• Linus Torvalds's avatar
    Merge tag 'spi-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · 7ae0ae4a
    Linus Torvalds authored
    Pull spi updates from Mark Brown:
     "Quite a lot of cleanup and maintainence work going on this release in
      various drivers, and also a fix for a nasty locking issue in the core:
    
       - A fix for locking issues when external drivers explicitly locked
         the bus with spi_bus_lock() - we were using the same lock to both
         control access to the physical bus in multi-threaded I/O operations
         and exclude multiple callers.
    
         Confusion between these two caused us to have scenarios where we
         were dropping locks.  These are fixed by splitting into two
         separate locks like should have been done originally, making
         everything much clearer and correct.
    
       - Support for DMA in spi_flash_read().
    
       - Support for instantiating spidev on ACPI systems, including some
         test devices used in Windows validation.
    
       - Use of the core DMA mapping functionality in the McSPI driver.
    
       - Start of support for ThunderX SPI controllers, involving a very big
         set of changes to the Cavium driver.
    
       - Support for Braswell, Exynos 5433, Kaby Lake, Merrifield, RK3036,
         RK3228, RK3368 controllers"
    
    * tag 'spi-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (64 commits)
      spi: Split bus and I/O locking
      spi: octeon: Split driver into Octeon specific and common parts
      spi: octeon: Move include file from arch/mips to drivers/spi
      spi: octeon: Put register offsets into a struct
      spi: octeon: Store system clock freqency in struct octeon_spi
      spi: octeon: Convert driver to use readq()/writeq() functions
      spi: pic32-sqi: fixup wait_for_completion_timeout return handling
      spi: pic32: fixup wait_for_completion_timeout return handling
      spi: rockchip: limit transfers to (64K - 1) bytes
      spi: xilinx: Return IRQ_NONE if no interrupts were detected
      spi: xilinx: Handle errors from platform_get_irq()
      spi: s3c64xx: restore removed comments
      spi: s3c64xx: add Exynos5433 compatible for ioclk handling
      spi: s3c64xx: use error code from clk_prepare_enable()
      spi: s3c64xx: rename goto labels to meaningful names
      spi: s3c64xx: document the clocks and the clock-name property
      spi: s3c64xx: add exynos5433 spi compatible
      spi: s3c64xx: fix reference leak to master in s3c64xx_spi_remove()
      spi: spi-sh: Remove deprecated create_singlethread_workqueue
      spi: spi-topcliff-pch: Remove deprecated create_singlethread_workqueue
      ...
    7ae0ae4a
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