On Thu, Sep 21, 2023 at 12:23:45AM +0200, Linus Walleij wrote:
> This rewrites the IXP4xx GPIO bindings to use YAML schema,
> and adds two new properties to enable fixed clock output on
> pins 14 and 15.
>
> Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> ---
> .../devicetree/bindings/gpio/intel,ixp4xx-gpio.txt | 38 ------------
> .../bindings/gpio/intel,ixp4xx-gpio.yaml | 70 ++++++++++++++++++++++
> MAINTAINERS | 2 +-
> 3 files changed, 71 insertions(+), 39 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt b/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt
> deleted file mode 100644
> index 8dc41ed99685..000000000000
> --- a/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.txt
> +++ /dev/null
> @@ -1,38 +0,0 @@
> -Intel IXP4xx XScale Networking Processors GPIO
> -
> -This GPIO controller is found in the Intel IXP4xx processors.
> -It supports 16 GPIO lines.
> -
> -The interrupt portions of the GPIO controller is hierarchical:
> -the synchronous edge detector is part of the GPIO block, but the
> -actual enabling/disabling of the interrupt line is done in the
> -main IXP4xx interrupt controller which has a 1:1 mapping for
> -the first 12 GPIO lines to 12 system interrupts.
> -
> -The remaining 4 GPIO lines can not be used for receiving
> -interrupts.
> -
> -The interrupt parent of this GPIO controller must be the
> -IXP4xx interrupt controller.
> -
> -Required properties:
> -
> -- compatible : Should be
> - "intel,ixp4xx-gpio"
> -- reg : Should contain registers location and length
> -- gpio-controller : marks this as a GPIO controller
> -- #gpio-cells : Should be 2, see gpio/gpio.txt
> -- interrupt-controller : marks this as an interrupt controller
> -- #interrupt-cells : a standard two-cell interrupt, see
> - interrupt-controller/interrupts.txt
> -
> -Example:
> -
> -gpio0: gpio@c8004000 {
> - compatible = "intel,ixp4xx-gpio";
> - reg = <0xc8004000 0x1000>;
> - gpio-controller;
> - #gpio-cells = <2>;
> - interrupt-controller;
> - #interrupt-cells = <2>;
> -};
> diff --git a/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.yaml b/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.yaml
> new file mode 100644
> index 000000000000..bb1fc393bd8c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/intel,ixp4xx-gpio.yaml
> @@ -0,0 +1,70 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/intel,ixp4xx-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Intel IXP4xx XScale Networking Processors GPIO Controller
> +
> +description: This GPIO controller is found in the Intel IXP4xx
> + processors. It supports 16 GPIO lines.
> + The interrupt portions of the GPIO controller is hierarchical.
> + The synchronous edge detector is part of the GPIO block, but the
> + actual enabling/disabling of the interrupt line is done in the
> + main IXP4xx interrupt controller which has a 1-to-1 mapping for
> + the first 12 GPIO lines to 12 system interrupts.
> + The remaining 4 GPIO lines can not be used for receiving
> + interrupts.
> + The interrupt parent of this GPIO controller must be the
> + IXP4xx interrupt controller.
> + GPIO 14 and 15 can be used as clock outputs rather than GPIO,
> + and this can be enabled by a special flag.
Do you care about the formatting here? If so, you are missing a '|'. If
not, you have strange line breaks.
> +
> +maintainers:
> + - Linus Walleij <linus.walleij@xxxxxxxxxx>
> +
> +properties:
> + compatible:
> + const: intel,ixp4xx-gpio
> +
> + reg:
> + maxItems: 1
> +
> + gpio-controller: true
Blank line between DT properties
> + "#gpio-cells":
> + const: 2
> +
> + interrupt-controller: true
Blank line
> + "#interrupt-cells":
> + const: 2
Otherwise, with those nits fixed:
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
