[v2,1/3] dt-bindings: gpio: add YAML description for rockchip,gpio-bank

Current dts files with "rockchip,gpio-bank" subnodes
are manually verified. In order to automate this process
the text that describes the compatible in rockchip,pinctrl.txt
is removed and converted to YAML in rockchip,gpio-bank.yaml.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
---
Changed V2:
  changed example gpio nodename
---
 .../bindings/gpio/rockchip,gpio-bank.yaml          | 82 ++++++++++++++++++++++
 .../bindings/pinctrl/rockchip,pinctrl.txt          | 58 +--------------
 2 files changed, 83 insertions(+), 57 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml

On 4/13/21 1:22 AM, Peter Geis wrote:
> On Mon, Apr 12, 2021 at 6:38 PM Johan Jonker <jbx6244@gmail.com> wrote:

>>

>> Currently all gpio nodenames are sort of identical to there label.

>> Nodenames should be of a generic type, so change them all.

> 

> Currently the rockchip pinctrl driver checks np->name against the

> bank->name and if they do not match it does not set the gpio-bank as

> valid.

> The new GPIO driver appears to follow a similar method.

> This will break the driver without a correction.


Given Rob's comment in version 1 maybe combine this serie with yours?
With Heiko's blessing maybe add support both for legacy and for the new
format?

Johan

> 

> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/drivers/pinctrl/pinctrl-rockchip.c?h=next-20210412#n3836

> 

>>

>> Signed-off-by: Johan Jonker <jbx6244@gmail.com>

>> ---

On Tue, 13 Apr 2021 00:36:15 +0200, Johan Jonker wrote:
> Current dts files with "rockchip,gpio-bank" subnodes

> are manually verified. In order to automate this process

> the text that describes the compatible in rockchip,pinctrl.txt

> is removed and converted to YAML in rockchip,gpio-bank.yaml.

> 

> Signed-off-by: Johan Jonker <jbx6244@gmail.com>

> ---

> Changed V2:

>   changed example gpio nodename

> ---

>  .../bindings/gpio/rockchip,gpio-bank.yaml          | 82 ++++++++++++++++++++++

>  .../bindings/pinctrl/rockchip,pinctrl.txt          | 58 +--------------

>  2 files changed, 83 insertions(+), 57 deletions(-)

>  create mode 100644 Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml

> 


Reviewed-by: Rob Herring <robh@kernel.org>

On Tue, Apr 13, 2021 at 12:36 AM Johan Jonker <jbx6244@gmail.com> wrote:
>
> Current dts files with "rockchip,gpio-bank" subnodes
> are manually verified. In order to automate this process
> the text that describes the compatible in rockchip,pinctrl.txt
> is removed and converted to YAML in rockchip,gpio-bank.yaml.
>
> Signed-off-by: Johan Jonker <jbx6244@gmail.com>
> ---
> Changed V2:
>   changed example gpio nodename
> ---
>  .../bindings/gpio/rockchip,gpio-bank.yaml          | 82 ++++++++++++++++++++++
>  .../bindings/pinctrl/rockchip,pinctrl.txt          | 58 +--------------
>  2 files changed, 83 insertions(+), 57 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
> new file mode 100644
> index 000000000..d993e002c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
> @@ -0,0 +1,82 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/rockchip,gpio-bank.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Rockchip GPIO bank
> +
> +maintainers:
> +  - Heiko Stuebner <heiko@sntech.de>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - rockchip,gpio-bank
> +      - rockchip,rk3188-gpio-bank0
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  gpio-controller: true
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +  interrupt-controller: true
> +
> +  "#interrupt-cells":
> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - gpio-controller
> +  - "#gpio-cells"
> +  - interrupt-controller
> +  - "#interrupt-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    pinctrl: pinctrl {
> +      #address-cells = <1>;
> +      #size-cells = <1>;
> +      ranges;
> +
> +      gpio0: gpio@2000a000 {
> +        compatible = "rockchip,rk3188-gpio-bank0";
> +        reg = <0x2000a000 0x100>;
> +        interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&clk_gates8 9>;
> +
> +        gpio-controller;
> +        #gpio-cells = <2>;
> +
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +      };
> +
> +      gpio1: gpio@2003c000 {
> +        compatible = "rockchip,gpio-bank";
> +        reg = <0x2003c000 0x100>;
> +        interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&clk_gates8 10>;
> +
> +        gpio-controller;
> +        #gpio-cells = <2>;
> +
> +        interrupt-controller;
> +        #interrupt-cells = <2>;
> +      };
> +    };
> diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
> index d3eae61a3..4719a6a07 100644
> --- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
> +++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
> @@ -50,23 +50,7 @@ Deprecated properties for iomux controller:
>          Use rockchip,grf and rockchip,pmu described above instead.
>
>  Required properties for gpio sub nodes:
> -  - compatible: "rockchip,gpio-bank"
> -  - reg: register of the gpio bank (different than the iomux registerset)
> -  - interrupts: base interrupt of the gpio bank in the interrupt controller
> -  - clocks: clock that drives this bank
> -  - gpio-controller: identifies the node as a gpio controller and pin bank.
> -  - #gpio-cells: number of cells in GPIO specifier. Since the generic GPIO
> -    binding is used, the amount of cells must be specified as 2. See generic
> -    GPIO binding documentation for description of particular cells.
> -  - interrupt-controller: identifies the controller node as interrupt-parent.
> -  - #interrupt-cells: the value of this property should be 2 and the interrupt
> -    cells should use the standard two-cell scheme described in
> -    bindings/interrupt-controller/interrupts.txt
> -
> -Deprecated properties for gpio sub nodes:
> -  - compatible: "rockchip,rk3188-gpio-bank0"
> -  - reg: second element: separate pull register for rk3188 bank0, use
> -        rockchip,pmu described above instead
> +See rockchip,gpio-bank.yaml
>
>  Required properties for pin configuration node:
>    - rockchip,pins: 3 integers array, represents a group of pins mux and config
> @@ -127,43 +111,3 @@ uart2: serial@20064000 {
>         pinctrl-names = "default";
>         pinctrl-0 = <&uart2_xfer>;
>  };
> -
> -Example for rk3188:
> -
> -       pinctrl@20008000 {
> -               compatible = "rockchip,rk3188-pinctrl";
> -               rockchip,grf = <&grf>;
> -               rockchip,pmu = <&pmu>;
> -               #address-cells = <1>;
> -               #size-cells = <1>;
> -               ranges;
> -
> -               gpio0: gpio0@2000a000 {
> -                       compatible = "rockchip,rk3188-gpio-bank0";
> -                       reg = <0x2000a000 0x100>;
> -                       interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
> -                       clocks = <&clk_gates8 9>;
> -
> -                       gpio-controller;
> -                       #gpio-cells = <2>;
> -
> -                       interrupt-controller;
> -                       #interrupt-cells = <2>;
> -               };
> -
> -               gpio1: gpio1@2003c000 {
> -                       compatible = "rockchip,gpio-bank";
> -                       reg = <0x2003c000 0x100>;
> -                       interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
> -                       clocks = <&clk_gates8 10>;
> -
> -                       gpio-controller;
> -                       #gpio-cells = <2>;
> -
> -                       interrupt-controller;
> -                       #interrupt-cells = <2>;
> -               };
> -
> -               ...
> -
> -       };
> --
> 2.11.0
>

Applied, thanks!

Bartosz