• Linus Torvalds's avatar
    Merge branch 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 99cc7ad4
    Linus Torvalds authored
    Pull i2c updates from Wolfram Sang:
    
     - the core has now a lockless variant of i2c_smbus_xfer. Some open
       coded versions of this got removed in drivers. This also enables
       proper SCCB support in regmap.
    
     - locking got a more precise naming. i2c_{un}lock_adapter() had to go,
       and we know use i2c_lock_bus() consistently with flags like
       I2C_LOCK_ROOT_ADAPTER and I2C_LOCK_SEGMENT to avoid ambiguity.
    
     - the gpio fault injector got a new delicate testcase
    
     - the bus recovery procedure got fixed to handle the new testcase
       correctly
    
     - a new quirk flag for controllers not able to handle zero length
       messages together with driver updates to use it
    
     - new drivers: FSI bus attached I2C masters, GENI I2C controller, Owl
       family S900
    
     - and a good set of driver improvements and bugfixes
    
    * 'i2c/for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (77 commits)
      i2c: rcar: implement STOP and REP_START according to docs
      i2c: rcar: refactor private flags
      i2c: core: ACPI: Make acpi_gsb_i2c_read_bytes() check i2c_transfer return value
      i2c: core: ACPI: Properly set status byte to 0 for multi-byte writes
      dt-bindings: i2c: rcar: Add r8a774a1 support
      dt-bindings: i2c: sh_mobile: Add r8a774a1 support
      i2c: imx: Simplify stopped state tracking
      i2c: imx: Fix race condition in dma read
      i2c: pasemi: remove hardcoded bus numbers on smbus
      i2c: designware: Add SPDX license tag
      i2c: designware: Convert to use struct i2c_timings
      i2c: core: Parse SDA hold time from firmware
      i2c: designware-pcidrv: Mark expected switch fall-through
      i2c: amd8111: Mark expected switch fall-through
      i2c: sh_mobile: use core to detect 'no zero length read' quirk
      i2c: xlr: use core to detect 'no zero length' quirk
      i2c: rcar: use core to detect 'no zero length' quirk
      i2c: stu300: use core to detect 'no zero length' quirk
      i2c: pmcmsp: use core to detect 'no zero length' quirk
      i2c: mxs: use core to detect 'no zero length' quirk
      ...
    99cc7ad4
i2c-davinci.c 25.7 KB