Re: [PATCH 1/3] regulator: core: use system_freezable_wq for init complete work

[Mark Brown]

On Thu, Jul 16, 2026 at 11:50:53AM +0800, Joy Zou wrote:
> schedule_delayed_work() uses system_wq, which is non-freezable, allowing
> regulator_init_complete_work to run concurrently with system suspend. This
> work fires ~30s after boot to disable unused regulators via I2C. When it
> races with PM suspend, the I2C adapter may already be suspended, triggering
> a -ESHUTDOWN warning dump.

> [   33.707233] pc : __i2c_transfer+0x36c/0x3c8
> [   33.707240] lr : __i2c_transfer+0x36c/0x3c8
> [   33.707246] sp : ffff80008239ba50
> [   33.707249] x29: ffff80008239ba50 x28: 0000000000000001 x27: 0000000000000000

Please think hard before including complete backtraces in upstream
reports, they are very large and contain almost no useful information
relative to their size so often obscure the relevant content in your
message. If part of the backtrace is usefully illustrative (it often is
for search engines if nothing else) then it's usually better to pull out
the relevant sections.

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