Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1562487

Re: [PATCH v2 3/3] gpio: Support gpio nexus dt bindings

Show all headers | View raw

On Wed, Jan 18, 2017 at 1:50 AM, Stephen Boyd <stephen.boyd@linaro.org> wrote:

> Platforms like 96boards have a standardized connector/expansion
> slot that exposes signals like GPIOs to expansion boards in an
> SoC agnostic way. We'd like the DT overlays for the expansion
> boards to be written once without knowledge of the SoC on the
> other side of the connector. This avoids the unscalable
> combinatorial explosion of a different DT overlay for each
> expansion board and SoC pair.
>
> Now that we have nexus support in the OF core let's change the
> function call here that parses the phandle lists of gpios to use
> the nexus variant. This allows us to remap phandles and their
> arguments through any number of nexus nodes and end up with the
> actual gpio provider being used.
>
> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: Mark Brown <broonie@kernel.org>
> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>

Acked-by: Linus Walleij <linus.walleij@linaro.org>

Provided that patches 1 & 2 go in reviewed and merged
by DT/device core people, they can merge this on top as well.

Yours,
Linus Walleij

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCHv2 0/3] OF phandle nexus support + GPIO nexus Stephen Boyd <stephen.boyd@linaro.org> - 2017-01-18 02:00 +0100
  [PATCH v2 3/3] gpio: Support gpio nexus dt bindings Stephen Boyd <stephen.boyd@linaro.org> - 2017-01-18 02:00 +0100
    Re: [PATCH v2 3/3] gpio: Support gpio nexus dt bindings Linus Walleij <linus.walleij@linaro.org> - 2017-01-19 10:10 +0100
  [PATCH v2 2/3] of: unittest: Add phandle remapping test Stephen Boyd <stephen.boyd@linaro.org> - 2017-01-18 02:00 +0100
  [PATCH v2 1/3] of: Support parsing phandle argument lists through a nexus node Stephen Boyd <stephen.boyd@linaro.org> - 2017-01-18 02:00 +0100
    Re: [PATCH v2 1/3] of: Support parsing phandle argument lists through  a nexus node Rob Herring <robh+dt@kernel.org> - 2017-01-21 00:20 +0100

csiph-web