On Fri, Oct 28, 2016 at 09:53:38AM -0700, Tony Lindgren wrote:
> * Tony Lindgren <tony@xxxxxxxxxxx> [161027 07:59]:
> > * Linus Walleij <linus.walleij@xxxxxxxxxx> [161027 00:57]:
> > > On Tue, Oct 25, 2016 at 6:45 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote:
> > > > +/*
> > > > + * For pinctrl binding, typically #pinctrl-cells is for the pin controller
> > > > + * device, so either parent or grandparent. See pinctrl-bindings.txt.
> > > > + */
> > > > +static int pinctrl_find_cells_size(const struct device_node *np,
> > > > + const char *cells_name)
> > > > +{
> > > > + int cells_size, error;
> > > > +
> > > > + error = of_property_read_u32(np->parent, cells_name, &cells_size);
> > > > + if (error) {
> > > > + error = of_property_read_u32(np->parent->parent,
> > > > + cells_name, &cells_size);
> > > > + if (error)
> > > > + return -ENOENT;
> > > > + }
> > > > +
> > > > + return cells_size;
> > > > +}
> > >
> > > Can't we just hardcode this to "#pinctrl-cells" and skip the cells_name
> > > parameter? We can parametrize it the day we need it instead.
> >
> > Sure we can do that.
> >
> > > The rest of the helpers look nice and clean.
> >
> > OK cool thanks,
>
> Below is an updated version of this patch with documentation updated
> and cells_name removed. I'll repost the whole series once the DT
> binding has been reviewed.
>
> Regards,
>
> Tony
> 8< -------------------------
> From tony Mon Sep 17 00:00:00 2001
> From: Tony Lindgren <tony@xxxxxxxxxxx>
> Date: Tue, 25 Oct 2016 08:33:34 -0700
> Subject: [PATCH] pinctrl: Introduce generic #pinctrl-cells and
> pinctrl_parse_index_with_args
>
> Introduce #pinctrl-cells helper binding and generic helper functions
> pinctrl_count_index_with_args() and pinctrl_parse_index_with_args().
>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> ---
> .../bindings/pinctrl/pinctrl-bindings.txt | 44 ++++++-
Acked-by: Rob Herring <robh@xxxxxxxxxx>
> drivers/pinctrl/devicetree.c | 144 +++++++++++++++++++++
> drivers/pinctrl/devicetree.h | 21 +++
> 3 files changed, 208 insertions(+), 1 deletion(-)
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