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 (contification, checkpatch cleanups)