Pull i2c updates from Wilfram Sang:
 "I2C has the following updates for you:

   - an immutable cross-subsystem branch fixing PMIC access on Intel
     Baytrail

   - bigger driver updates to the designware, meson, exynos5 drivers

   - new i2c_acpi_new_device() function to create devices from ACPI

   - struct i2c_driver has now a flag 'disable_i2c_core_irq_mapping' to
     allow custom IRQ mapping in case the default does not fit

   - mux subsystem centralized error messages in its core

   - new driver for ltc4306 i2c mux

   - usual set of small updates"

* 'i2c/for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (44 commits)
  i2c: thunderx: Enable HWMON class probing
  i2c: rcar: clarify PM handling with more comments
  i2c: rcar: fix resume by always initializing registers before transfer
  i2c: tegra: fix spelling mistake: "contoller" -> "controller"
  i2c: exynos5: use core helper to get driver data
  i2c: exynos5: de-duplicate error logs on clock setup
  i2c: exynos5: simplify clock frequency handling
  i2c: exynos5: simplify timings calculation
  i2c: designware-baytrail: fix potential null pointer dereference on dev
  i2c: designware: Get selected speed mode sda-hold-time via ACPI
  [media] cx231xx: stop double error reporting
  i2c: core: Allow drivers to disable i2c-core irq mapping
  i2c: core: Add new i2c_acpi_new_device helper function
  i2c: core: Allow getting ACPI info by index
  i2c: img-scb: use setup_timer
  i2c: i2c-scmi: add a MS HID
  i2c: mux: ltc4306: LTC4306 and LTC4305 I2C multiplexer/switch
  dt-bindings: i2c: mux: ltc4306: Add dt-bindings for I2C multiplexer/switch
  i2c: mux: reg: stop double error reporting
  i2c: mux: pinctrl: stop double error reporting
  ...