Versions Compared

Old Version 16

changes.mady.by.user Neeli Srinivas

Saved on

compared with

New Version 17

changes.mady.by.user Sandeep Gundlupet Raju

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

The purpose of this page is to introduce two methods for interacting with GPIO from user space on Zynq-7000 and Zynq Ultrascale+ MPSoC: the SysFs interface and the Linux kernel drivers (gpio-keys, leds-gpio).

The GPIO subsystem is documented in the kernel documentation in Documentation/gpio/.

Note: The SysFs driver has been tested and is working. It has been accepted into the mainline kernel and the old char mode GPIO driver that didn't work with arch/powerpc has been removed from the tree.

...

  • 355168 gpio: zynq: protect direction in/out with a spinlock
2018.3
Summary:
  • gpio: zynq: Remove call to platform_get_irq
  • gpio: zynq: simplifly getting drvdata
  • gpio: zynq: Setup chip->base based on alias ID
Commits:
  • 52b64a2 gpio: zynq: Remove call to platform_get_irq 
  • eb816d4 gpio: zynq: simplifly getting drvdata
  • 5dd4162 gpio: zynq: Setup chip->base based on alias ID

2019.1

  • summary:
    • gpio: zynq: Configured zynq gpio's in boot loader stage.
    • gpio: zynq: Added support runtime PM for GPIO
    • gpio: zynq: Disable the irq if it is not a wakeup source
  • commits:
    • 81e13db: Report gpio direction at boot
    • d2fe433:  properly support runtime PM for GPIO used as interrupts
    • 65b9290: Disable the irq if it is not a wakeup source

2019.2

    • summary
      • gpio: zynq: Add pmc gpio support
    • commits

2020.1

  • Summary
    • gpio:zynq: Remove error prints in EPROBE_DEFER
    • gpio:zynq:use module_platform_driver to simplify the code
  • commits
    • 9b515a08 :Remove error prints in EPROBE_DEFER
    • 5230a062 :use module_platform_driver to simplify the code

2020.2

  • Summary
    • None

Related Links


...