[U-Boot] [PATCH v5] gpio: dwapb_gpio: Add reset ctrl to driver

[Ley Foon Tan]

On Tue, Sep 4, 2018 at 3:36 PM Marek Vasut <marex at denx.de> wrote:
>
> On 09/04/2018 08:04 AM, Ley Foon Tan wrote:
> > Add code to reset all reset signals as in gpio DT node. A reset property
> > is an optional feature, so only print out a warning and do not fail if a
> > reset property is not present.
> >
> > If a reset property is discovered, then use it to deassert, thus
> > bringing the IP out of reset.
> >
> > Signed-off-by: Ley Foon Tan <ley.foon.tan at intel.com>
>
> Acked-by: Marek Vasut <marex at denx.de>
>
> > ---
> > v5:
> > - Move dev_warn() when return error.
> >
> > v4:
> > - Add struct gpio_dwapb_priv
> >
> > v3:
> > - Add .remove function.
> > - Add error handling when return non-zero from reset_get_bulk().
> >
> > v2:
> > - Move reset to probe() function.
> > ---
> >  drivers/gpio/dwapb_gpio.c |   51 +++++++++++++++++++++++++++++++++++++++++++-
> >  1 files changed, 49 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpio/dwapb_gpio.c b/drivers/gpio/dwapb_gpio.c
> > index 7cf2d47..0f6574d 100644
> > --- a/drivers/gpio/dwapb_gpio.c
> > +++ b/drivers/gpio/dwapb_gpio.c
> > @@ -15,6 +15,7 @@
> >  #include <dm/lists.h>
> >  #include <dm/root.h>
> >  #include <errno.h>
> > +#include <reset.h>
> >
> >  DECLARE_GLOBAL_DATA_PTR;
> >
> > @@ -29,6 +30,10 @@ DECLARE_GLOBAL_DATA_PTR;
> >  #define GPIO_PORTA_EOI               0x4c
> >  #define GPIO_EXT_PORT(p)     (0x50 + (p) * 4)
> >
> > +struct gpio_dwapb_priv {
> > +     struct reset_ctl_bulk   resets;
> > +};
> > +
> >  struct gpio_dwapb_platdata {
> >       const char      *name;
> >       int             bank;
> > @@ -99,13 +104,42 @@ static const struct dm_gpio_ops gpio_dwapb_ops = {
> >       .get_function           = dwapb_gpio_get_function,
> >  };
>
> ^ Am I missing some patch ? I don't have this stuff in my tree and it
> causes fuzz/failure while applying this patch.
You need apply this patch first: https://patchwork.ozlabs.org/patch/958108/

Regards
Ley Foon