• Linus Torvalds's avatar
    Merge tag 'gpio-v3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · c2d33069
    Linus Torvalds authored
    Pull GPIO changes from Linus Walleij:
     "Here is the bulk of GPIO changes for the v3.13 development cycle.
    
      I've got ACKs for the things that affect other subsystems (or it's my
      own subsystem, like pinctrl).  Most of that pertain to an attempt from
      my side to consolidate and get rid of custom GPIO implementations in
      the ARM tree.  I will continue doing this.
    
      The main change this time is the new GPIO descriptor API, background
      for this can be found in Corbet's summary from this january in LWN:
    
        http://lwn.net/Articles/533632/
    
      Summary:
    
       - Merged the GPIO descriptor API from Alexandre Courbot.  This is a
         first step toward trying to get rid of the global GPIO numberspace
         for the future.
    
       - Add an API so that driver can flag that a certain GPIO line is
         being used by a irqchip backend for generating IRQs, so that we can
         enforce checks, like not allowing users to switch that line to an
         output at runtime, since this makes no sense.  Implemented
         corresponding calls in a few select drivers.
    
       - ACPI GPIO cleanups, refactorings and switch to using the
         descriptor-based interface.
    
       - Support for the TPS80036 Palmas GPIO variant.
    
       - A new driver for the Broadcom Kona GPIO SoC IP block.
    
       - Device tree support for the PCF857x driver.
    
       - A set of ARM GPIO refactorings with the goal of getting rid of a
         bunch of custom GPIO implementations from the arch/arm/* tree:
    
         * Move the IOP GPIO driver to the GPIO subsystem and fix all users
           to use the gpiolib API for accessing GPIOs.  Delete the old
           custom GPIO implementation.
    
         * Delete the unused custom PXA GPIO implemention.
    
         * Convert all users of the IXP4 custom GPIO implementation to use
           gpiolib and delete the custom implementation.
    
         * Delete the custom Gemini GPIO implementation, also completely
           unused.
    
       - Various cleanups and renamings"
    
    * tag 'gpio-v3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (85 commits)
      gpio: gpio-mxs: Remove unneeded dt checks
      gpio: pl061: don't depend on CONFIG_ARM
      gpio: bcm-kona: add missing .owner to struct gpio_chip
      gpiolib: provide a declaration of seq_file in gpio/driver.h
      gpiolib: include gpio/consumer.h in of_gpio.h for desc_to_gpio()
      gpio: provide stubs for devres gpio functions
      gpiolib: devres: add missing headers
      gpiolib: make GPIO_DEVRES depend on GPIOLIB
      gpiolib: devres: fix devm_gpiod_get_index()
      gpiolib / ACPI: document the GPIO descriptor based interface
      gpiolib / ACPI: allow passing GPIOF_ACTIVE_LOW for GpioInt resources
      gpiolib / ACPI: add ACPI support for gpiod_get_index()
      gpiolib / ACPI: convert to gpiod interfaces
      gpiolib: add gpiod_get() and gpiod_put() functions
      gpiolib: port of_ functions to use gpiod
      gpiolib: export descriptor-based GPIO interface
      Fixup "MAINTAINERS: GPIO-INTEL-MID: add maintainer"
      gpio: bcm281xx: Don't print addresses of GPIO area in probe()
      gpio: tegra: use new gpio_lock_as_irq() API
      gpio: rcar: Include linux/of.h header
      ...
    c2d33069
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