Merge branch 'acpi-driver'

Merge branch 'acpi-driver'

Merge updates of drivers handling devices defined in the ACPI
specification and other generic devices with ACPI interfaces for
6.20-rc1/7.0-rc1:

 - Add a piece of documentation explaining why binding drivers directly
   to ACPI device objects is not a good idea in general and why it is
   desirable to convert drivers doing so into proper platform drivers
   that use struct platform_driver for device binding (Rafael Wysocki)

 - Convert multiple "core ACPI" drivers, including the NFIT ACPI device
   driver, the generic ACPI button drivers, the generic ACPI thermal
   zone driver, the ACPI hardware event device (HED) driver, the ACPI EC
   driver, the ACPI SMBUS HC driver, the ACPI Smart Battery Subsystem
   (SBS) driver, and the ACPI backlight (video) driver to proper platform
   drivers that use struct platform_driver for device binding (Rafael
   Wysocki)

 - Use acpi_get_local_u64_address() in the ACPI backlight (video) driver
   to evaluate _ADR instead of evaluating that object directly (Andy
   Shevchenko)

* acpi-driver: (25 commits)
  ACPI: video: simplify code with acpi_get_local_u64_address()
  ACPI: scan: Clean up after recent changes
  ACPI: scan: Use acpi_setup_gpe_for_wake() for buttons
  ACPI: PM: Let acpi_dev_pm_attach() skip devices without ACPI PM
  ACPI: Documentation: driver-api: Disapprove of using ACPI drivers
  ACPI: video: Convert the driver to a platform one
  ACPI: video: Adjust event notification routine
  ACPI: scan: Register platform devices for backlight device objects
  ACPI: SBS: Convert the driver to a platform one
  ACPI: SMBUS HC: Convert the driver to a platform one
  ACPI: EC: Convert the driver to a platform one
  ACPI: EC: Register a platform device for ECDT EC
  ACPI: HED: Convert the driver to a platform one
  ACPI: thermal: Rework system suspend and resume handling
  ACPI: thermal: Convert the driver to a platform one
  ACPI: thermal: Adjust event notification routine
  ACPI: scan: Register platform devices for thermal zones
  ACPI: scan: Do not mark button ACPI devices as wakeup-capable
  ACPI: scan: Do not bind ACPI drivers to fixed event buttons
  ACPI: tiny-power-button: Convert the driver to a platform one
  ...