[PATCH v2 3/3] ASoC: sunxi: sun4i-spdif: Reorder clock enable sequence

[Bui Duc Phuc]

Hi Chen-yu,

> Oh, and you could also add that the resume order should (normally) be
> the reverse of the suspend order.

Thank you for the feedback and clarification.

I can certainly rewrite the commit message around the idea that the
resume ordering should normally mirror the suspend ordering.

However, I am still slightly unsure about which ordering should be
considered the preferred one in this case. If the reasoning is purely
based on suspend/resume symmetry, I wonder if changing the suspend
path itself to disable the APB clock before the SPDIF module clock
would be an option, which would then naturally lead to enabling the
SPDIF module clock first during resume.

>From the hardware perspective, I originally assumed the APB clock acts
as the prerequisite for register access while the module clock mainly
drives the functional audio logic, which is why the "bus before module"
ordering initially seemed more intuitive to me.

So I would like to better understand which ordering is considered the
preferred model for the Sunxi audio blocks here: preserving the existing
suspend/resume symmetry, or enforcing the bus/module dependency ordering.

Thanks,
Phuc