[PATCH v2 2/3] ASoC: sunxi: sun4i-spdif: Resume device before kcontrol register access

[Bui Duc Phuc]

Hi Chen-Yu,

On Sat, May 23, 2026 at 2:19 AM Chen-Yu Tsai <wens at kernel.org> wrote:
> And when you do add patches due to Sashiko raising an issue, please
> do mention it in the commit message.
>

As mentioned in the v1 discussion , this issue was originally reported
by Sashiko.
I'll add the Reported-by tag in the next revision.
v1 links:
https://lore.kernel.org/all/20260513105003.81880-1-phucduc.bui@gmail.com/

> Did you actually reproduce the issue, or did you add the patch simply
> because Sashiko mentioned it?
>
Since I lack Sunxi hardware, I couldn't reproduce it or perform runtime testing.
But I did compile-test the patch.
The patch aims to fix unsafe register accesses that occur before ensuring the
device is runtime-resumed.

> On sunxi, either it will hang the system because the bus transaction
> got ignored, or it won't as something else enabled the clock.
>

If Sunxi's PM design already guarantees safe access here,
feel free to reject the patch.

Best Regards,
Phuc