[v4,1/2] dt-bindings: gpio: Convert STMPE GPIO to YAML schema

This rewrites the STMPE GPIO bindings to a YAML schema.

We add the properties that are used in the widely used
STMPE GPIO device nodes found in the wild, most notably
interrupt support, so interrupt-cells and
interrupt-controller is now part of the bindings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v3->v4:
- Realize that there were actually some old bindings so we
  need to get rid of them as part of this patch.
- Fix blank lines after description: keyword.
ChangeLog v2->v3:
- Use a compact hog node schema backed by the standard hog
  schema.
ChangeLog v1->v2:
- New patch split off from the MFD patch.
---
 .../devicetree/bindings/gpio/gpio-stmpe.txt        | 17 -------
 .../devicetree/bindings/gpio/st,stmpe-gpio.yaml    | 53 ++++++++++++++++++++++
 2 files changed, 53 insertions(+), 17 deletions(-)

On 08/05/2023 14:35, Linus Walleij wrote:
> This rewrites the STMPE GPIO bindings to a YAML schema.
> 
> We add the properties that are used in the widely used
> STMPE GPIO device nodes found in the wild, most notably
> interrupt support, so interrupt-cells and
> interrupt-controller is now part of the bindings.
> 
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

On Mon, May 8, 2023 at 2:35 PM Linus Walleij <linus.walleij@linaro.org> wrote:
>
> This rewrites the STMPE GPIO bindings to a YAML schema.
>
> We add the properties that are used in the widely used
> STMPE GPIO device nodes found in the wild, most notably
> interrupt support, so interrupt-cells and
> interrupt-controller is now part of the bindings.
>
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> ---
> ChangeLog v3->v4:
> - Realize that there were actually some old bindings so we
>   need to get rid of them as part of this patch.
> - Fix blank lines after description: keyword.
> ChangeLog v2->v3:
> - Use a compact hog node schema backed by the standard hog
>   schema.
> ChangeLog v1->v2:
> - New patch split off from the MFD patch.
> ---
>  .../devicetree/bindings/gpio/gpio-stmpe.txt        | 17 -------
>  .../devicetree/bindings/gpio/st,stmpe-gpio.yaml    | 53 ++++++++++++++++++++++
>  2 files changed, 53 insertions(+), 17 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt b/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
> deleted file mode 100644
> index b33f8f02c0d7..000000000000
> --- a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
> +++ /dev/null
> @@ -1,17 +0,0 @@
> -STMPE gpio
> -----------
> -
> -Required properties:
> - - compatible: "st,stmpe-gpio"
> -
> -Optional properties:
> - - st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable
> -   due to different usage (e.g. touch, keypad)
> -
> -Node should be child node of stmpe node to which it belongs.
> -
> -Example:
> -       stmpe_gpio {
> -               compatible = "st,stmpe-gpio";
> -               st,norequest-mask = <0x20>;     //gpio 5 can't be used
> -       };
> diff --git a/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml
> new file mode 100644
> index 000000000000..22c0cae73425
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/st,stmpe-gpio.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: STMicroelectonics Port Expander (STMPE) GPIO Block
> +
> +description:
> +  STMicroelectronics Port Expander (STMPE) is a series of slow
> +  bus controllers for various expanded peripherals such as GPIO, keypad,
> +  touchscreen, ADC, PWM or rotator. It can contain one or several different
> +  peripherals connected to SPI or I2C. These bindings pertain to the
> +  GPIO portions of these expanders.
> +
> +maintainers:
> +  - Linus Walleij <linus.walleij@linaro.org>
> +
> +properties:
> +  compatible:
> +    const: st,stmpe-gpio
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +  "#interrupt-cells":
> +    const: 2
> +
> +  gpio-controller: true
> +
> +  interrupt-controller: true
> +
> +  st,norequest-mask:
> +    description:
> +      A bitmask of GPIO lines that cannot be requested because for
> +      for example not being connected to anything on the system
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +
> +patternProperties:
> +  "^.+-hog(-[0-9]+)?$":
> +    type: object
> +
> +    required:
> +      - gpio-hog
> +
> +additionalProperties: false
> +
> +required:
> +  - compatible
> +  - "#gpio-cells"
> +  - "#interrupt-cells"
> +  - gpio-controller
> +  - interrupt-controller
>
> --
> 2.34.1
>

Applied, thanks!

Bart

On Thu, May 11, 2023 at 4:58 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:

> Applied, thanks!

That works ... but patch 2/2 depends on this one. (uses $ref).
You'd have to give Lee an immutable branch that he can pull
before applying patch 2/2 so he has the dependency, or let him
apply both.

Yours,
Linus Walleij

On Tue, May 16, 2023 at 5:34 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> On Thu, May 11, 2023 at 10:39 PM Linus Walleij <linus.walleij@linaro.org> wrote:
> >
> > On Thu, May 11, 2023 at 4:58 PM Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> >
> > > Applied, thanks!
> >
> > That works ... but patch 2/2 depends on this one. (uses $ref).
> > You'd have to give Lee an immutable branch that he can pull
> > before applying patch 2/2 so he has the dependency, or let him
> > apply both.
> >
> > Yours,
> > Linus Walleij
>
> Sure:
>
> The following changes since commit ac9a78681b921877518763ba0e89202254349d1b:
>
>   Linux 6.4-rc1 (2023-05-07 13:34:35 -0700)
>
> are available in the Git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git
> tags/v6.4-stmpe-gpio
>
> for you to fetch changes up to 6c19974d1e83fba2cca1cbea2fbf250f093eb5ed:
>
>   dt-bindings: gpio: Convert STMPE GPIO to YAML schema (2023-05-11
> 16:58:04 +0200)

Hey cool :D

Lee if you pull this in you can apply 2/2 on top if it checks out.

Yours,
Linus Walleij