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    Subject[PATCH V3 0/3] gpio: Add virtio based driver
    Date
    Hello,

    This adds a virtio based GPIO driver based on the proposed specification [1].

    The first two versions [2] were sent by Enrico earlier and here is a newer version.
    I have retained the authorship of the work done by Enrico (1st patch) to make
    sure we don't loose his credits.

    I have tested all basic operations of the patchset (with Qemu guest) with the
    libgpiod utility. I have also tested the handling of interrupts on the guest
    side. All works as expected.

    I will now be working towards a Rust based hypervisor agnostic backend to
    provide a generic solution for that.

    This should be merged only after the specifications are merged, I will keep
    everyone posted for the same.

    I am not adding a version history here as a lot of changes have been made, from
    protocol to code and this really needs a full review from scratch.

    --
    Viresh

    [1] https://lists.oasis-open.org/archives/virtio-comment/202106/msg00022.html
    [2] https://lore.kernel.org/linux-gpio/20201203191135.21576-2-info@metux.net/

    Enrico Weigelt, metux IT consult (1):
    gpio: Add virtio-gpio driver

    Viresh Kumar (2):
    gpio: virtio: Add IRQ support
    MAINTAINERS: Add entry for Virtio-gpio

    MAINTAINERS | 7 +
    drivers/gpio/Kconfig | 9 +
    drivers/gpio/Makefile | 1 +
    drivers/gpio/gpio-virtio.c | 566 +++++++++++++++++++++++++++++++
    include/uapi/linux/virtio_gpio.h | 56 +++
    include/uapi/linux/virtio_ids.h | 1 +
    6 files changed, 640 insertions(+)
    create mode 100644 drivers/gpio/gpio-virtio.c
    create mode 100644 include/uapi/linux/virtio_gpio.h

    --
    2.31.1.272.g89b43f80a514

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