[PATCH v2 0/3] regulator: handle regulator late cleanup race with PM suspend

[Joy Zou]

The regulator_init_complete_work fires ~30s after boot to disable
unused regulators via I2C. When this work races with PM suspend, the
I2C adapter may already be suspended, causing a -ESHUTDOWN warning
dump.

This series addresses the race and adds proper suspend power
management for unused LDO regulators.

Signed-off-by: Joy Zou <joy.zou@xxxxxxxxxxx>
---
Changes in v2:
- trim the oversized register dump from the backtrace in the commit
  message, keeping only the relevant call trace.
- rename the callback to pfuze100_ldo_set_suspend_disable since it is
  only wired into the LDO ops.
- use the per-regulator stby_reg/stby_mask instead of a hardcoded
  VGENxSTBY/VGENxLPWR bit.
- clarify that the change targets suspend power reduction and remove the
  redundant race-condition wording so the commit message is clearer.
- Link to v1: https://patch.msgid.link/20260716-b4-regulator-pf01-v1-0-8c1519d54bd4@xxxxxxxxxxx

---
Joy Zou (3):
      regulator: core: use system_freezable_wq for init complete work
      regulator: pfuze100: add set_suspend_disable for LDO ops
      arm64: dts: imx8mq-evk: add regulator-off-in-suspend for VGEN1/VGEN6

 arch/arm64/boot/dts/freescale/imx8mq-evk.dts |  6 ++++++
 drivers/regulator/core.c                     |  6 ++++--
 drivers/regulator/pfuze100-regulator.c       | 20 ++++++++++++++++++++
 3 files changed, 30 insertions(+), 2 deletions(-)
---
base-commit: 34cf6dafc47441dfb6b356a095b89c3585a93714
change-id: 20260716-b4-regulator-pf01-5db03fba4a92

Best regards,
--  
Joy Zou <joy.zou@xxxxxxxxxxx>