can always generate the name based on the probing order or the address.


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

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