Re: [PATCH] arm64: dts: exynos: gs101: add stable i2c aliases for gs101-oriole

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On 12/02/2024 13:38, André Draszik wrote:
> On Mon, 2024-02-12 at 13:07 +0100, Krzysztof Kozlowski wrote:
>> On 12/02/2024 12:52, André Draszik wrote:
>>> As I said above, we won't care if downstream changes again at that stage, so
>>> no, I wouldn't plan on changing again.
>>
>> Then I am lost. What stage are you thinking? What differs between now
>> and let's say 1 month for the GS101 which was released more than three
>> years ago?
> 
> The idea was to make the initial transition to using upstream easier,
> hence we added the same aliases as downstream (at the time).
> Given the transition is not happening right now, we might as well hold
> off with the aliases and add them later, with whatever downstream will
> be using at that time.

Hm ok, I just did not understand what are the criteria of choosing point
in time when you take the aliases from dowstream.

> 
> If in the future somebody downstream decides 'I want this' (changed again),
> why should upstream care at that stage?
> 
> Again, this patch was just trying to make initial transition easier, do you
> have a better recommendation?
> 
>> BTW, the aliases I see in downstream DTS (gs101-usi.dtsi) - since
>> beginning up to Android 14 are:
>>
>>                 hsi2c8 = &hsi2c_8;
>>                 hsi2c9 = &hsi2c_9;
>>                 hsi2c10 = &hsi2c_10;
>>                 hsi2c11 = &hsi2c_11;
>>                 hsi2c12 = &hsi2c_12;
>>
>> They were set like this in 2020 and never changed afterwards.
> 
> Those were incorrect and didn't actually work as intended, here's a
> better place to look:
> 
> https://android.googlesource.com/kernel/google-modules/raviole-device/+log/refs/heads/android-gs-raviole-mainline
> and
> https://android.googlesource.com/kernel/google-modules/raviole-device/+/9864593c894da90cd8b631ab57f15c25f4e11465%5E%21/

Thanks, so it's like Qualcomm - DTS separate from the kernel, although
here a bit confusing because partially overlapping.


Best regards,
Krzysztof





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