[PATCH v2 2/3] gpiolib-of: Support 'reserved-gpio-ranges' property

Linus Walleij linus.walleij at linaro.org
Wed Feb 7 05:34:19 PST 2018


Hi Stephen,

nice work!

On Fri, Jan 26, 2018 at 2:13 AM, Stephen Boyd <sboyd at codeaurora.org> wrote:

> For now, we plumb this into the gpiochip irq APIs so that
> GPIO/pinctrl drivers can use the gpiochip_irqchip_irq_valid() to
> test validity of GPIOs.

But is that the right thing to do, given that we just took the
trouble to define a DT binding that is explicitly about
any GPIO, not just IRQ capable ones?

I am worries that the *irq* infix etc on these functions
will be a bit confusing.

Is it a lot of work to make it just generic and maybe bake it
into the gpio_chip so as to refuse already in
gpiod_request_commit() in gpiolib already?

Yours,
Linus Walleij



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