[U-Boot] [PATCH] gpio: dwapb_gpio: fix broken dev->node

Simon Goldschmidt simon.k.r.goldschmidt at gmail.com
Wed May 22 08:46:53 UTC 2019


On Tue, May 21, 2019 at 10:22 PM Marek Vasut <marex at denx.de> wrote:
>
> On 5/21/19 10:03 PM, Simon Goldschmidt wrote:
> > commit 1b898ffc040b ("gpio: dwapb_gpio: convert to livetree") introduced
> > a bug in that dev->node of the gpio chip was accidentally set to the
> > of_node of its bank subnode.
> >
> > What it meant to do was assign subdev->node, not dev->node.
> >
> > While this doesn't affect too many use cases, iterating over the gpio
> > chip's properties doesn't work any more after that, so fix this.
> >
> > Fixes: commit 1b898ffc040b ("gpio: dwapb_gpio: convert to livetree")
> > Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
> > ---
> >
> > This fixes a commit that is only 12 days old, so it's a fix for v2019.07
> >
> > ---
> >  drivers/gpio/dwapb_gpio.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpio/dwapb_gpio.c b/drivers/gpio/dwapb_gpio.c
> > index 04a2381acd..d6887a396a 100644
> > --- a/drivers/gpio/dwapb_gpio.c
> > +++ b/drivers/gpio/dwapb_gpio.c
> > @@ -190,7 +190,7 @@ static int gpio_dwapb_bind(struct udevice *dev)
> >               if (ret)
> >                       return ret;
> >
> > -             dev->node = node;
> > +             subdev->node = node;
> >               bank++;
> >       }
> >
> >
> Applied, thanks

Looking around 'include/dm/device-internal.h', I just saw that a more
appropriate fix would be to use 'device_bind_ofnode()' instead of calling
'device_bind()' and assigning the node ourself by accessing subdev->node.

Do you want me to send a follow-up or a v2 of this, given that you already
applied this v1?

Regards,
Simon


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