Add binding document for the imx-scu gpio driver.

Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
---
 .../bindings/gpio/fsl,imx8-scu-gpio.yaml      | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/fsl,imx8-scu-gpio.yaml

diff --git a/Documentation/devicetree/bindings/gpio/fsl,imx8-scu-gpio.yaml b/Documentation/devicetree/bindings/gpio/fsl,imx8-scu-gpio.yaml
new file mode 100644
index 000000000000..d06e91402666
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/fsl,imx8-scu-gpio.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/fsl,imx8-scu-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO driver over IMX SCU firmware API
+
+maintainers:
+  - Shenwei Wang <shenwei.wang@nxp.com>
+
+description: |
+  This module provides the standard interface to control the
+  resource pins in SCU domain on i.MX8 platforms.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8-scu-gpio
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-controller: true
+
+required:
+  - compatible
+  - "#gpio-cells"
+  - gpio-controller
+
+additionalProperties: false
+
+examples:
+  - |
+    gpio@scu {
+        compatible = "fsl,imx8-scu-gpio";
+        gpio-controller;
+        #gpio-cells = <2>;
+    };
-- 
2.25.1

On 04/08/2022 20:49, Shenwei Wang wrote:
> +
> +properties:
> +  compatible:
> +    enum:
> +      - fsl,imx8-scu-gpio
> +
> +  "#gpio-cells":
> +    const: 2
> +
> +  gpio-controller: true
> +
> +required:
> +  - compatible
> +  - "#gpio-cells"
> +  - gpio-controller
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    gpio@scu {

Does not look like you tested the bindings. Please run `make
dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).


Best regards,
Krzysztof

On Thu, 04 Aug 2022 13:49:06 -0500, Shenwei Wang wrote:
> Add binding document for the imx-scu gpio driver.
> 
> Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com>
> ---
>  .../bindings/gpio/fsl,imx8-scu-gpio.yaml      | 39 +++++++++++++++++++
>  1 file changed, 39 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/fsl,imx8-scu-gpio.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/gpio/fsl,imx8-scu-gpio.example.dts:18.18-22.11: Warning (unit_address_vs_reg): /example-0/gpio@scu: node has a unit name, but no reg or ranges property

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.