Merge tag 'at91-soc-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/soc

AT91 soc for 5.15:

- add new SoC based on a Cortex-A7 core: the SAMA7G5 family
  - mach-at91 entry, Kconfig and header files
  - Power Management Controller (PMC) code and associated power management
    changes. Support for suspend/resume, Ultra Low Power modes and
    Backup with Memory in Self-Refresh mode.
  - Power management association with DDR controller and
    shutdown controller for addressing this variety of modes.

* tag 'at91-soc-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux: (26 commits)
  ARM: at91: pm: add sama7g5 shdwc
  ARM: at91: pm: add pm support for SAMA7G5
  ARM: at91: sama7: introduce sama7 SoC family
  ARM: at91: pm: add sama7g5's pmc
  ARM: at91: pm: add backup mode support for SAMA7G5
  ARM: at91: pm: save ddr phy calibration data to securam
  ARM: at91: pm: add sama7g5 ddr phy controller
  ARM: at91: pm: add sama7g5 ddr controller
  ARM: at91: pm: wait for ddr power mode off
  ARM: at91: pm: add support for 2.5V LDO regulator control
  ARM: at91: pm: add support for MCK1..4 save/restore for ulp modes
  ARM: at91: pm: add self-refresh support for sama7g5
  ARM: at91: ddr: add registers definitions for sama7g5's ddr
  ARM: at91: sfrbu: add sfrbu registers definitions for sama7g5
  ARM: at91: pm: add support for waiting MCK1..4
  ARM: at91: pm: s/CONFIG_SOC_SAM9X60/CONFIG_HAVE_AT91_SAM9X60_PLL/g
  ARM: at91: pm: avoid push and pop on stack while memory is in self-refersh
  ARM: at91: pm: use r7 instead of tmp1
  ARM: at91: pm: do not initialize pdev
  ARM: at91: pm: check for different controllers in at91_pm_modes_init()
  ...

Link: https://lore.kernel.org/r/20210804084316.12641-1-nicolas.ferre@microchip.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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