Re: How to get node of root interrupt controller

From: Himanshu Chauhan <himanshu_at_thechauhan.dev>
Date: Thu, 21 Nov 2024 16:30:50 UTC 
On 11/21/24 19:36, Mitchell Horne wrote:

>
>
> On 11/21/24 00:43, Himanshu Chauhan wrote:
>> Hi,
>>
>> I am rewriting the RISCV IMSIC patch in light of the new changes
>> regarding
>> the secondary interrupt controllres. The API's and symbols have
>> changed since
>> I wrote the initial patch.
>>
>> IMSIC's parent is intc (for which I want to get node). Earlier, I was
>> doing
>> the following:
>>
>>          iparent =
>> OF_xref_from_node(ofw_bus_get_node(intr_irq_root_dev));
>>          cell = IRQ_EXTERNAL_SUPERVISOR;
>>          irq = ofw_bus_map_intr(dev, iparent, 1, &cell);
>>
>> There isn't intr_irq_root_dev now. So, how do I get the intc node
>> during imsic_attach?
>>
>
> With the new API it should be:
>
> rootdev = intr_irq_root_device(INTR_ROOT_IRQ);


Thanks Mitchell.

Regards

Himanshu


>
> Best,
> Mitchell