Re: [PATCH] gpio: fix getting nonexclusive gpiods from DT

[Bartosz Golaszewski <brgl@xxxxxxxx>]

pon., 18 lis 2019 o 11:33 Marco Felsch <m.felsch@xxxxxxxxxxxxxx> napisał(a):
>
> Hi Bart,
>
> On 19-09-17 09:53, Bartosz Golaszewski wrote:
> > pon., 16 wrz 2019 o 15:43 Marco Felsch <m.felsch@xxxxxxxxxxxxxx> napisał(a):
> > >
> > > Since commit ec757001c818 ("gpio: Enable nonexclusive gpiods from DT
> > > nodes") we are able to get GPIOD_FLAGS_BIT_NONEXCLUSIVE marked gpios.
> > > Currently the gpiolib uses the wrong flags variable for the check. We
> > > need to check the gpiod_flags instead of the of_gpio_flags else we
> > > return -EBUSY for GPIOD_FLAGS_BIT_NONEXCLUSIVE marked and requested
> > > gpiod's.
> > >
> > > Fixes: ec757001c818 gpio: Enable nonexclusive gpiods from DT nodes
> > > Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> > > ---
> > >  drivers/gpio/gpiolib.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
> > > index d9074191edef..e4203c1eb869 100644
> > > --- a/drivers/gpio/gpiolib.c
> > > +++ b/drivers/gpio/gpiolib.c
> > > @@ -4303,7 +4303,7 @@ struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
> > >         transitory = flags & OF_GPIO_TRANSITORY;
> > >
> > >         ret = gpiod_request(desc, label);
> > > -       if (ret == -EBUSY && (flags & GPIOD_FLAGS_BIT_NONEXCLUSIVE))
> > > +       if (ret == -EBUSY && (dflags & GPIOD_FLAGS_BIT_NONEXCLUSIVE))
> > >                 return desc;
> > >         if (ret)
> > >                 return ERR_PTR(ret);
> > > --
> > > 2.20.1
> > >
> >
> > Queued for fixes, thanks.
>
> I rebased my patch stack ontop of -rc8 and didn't saw this commit. Is
> this intended?
>

I'm not sure what you mean, it's been in mainline since v5.4-rc2 as
commit be7ae45cfea9 ("gpio: fix getting nonexclusive gpiods from DT").

Bart

> Regards,
>   Marco
>
> > Bart
> >
>
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