[Backport v4.2] i2c: stm32: non-RTIO driver fixes on PM and on STM32F7 from Zephyr v4.3

[etienne-lms]

Describe the bug

In Zephyr v4.2, STM32 I2C RTIO drivers have 2 issues:

• pm_device_runtime_get()/_put() were not called when the I2C bus is not wakeup capable, leading to non-function I2C controller when PM runtime is enabled.
• STM32F7 SoCs do not yet support power management and some expected HAL functions (LL_I2C_EnableWakeUpFromStop() and LL_I2C_DisableWakeUpFromStop')) do not even exist, leading to build errors.

These 2 issues were addressed in v4.2 for the non-RTIO STM32 I2C drivers but not for the RTIO drivers.
These 2 issues in the STM32 I2C RTIO driver are fixed in v4.3 (see #94845). These 2 fixes (181e544 and 5ff3dbe) should be backported in v4.2 branch.

Regression

• This is a regression.

Steps to reproduce

No response

Relevant log output

Impact

Annoyance – Minor irritation; no significant impact on usability or functionality.

Environment

No response

Additional Context

No response

[JarmouniA]

The issue attached to a Backport PR is supposed to contain an actual bug report, with a detailed description of what is being fixed and how it can be reproduced.... and each bug being fixed needs its own issue I believe.

[etienne-lms]

Ok, i'll update the description to focus on the original issues instead of the backport proposal.
Thanks for the notif.

[etienne-lms]

@JarmouniA, I've updated the description. Tell me if it looks ok for you.

[etienne-lms]

Closing since #95003 has been merged.