• Linus Torvalds's avatar
    Merge tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 2bd80401
    Linus Torvalds authored
    Pull GPIO updates from Linus Walleij:
     "This is the bulk of GPIO changes for the v4.12 kernel cycle.
    
      Core changes:
    
       - Return NULL from gpiod_get_optional() when GPIOLIB is disabled.
         This was a much discussed change. It affects use cases where people
         write drivers that might or might not be using GPIO resources. I
         have decided that this is the lesser evil right now.
    
       - Make gpiod_count() behave consistently across different hardware
         descriptions.
    
       - Fix the syntax around open drain/open source to not infer active
         high/low semantics.
    
      New drivers:
    
       - A new single-register fixed-direction framework driver for hardware
         that have lines controlled by a single register that just work in
         one direction (out or in), including IRQ support.
    
       - Support the Fintek F71889A GPIO SuperIO controller.
    
       - Support the National NI 169445 MMIO GPIO.
    
       - Support for the X-Gene derivative of the DWC GPIO controller
    
       - Support for the Rohm BD9571MWV-M PMIC GPIO controller.
    
       - Refactor the Gemini GPIO driver to a generic Faraday FTGPIO driver
         and replace both the Gemini and the Moxa ART custom drivers with
         this driver.
    
      Driver improvements:
    
       - A whole slew of drivers have their spinlocks chaned to raw
         spinlocks as they provide irqchips, and thus we are progressing on
         realtime compliance.
    
       - Use devm_irq_alloc_descs() in a slew of drivers, getting managed
         resources.
    
       - Support for the embedded PWM controller inside the MVEBU driver.
    
       - Debounce, open source and open drain support for the Aspeed driver.
    
       - Misc smaller fixes like spelling and syntax and whatnot"
    
    * tag 'gpio-v4.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (77 commits)
      gpio: f7188x: Add a missing break
      gpio: omap: return error if requested debounce time is not possible
      gpio: Add ROHM BD9571MWV-M PMIC GPIO driver
      gpio: gpio-wcove: fix GPIO IRQ status mask
      gpio: DT bindings, move tca9554 from pcf857x to pca953x
      gpio: move tca9554 from pcf857x to pca953x
      gpio: arizona: Correct check whether the pin is an input
      gpio: Add XRA1403 DTS binding documentation
      dt-bindings: add exar to vendor prefixes list
      gpio: gpio-wcove: fix irq pending status bit width
      gpio: dwapb: use dwapb_read instead of readl_relaxed
      gpio: aspeed: Add open-source and open-drain support
      gpio: aspeed: Add debounce support
      gpio: aspeed: dt: Add optional clocks property
      gpio: aspeed: dt: Fix description alignment in bindings document
      gpio: mvebu: Add limited PWM support
      gpio: Use unsigned int for interrupt numbers
      gpio: f7188x: Add F71889A GPIO support.
      gpio: core: Decouple open drain/source flag with active low/high
      gpio: arizona: Correct handling for reading input GPIOs
      ...
    2bd80401
soc_button_array.c 10.2 KB