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    SubjectRe: [PATCH v7 2/2] bus: add driver for the Technologic Systems NBUS
    On Wed, Nov 1, 2017 at 6:14 PM, Sebastien Bourdelin
    <sebastien.bourdelin@savoirfairelinux.com> wrote:

    > This driver implements a GPIOs bit-banged bus, called the NBUS by
    > Technologic Systems. It is used to communicate with the peripherals in
    > the FPGA on the TS-4600 SoM.
    >
    > Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
    > Acked-by: Linus Walleij <linus.walleij@linaro.org>

    This is still a very nice driver.

    If you are working on supplemental patches: from the next merge window
    we will have:

    + int gpiod_get_array_value_cansleep(unsigned int array_size,
    + struct gpio_desc **desc_array,
    + int *value_array);

    See:
    https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio.git/commit/?h=devel&id=eec1d566cdf94b57e8f5ba9fe60eea214929bcfc

    If your GPIO controller also has .get_multiple() implemented it just
    becomes one register read if you're lucky.

    BTW do you have a way upstream for this patch? ARM SoC?

    Yours,
    Linus Walleij

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