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

Groups > linux.kernel > #1254089

Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node

Show all headers | View raw

On Mon, Oct 19, 2015 at 12:43 AM, Pramod Kumar <pramodku@broadcom.com> wrote:
> Add ngpios property to the gpio controller's DT node so that controller
> driver extracts total number of gpio lines present in controller
> from DT and removes dependency on driver.
>
> Signed-off-by: Pramod Kumar <pramodku@broadcom.com>
> Reviewed-by: Ray Jui <rjui@broadcom.com>
> Reviewed-by: Scott Branden <sbranden@broadcom.com>
> ---
>  Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
> index f92b833..655a8d7 100644
> --- a/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
> +++ b/Documentation/devicetree/bindings/pinctrl/brcm,cygnus-gpio.txt
> @@ -10,6 +10,9 @@ Required properties:
>      Define the base and range of the I/O address space that contains the Cygnus
>  GPIO/PINCONF controller registers
>
> +- ngpios:
> +    Total number of GPIOs the controller provides

This must be optional for compatibility and the driver needs to handle
it not present.

> +
>  - #gpio-cells:
>      Must be two. The first cell is the GPIO pin number (within the
>  controller's pin space) and the second cell is used for the following:
> @@ -57,6 +60,7 @@ Example:
>                 compatible = "brcm,cygnus-ccm-gpio";
>                 reg = <0x1800a000 0x50>,
>                       <0x0301d164 0x20>;
> +               ngpios = <24>;
>                 #gpio-cells = <2>;
>                 gpio-controller;
>                 interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
> @@ -78,6 +82,7 @@ Example:
>         gpio_asiu: gpio@180a5000 {
>                 compatible = "brcm,cygnus-asiu-gpio";
>                 reg = <0x180a5000 0x668>;
> +               ngpios = <146>;
>                 #gpio-cells = <2>;
>                 gpio-controller;
>                 interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
> --
> 1.9.1
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

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

Thread

[PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node Pramod Kumar <pramodku@broadcom.com> - 2015-10-19 07:50 +0200
  Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node Rob Herring <robh+dt@kernel.org> - 2015-10-22 20:50 +0200
    Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller  node Ray Jui <rjui@broadcom.com> - 2015-10-22 21:00 +0200
      Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node Rob Herring <robh+dt@kernel.org> - 2015-10-23 01:50 +0200
        Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2015-10-23 11:10 +0200
          Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node Rob Herring <robh+dt@kernel.org> - 2015-10-23 14:00 +0200
            Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2015-10-23 15:10 +0200
              Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller  node Ray Jui <rjui@broadcom.com> - 2015-10-23 18:10 +0200
                RE: [PATCH 05/11] dt-binding: Add ngpios property to GPIO  controller node Pramod Kumar <pramodku@broadcom.com> - 2015-10-26 18:10 +0100
                Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller  node Ray Jui <rjui@broadcom.com> - 2015-10-26 18:20 +0100
                RE: [PATCH 05/11] dt-binding: Add ngpios property to GPIO  controller node Pramod Kumar <pramodku@broadcom.com> - 2015-10-26 19:10 +0100
                Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller  node Ray Jui <rjui@broadcom.com> - 2015-10-26 19:10 +0100
  Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node Linus Walleij <linus.walleij@linaro.org> - 2015-10-27 10:50 +0100
    RE: [PATCH 05/11] dt-binding: Add ngpios property to GPIO  controller node Pramod Kumar <pramodku@broadcom.com> - 2015-10-28 06:20 +0100

csiph-web