Allow inclusion of *_hal headers in .cpp files (IDFGH-10573)

[higaski]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

ESP-IDF v5.2-dev-1349-gcf7e743a9b

Operating System used.

Linux

How did you build your project?

Command line with Make

If you are using Windows, please specify command line type.

None

What is the expected behavior?

Commit 921713f broke a build of mine which relies on one of the low level routines in uart_ll.h
From that commit on the header can no longer be included in a .cpp file because of C++s stronger typing.

/home/vinci/esp/esp-idf/components/hal/esp32s3/include/hal/uart_ll.h:112:27: error: cannot convert 'soc_periph_uart_clk_src_legacy_t' to 'soc_module_clk_t' in assignment
  112 |             *source_clk = UART_SCLK_APB;
      |                           ^~~~~~~~~~~~~
      |                           |
      |                           soc_periph_uart_clk_src_legacy_t
compilation terminated due to -Wfatal-errors.

I'd appreciate it if compatibility could be restored by adding a cast.

What is the actual behavior?

.

Steps to reproduce.

.

Build or installation Logs.

No response

More Information.

No response

[0xjakob]

@higaski Thanks for letting us know! We'll add this cast and come back to you here.