dt-bindings: pinctrl: brcm,nsp-gpio: Convert to DT schema

The brcm,nsp-gpio-a compatible used by the NSP GPIO controller was only
documented in the legacy text binding, so dtbs_check reported "failed to
match any schema" for the gpio@20 node in bcm-nsp.dtsi.

Convert the text binding to DT schema. Beyond a direct conversion:

- Require pin configuration nodes to use a '-pins' suffix and GPIO hogs
  a '-hog' suffix, as the old example used arbitrary node names. No
  in-tree DTS has child nodes under this controller, so nothing is
  affected.
- Document slew-rate, which the driver supports but the text binding
  never listed.
- Add #interrupt-cells and gpio-line-names, and make #interrupt-cells
  depend on interrupt-controller.

Assisted-by: LLM
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Linus Walleij <linusw@kernel.org>

0 files changed, 0 insertions, 0 deletions