Merge tag 'spi-fix-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A disappointingly large collection of fixes for SPI issues, though
  almost all in drivers (and there mainly the newly added Mediatek
  driver) and the core fixes are documentation and error handling.

  The driver fixes are all of the usual 'important if you see them'
  variety"

* tag 'spi-fix-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: xtensa-xtfpga: fix register endianness
  spi: meson: Fix module autoload for OF platform driver
  spi: mediatek: fix wrong error return value on probe
  spi: fix kernel-doc warnings in spi.h
  spi: spidev: fix possible NULL dereference
  spi: atmel: remove warning when !CONFIG_PM_SLEEP
  spi: bcm2835: BUG: fix wrong use of PAGE_MASK
  spi: mediatek: fix spi cs polarity error
  spi: Fix documentation of spi_alloc_master()
  spi: spi-pxa2xx: Check status register to determine if SSSR_TINT is disabled
  spi: Mediatek: Document devicetree bindings update for spi bus
  spi: mediatek: fix spi clock usage error
  spi: mediatek: remove clk_disable_unprepare()