On Thu, Dec 28, 2017 at 5:15 PM, Stephen Boyd <sboyd@xxxxxxxxxxxxxx> wrote:
> Patch 1 is still needed. Without that patch, we'll be poking each
> GPIO to figure out the direction at boot without checking any
> valid mask or calling the request APIs.
Aha, I just thought you'd augment that code to take valid GPIOs
into account.
Anyways, I left the patch in, so no worries.
> I don't see the part in
> debugfs where we show the direction of a GPIO if it hasn't been
> requested. Don't we skip over the unrequested GPIOs because of
> this code in gpiolib_dbg_show()?
>
> if (!test_bit(FLAG_REQUESTED, &gdesc->flags)) {
> ...
> continue;
> }
Yes you're right. This is more for lsgpio and the chardev side
of things for inspecting lines really.
Yours,
Linus Walleij
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