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    Subject[PATCH 00/22] gpio: cdev: add uAPI V2
    Date
    This patchset defines and implements adds a new version of the
    GPIO CDEV uAPI to address existing 32/64bit alignment issues, add
    support for debounce and event sequence numbers, and provide some
    future proofing by adding padding reserved for future use.

    The series can be partitioned into three sets; the first twelve
    are minor code tidy ups or fixes that I ran across while implementing V2,
    the next seven contain the V2 uAPI implementation proper, and the final
    three port the GPIO tools to the V2 uAPI.

    The more complicated patches include their own commentary where appropriate.

    Cheers,
    Kent.

    Kent Gibson (22):
    gpiolib: move gpiolib-sysfs function declarations into their own
    header
    gpiolib: cdev: sort includes
    gpiolib: cdev: minor indentation fixes
    gpiolib: cdev: refactor gpiohandle_flags_to_desc_flags
    gpiolib: cdev: rename 'filep' and 'filp' to 'file' to be consistent
    with other use
    gpiolib: cdev: rename numdescs to num_descs
    gpiolib: cdev: remove pointless decrement of i
    gpiolib: cdev: complete the irq/thread timestamp handshake
    gpiolib: cdev: rename priv to gcdev
    gpiolib: cdev: fix minor race in GET_LINEINFO_WATCH
    gpiolib: cdev: remove recalculation of offset
    gpio: uapi: define GPIO_MAX_NAME_SIZE for array sizes
    gpio: uapi: define uAPI V2
    gpiolib: make cdev a build option
    gpiolib: add build option for CDEV V1 ABI
    gpiolib: cdev: add V2 uAPI implementation to parity with V1
    gpiolib: cdev: report edge detection in lineinfo
    gpiolib: cdev: support setting debounce
    gpio: uapi: document uAPI V1 as deprecated
    tools: gpio: switch tools to V2 uAPI
    tools: gpio: add debounce support to gpio-event-mon
    tools: gpio: support monitoring multiple lines

    drivers/gpio/Kconfig | 28 +-
    drivers/gpio/Makefile | 2 +-
    drivers/gpio/gpiolib-cdev.c | 1610 ++++++++++++++++++++++++++++------
    drivers/gpio/gpiolib-cdev.h | 15 +
    drivers/gpio/gpiolib-sysfs.c | 1 +
    drivers/gpio/gpiolib-sysfs.h | 24 +
    drivers/gpio/gpiolib.c | 3 +
    drivers/gpio/gpiolib.h | 24 +-
    include/uapi/linux/gpio.h | 280 +++++-
    tools/gpio/gpio-event-mon.c | 133 +--
    tools/gpio/gpio-hammer.c | 28 +-
    tools/gpio/gpio-utils.c | 107 +--
    tools/gpio/gpio-utils.h | 48 +-
    tools/gpio/gpio-watch.c | 10 +-
    tools/gpio/lsgpio.c | 112 ++-
    15 files changed, 1933 insertions(+), 492 deletions(-)
    create mode 100644 drivers/gpio/gpiolib-sysfs.h


    base-commit: 84651e81ee3323c7d544edfa6ac6026425fe5a52
    --
    2.27.0

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