[PATCH v3 1/3] Input: ads7846 - Convert to use software nodes
Dmitry Torokhov
dmitry.torokhov at gmail.com
Mon May 8 14:28:01 PDT 2023
On Mon, May 08, 2023 at 11:23:44PM +0200, Linus Walleij wrote:
> On Fri, May 5, 2023 at 8:08 PM Dmitry Torokhov
> <dmitry.torokhov at gmail.com> wrote:
>
> > > - return !gpio_get_value(ts->gpio_pendown);
> > > + return !gpiod_get_value(ts->gpio_pendown);
> >
> > This needs to be
> >
> > return !gpiod_get_value_raw(ts->gpio_pendown);
>
> There is no such function. The gpio descriptor runpath simply assumes that
> device trees can be trusted.
Sorry, this was supposed to be gpiod_get_raw_value():
https://elixir.bootlin.com/linux/latest/source/drivers/gpio/gpiolib.c#L2854
>
> > I looked at various DTSes we have and they use a mix of active high and
> > active low annotations, so we have to go with the "raw" variant for now,
> > and then update to normal one once we update bad DTSes.
>
> I just sighed and fixed all the device trees :D
Yeah, we we can land the DT fixes ahead of the driver change that would
be great. Otherwise we need a temporary application of
gpiod_get_raw_value().
>
> Yours,
> Linus Walleij
--
Dmitry
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