Re: [PATCH v3 0/5] Introduce "non-pixel" sub node within iris video node

Krzysztof Kozlowski
2025-10-09T10:45:39Z

On 09/10/2025 19:40, Vikash Garodia wrote:
>
> On 10/9/2025 2:41 PM, Krzysztof Kozlowski wrote:
>> On 09/10/2025 17:38, Bryan O'Donoghue wrote:
>>> On 09/10/2025 02:04, Krzysztof Kozlowski wrote:
>>>>> The iommu description for this platform basically lacks the data that
>>>>> _should_ be there -> FUNCTION_ID.
>>>> No. The index tells that already.
>>>
>>> Hmm.
>>>>> The rule is that the DT should really describe the hardware right ?
>>>> It already does. Same as I wrote on IRC, DT already has all the
>>>> information. Entry 0 has function ID-foo. Entry 1 has function ID-bar.
>>>> Entry 2 has function ID-bar or whatever.
>>>
>>> That's the part I don't believe is true its a 1:Many relationship
>>> between FUNCTION_ID:SIDs
>>>
>>> Let me check the docs...
>>>
>>> Here's the example I gave on IRC for lore
>>>
>>> SID 0x1940 maps to AC_VM_HLOS (Linux)
>>> SID 0x1941 maps to AC_VM_CP_BITSTREAM - protected bitstream
>>> SID 0x1945 maps to AC_WM_CP_BITSTREAM
>>>
>>
>> I responded to this on IRC... Nothing proves here that 1:many cannot be
>> done.
>
> Kaanapali already has 1:Many relationship for FUNCTION_ID:SIDs.

Sun is a star. How is that related? I am not going to duplicate
arguments from IRC, especially to that pointless argument. Read again
discussion on IRC.

Best regards,
Krzysztof