Merge tag 'imx-drivers-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/drivers

i.MX drivers change for 5.20:

- Update imx8m-blk-ctrl driver to print the name of the power domain,
  so that the error message becomes more useful.
- Update the error messages in gpcv2 driver by printing the reason why
  a regulator fails to be enabled or disabled.
- A series from Michael Walle to convert the guts driver from a platform
  driver to an core_initcall for getting rid of all those global static
  variables.
- A couple of follow-up fixes on guts driver series.

* tag 'imx-drivers-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: fsl: guts: check return value after calling of_iomap() in fsl_guts_get_soc_uid()
  soc: fsl: guts: fix return value check in fsl_guts_init()
  soc: imx: imx8m-blk-ctrl: Make error prints useful
  soc: fsl: guts: add serial_number support
  soc: fsl: guts: drop platform driver
  soc: fsl: guts: use of_root instead of own reference
  soc: fsl: guts: allocate soc_dev_attr on the heap
  soc: fsl: guts: embed fsl_guts_get_svr() in probe()
  soc: fsl: guts: remove module_exit() and fsl_guts_remove()
  soc: fsl: guts: machine variable might be unset
  soc: imx: gpcv2: print errno for regulator errors

Link: https://lore.kernel.org/r/20220709082951.15123-1-shawnguo@kernel.orgSigned-off-by: Arnd Bergmann <arnd@arndb.de>