Merge tag 'gpio-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull gpio updates from Linus Walleij:
 "This is the big bulk of GPIO changes queued for the v4.2 kernel
  series:

   - a big set of cleanups to the aged sysfs interface from Johan
     Hovold.  To get these in, v4.1-rc3 was merged into the tree as the
     first patch in that series had to go into stable.  This makes the
     locking much more fine-grained (get rid of the "big GPIO lock(s)"
     and store states in the GPIO descriptors.

   - rename gpiod_[g|s]et_array() to gpiod_[g|s]et_array_value() to
     avoid confusions.

   - New drivers for:
      * NXP LPC18xx (currently LPC1850)
      * NetLogic XLP
      * Broadcom STB SoC's
      * Axis ETRAXFS
      * Zynq Ultrascale+ (subdriver)

   - ACPI:
      * make it possible to retrieve GpioInt resources from a GPIO
        device using acpi_dev_gpio_irq_get()
      * merge some dependent I2C changes exploiting this.
      * support the ARM X-Gene GPIO standby driver.

   - make it possible for the generic GPIO driver to read back the value
     set registers to reflect current status.

   - loads of OMAP IRQ handling fixes.

   - incremental improvements to Kona, max732x, OMAP, MXC, RCAR,
     PCA953x, STP-XWAY, PCF857x, Crystalcove, TB10x.

   - janitorial (constification, checkpatch cleanups)"

* tag 'gpio-v4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (71 commits)
  gpio: Fix checkpatch.pl issues
  gpio: pcf857x: handle only enabled irqs
  gpio / ACPI: Return -EPROBE_DEFER if the gpiochip was not found
  GPIO / ACPI: export acpi_gpiochip_request(free)_interrupts for module use
  gpio: improve error reporting on own descriptors
  gpio: promote own request failure to pr_err()
  gpio: Added support to Zynq Ultrascale+ MPSoC
  gpio: add ETRAXFS GPIO driver
  fix documentation after renaming gpiod_set_array to gpiod_set_array_value
  gpio: Add GPIO support for Broadcom STB SoCs
  gpio: xgene: add ACPI support for APM X-Gene GPIO standby driver
  gpio: tb10x: Drop unneeded free_irq() call
  gpio: crystalcove: set IRQCHIP_SKIP_SET_WAKE for the irqchip
  gpio: stp-xway: Use the of_property_read_u32 helper
  gpio: pcf857x: Check for irq_set_irq_wake() failures
  gpio-stp-xway: Fix enabling the highest bit of the PHY LEDs
  gpio: Prevent an integer overflow in the pca953x driver
  gpio: omap: rework omap_gpio_irq_startup to handle current pin state properly
  gpio: omap: rework omap_gpio_request to touch only gpio specific registers
  gpio: omap: rework omap_x_irq_shutdown to touch only irqs specific registers
  ...

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