Merge branch 'device-properties'

Merge branch 'device-properties'

* device-properties:
  device property: avoid allocations of 0 length
  device property: the secondary fwnode needs to depend on the primary
  device property: add spaces to PROPERTY_ENTRY_STRING macro
  include/linux/property.h: fix build issues with gcc-4.4.4
  i2c: designware: Convert to use unified device property API
  mfd: intel-lpss: Pass HSUART configuration via properties
  mfd: intel-lpss: Pass SDA hold time to I2C host controller driver
  mfd: intel-lpss: Add support for passing device properties
  mfd: core: propagate device properties to sub devices drivers
  driver core: Do not overwrite secondary fwnode with NULL if it is set
  driver core: platform: Add support for built-in device properties
  device property: Take a copy of the property set
  device property: Fallback to secondary fwnode if primary misses the property
  device property: return -EINVAL when property isn't found in ACPI
  device property: improve readability of macros
  device property: helper macros for property entry creation
  device property: keep single value inplace
  device property: refactor built-in properties support
  device property: rename helper functions
  device property: always check for fwnode type