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LPSPI check flexcomm wrapping and irq setup per instance #83704

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@decsny decsny commented Jan 8, 2025

Some platforms have an LPSPI wrapped in lp flexcomm and an LPSPI not wrapped in lpflexcomm, on the same platform

Depends on: #82750

Move this driver to its own subfolder to organize it
since there will be new files added for this hardware.

Signed-off-by: Declan Snyder <[email protected]>
There is (almost) a whole separate driver for RTIO,
move this code to its own file and move shared code
and definitions to a common file.

Signed-off-by: Declan Snyder <[email protected]>
The DMA-based path of the lpspi driver is basically
almost a driver of it's own, move it to it's own file.

Signed-off-by: Declan Snyder <[email protected]>
Determine proper irq setup depending whether the spi is wrapped in an
lpflexcomm or not on an instance basis since some platforms have some
wrapped and some not.

Signed-off-by: Declan Snyder <[email protected]>
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