[PATCH v6 2/2] spi: add driver for NXP XSPI controller

[Mark Brown]

On Tue, Nov 25, 2025 at 03:42:19PM +0800, Haibo Chen wrote:
> Add driver support for NXP XSPI controller.
> 
> XSPI is a flexible SPI host controller which supports up to
> 2 external devices (2 CS). It support Single/Dual/Quad/Octal
> mode data transfer.

This breaks the build:

/build/stage/linux/drivers/spi/spi-nxp-xspi.c: In function ‘nxp_xspi_exec_op’:
/build/stage/linux/drivers/spi/spi-nxp-xspi.c:997:9: error: implicit declaration
 of function ‘PM_RUNTIME_ACQUIRE_AUTOSUSPEND’ [-Wimplicit-function-declaration]
  997 |         PM_RUNTIME_ACQUIRE_AUTOSUSPEND(xspi->dev, pm);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/stage/linux/drivers/spi/spi-nxp-xspi.c:997:51: error: ‘pm’ undeclared (fi
rst use in this function); did you mean ‘tm’?
  997 |         PM_RUNTIME_ACQUIRE_AUTOSUSPEND(xspi->dev, pm);
      |                                                   ^~
      |                                                   tm
/build/stage/linux/drivers/spi/spi-nxp-xspi.c:997:51: note: each undeclared iden
tifier is reported only once for each function it appears in
/build/stage/linux/drivers/spi/spi-nxp-xspi.c:998:15: error: implicit declaration of function ‘PM_RUNTIME_ACQUIRE_ERR’ [-Wimplicit-function-declaration]
  998 |         err = PM_RUNTIME_ACQUIRE_ERR(&pm);
      |               ^~~~~~~~~~~~~~~~~~~~~~
/build/stage/linux/drivers/spi/spi-nxp-xspi.c: In function ‘nxp_xspi_probe’:
/build/stage/linux/drivers/spi/spi-nxp-xspi.c:1265:45: error: ‘pm’ undeclared (first use in this function); did you mean ‘tm’?
 1265 |         PM_RUNTIME_ACQUIRE_AUTOSUSPEND(dev, pm);
      |                                             ^~
      |                                             tm

Please resubmit after the merge window unless there's already a
convenient tag for the new macro.
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