[PATCH v2 2/2] dt-bindings: gpio: Add bindings for NXP PCA9570

[PATCH v2 2/2] dt-bindings: gpio: Add bindings for NXP PCA9570

[Sungbo Eo]

This patch adds device tree bindings for the NXP PCA9570,
a 4-bit I2C GPO expander.

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
---
I don't feel I can really maintain this driver, but it seems all yaml docs
have a maintainers field so I just added it...
---
 .../bindings/gpio/gpio-pca9570.yaml           | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml

diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
new file mode 100644
index 000000000000..996b0ed2f58f
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/gpio-pca9570.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PCA9570 I2C GPO expander
+
+maintainers:
+  - Sungbo Eo <mans0n@gorani.run>
+
+properties:
+  compatible:
+    enum:
+      - nxp,pca9570
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    gpio@24 {
+        compatible = "nxp,pca9570";
+        reg = <0x24>;
+        gpio-controller;
+        #gpio-cells = <2>;
+    };
+
+...
-- 
2.27.0

Re: [PATCH v2 2/2] dt-bindings: gpio: Add bindings for NXP PCA9570

[Rob Herring]

On Thu, 25 Jun 2020 16:59:57 +0900, Sungbo Eo wrote:
> This patch adds device tree bindings for the NXP PCA9570,
> a 4-bit I2C GPO expander.
> 
> Signed-off-by: Sungbo Eo <mans0n@gorani.run>
> ---
> I don't feel I can really maintain this driver, but it seems all yaml docs
> have a maintainers field so I just added it...
> ---
>  .../bindings/gpio/gpio-pca9570.yaml           | 42 +++++++++++++++++++
>  1 file changed, 42 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
> 


My bot found errors running 'make dt_binding_check' on your patch:

Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dts:21.13-26: Warning (reg_format): /example-0/gpio@24:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)
Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (pci_device_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: example-0: gpio@24:reg:0: [36] is too short


See https://patchwork.ozlabs.org/patch/1316796

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

pip3 install git+https://github.com/devicetree-org/dt-schema.git@master --upgrade

Please check and re-submit.

Re: [PATCH v2 2/2] dt-bindings: gpio: Add bindings for NXP PCA9570

[Sungbo Eo]

On 2020-06-30 07:01, Rob Herring wrote:
> On Thu, 25 Jun 2020 16:59:57 +0900, Sungbo Eo wrote:
>> This patch adds device tree bindings for the NXP PCA9570,
>> a 4-bit I2C GPO expander.
>>
>> Signed-off-by: Sungbo Eo <mans0n@gorani.run>
>> ---
>> I don't feel I can really maintain this driver, but it seems all yaml docs
>> have a maintainers field so I just added it...
>> ---
>>   .../bindings/gpio/gpio-pca9570.yaml           | 42 +++++++++++++++++++
>>   1 file changed, 42 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
>>
> 
> 
> My bot found errors running 'make dt_binding_check' on your patch:
> 
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dts:21.13-26: Warning (reg_format): /example-0/gpio@24:reg: property has invalid length (4 bytes) (#address-cells == 1, #size-cells == 1)
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (pci_device_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
> /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/gpio/gpio-pca9570.example.dt.yaml: example-0: gpio@24:reg:0: [36] is too short
> 
> 
> See https://patchwork.ozlabs.org/patch/1316796
> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure dt-schema is up to date:
> 
> pip3 install git+https://github.com/devicetree-org/dt-schema.git@master --upgrade
> 
> Please check and re-submit.
> 

Thank you for pointing it out! I didn't noticed it. I'll re-submit an 
updated patch soon.