Re: [PATCH RFC 2/2] pci: create device tree node for selected devices

Frank Rowand
2022-09-16T23:21:00Z

On 9/13/22 02:03, Frank Rowand wrote:
> On 9/12/22 01:33, Frank Rowand wrote:
>> On 9/2/22 13:54, Rob Herring wrote:
>>> On Mon, Aug 29, 2022 at 02:43:37PM -0700, Lizhi Hou wrote:
>>>> The PCI endpoint device such as Xilinx Alveo PCI card maps the register
>>>> spaces from multiple hardware peripherals to its PCI BAR. Normally,
>>>> the PCI core discovers devices and BARs using the PCI enumeration process.
>>>> And the process does not provide a way to discover the hardware peripherals
>>>> been mapped to PCI BARs.
>>
>> < snip >
>>
>>>
>>> The above bits aren't really particular to PCI, so they probably
>>> belong in the DT core code. Frank will probably have thoughts on what
>>> this should look like.
>>
>> < snip >
>>
>> I will try to look through this patch series later today (Monday 9/12
>> USA time - I will not be in Dublin for the conferences this week.)
>>
>> -Frank
>
> I have collected nearly 500 emails on the history behind this patch and
> also another set of patch series that has been trying to achieve some
> somewhat similar functionality. Expect me to take a while to wade through
> all of this.

I'm still working at understanding the full picture of patch 2/2.

-Frank

>
> -Frank