Max22915 release

[jansunil]

Pull Request Description

Please replace this with a detailed description and motivation of the changes.
You can tick the checkboxes below with an 'x' between square brackets or just check them after publishing the PR.
If this PR contains a breaking change, list dependent PRs and try to push all related PRs at the same time.

PR Type

• Bug fix (change that fixes an issue)
• New feature (change that adds new functionality)
• Breaking change (has dependencies in other repos or will cause CI to fail)

PR Checklist

• I have followed the Coding style guidelines
• I have complied with the Submission Checklist
• I have performed a self-review of the changes
• I have commented my code, at least hard-to-understand parts
• I have build all projects affected by the changes in this PR
• I have tested in hardware affected projects, at the relevant boards
• I have signed off all commits from this PR
• I have updated the documentation (wiki pages, ReadMe etc), if applies

[RaduSabau1]

some comments from my side. also consider adding a change-log whenever you push a new version

[jansunil]

Changelog v1:

1) Replaced incorrect device descriptor update for dev->shtvdd_enable and dev->ow_config[channel].owoff_enable and dev->ow_config[channel].owon_enable
2) Added a new structure member for max22915_ow_config in the device descriptor.
3) Updated the SPI_MAX_SPEED_HZ macro
4) Implemented direct return of no_os_spi_transfer() in the max22915_reg_write() function
5) Removed extra tab spaces
6) Free SPI descriptor in the max22915_init()
7) Added a space character between the link name and the actual link in the projects/max22915/README.md 

[jansunil]

Changelog v2:

Remove unused variable 'ret' from max22915_reg_write() API

[jansunil]

Changelog V3:

1. Fixed address mask: NO_OS_GENMASK(4, 1) → NO_OS_GENMASK(5, 1)
2. Removed MAX22915_FRAME_SIZE = 4, kept only MAX22915_SPI_FRAME_SIZE = 2
3. buff[MAX22915_FRAME_SIZE + 1] → buff[MAX22915_SPI_FRAME_SIZE + 1] (5→3 bytes)
4. Updated init function prorotypes: max22915_init_param init_param → max22915_init_param *init_param, updated pointer parameter access accordingly
5. Corrected inverted logic in max22915_set_sw_state()
6. Fixed read function to use MAX22915_SPI_FRAME_SIZE instead of hardcoded 2
7. Added fault delection in the basic example layer
8. Automatic FLED/SLED control with hardware behavior compliance in the basic example
9. Removed FLED and SLED configuration in the max22915_init(), removed device descriptors and init parameters as well.
10. Directly return from APIs wherever applicable
11. Configure chip address in the max22915_ip struct in common_data.chip

[jansunil]

Changelog V4: Minor updates with error handling and structure definition

[jansunil]

Changelog: Initialize the faults structure to 0

[jansunil]

Changelog: fix astyle error and remove fixup commit

[amiclaus]

some comments on my side.

[jansunil]

Changelog:

1. Move desc validation before struct initialization in max22915_reg_read() and max22915_reg_write()
2. Combine multiple register writes into single read-modify-write operations
3. Return -EINVAL for null input instead of always returning 0 in max22915_remove()
4. Add proper UART and device cleanup in error path with null-safe removal
5. Remove generic "Error init!" print that was shown for all error types
6. Update copyright year to 2026 and update license headers

[RaduSabau1]

some minor comments from my side, otherwise lgtm!

[jansunil]

Changelog:

1. Update Copyright 2026(c) to Copyright 2025-2026(c) across all files
2. Refactor max22915_set_current_config() and max22915_set_temperature_config() to use max22915_reg_write_mask() directly
3. Remove no_os_crc8.c and no_os_crc8.h from src.mk
4. Add detailed fault reporting in max22915_run_diagnostics()
5. Replace (1 << ch) with MAX22915_CH_MASK(ch) macro in fault detection logic for better consistency
6. Clean up single-statement if blocks in diagnostics function
7. Clean up spacing after pr_info statements before while loop
8. Remove blank line between assignment in max22915_reg_write()
9. Minor formatting cleanup in parameters.h license text