diff mbox series

[v3,1/2] spi: dt-bindings: amlogic, meson-gx-spicc: Add pinctrl names for SPI signal states

Message ID 20221004-up-aml-fix-spi-v3-1-89de126fd163@baylibre.com
State New
Headers
Series spi: amlogic: meson-spicc: Use pinctrl to drive CLK line when idle |

Commit Message

Amjad Ouled-Ameur Oct. 19, 2022, 2:01 p.m. UTC 
  SPI pins of the SPICC Controller in Meson-GX needs to be controlled by
pin biais when idle. Therefore define three pinctrl names:
- default: SPI pins are controlled by spi function.
- idle-high: SCLK pin is pulled-up, but MOSI/MISO are still controlled
by spi function.
- idle-low: SCLK pin is pulled-down, but MOSI/MISO are still controlled
by spi function.

Reported-by: Da Xue <da@libre.computer>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
---
 .../bindings/spi/amlogic,meson-gx-spicc.yaml       | 67 ++++++++++++++--------
 1 file changed, 42 insertions(+), 25 deletions(-)

Comments

Krzysztof Kozlowski Oct. 19, 2022, 2:29 p.m. UTC | #1 
On 19/10/2022 10:01, Amjad Ouled-Ameur wrote:
> SPI pins of the SPICC Controller in Meson-GX needs to be controlled by
> pin biais when idle. Therefore define three pinctrl names:
> - default: SPI pins are controlled by spi function.
> - idle-high: SCLK pin is pulled-up, but MOSI/MISO are still controlled
> by spi function.
> - idle-low: SCLK pin is pulled-down, but MOSI/MISO are still controlled
> by spi function.
>


> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - amlogic,meson-gx-spicc
> +
> +    then:
> +      properties:
> +        pinctrl-names:
> +          minItems: 1
> +          items:
> +            - const: default
> +            - const: idle-high
> +            - const: idle-low

You should also define in such case pinctrl-0 and others.

Best regards,
Krzysztof
Neil Armstrong Oct. 19, 2022, 4:53 p.m. UTC | #2 
On 19/10/2022 16:29, Krzysztof Kozlowski wrote:
> On 19/10/2022 10:01, Amjad Ouled-Ameur wrote:
>> SPI pins of the SPICC Controller in Meson-GX needs to be controlled by
>> pin biais when idle. Therefore define three pinctrl names:
>> - default: SPI pins are controlled by spi function.
>> - idle-high: SCLK pin is pulled-up, but MOSI/MISO are still controlled
>> by spi function.
>> - idle-low: SCLK pin is pulled-down, but MOSI/MISO are still controlled
>> by spi function.
>>
> 
> 
>> +
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            enum:
>> +              - amlogic,meson-gx-spicc
>> +
>> +    then:
>> +      properties:
>> +        pinctrl-names:
>> +          minItems: 1
>> +          items:
>> +            - const: default
>> +            - const: idle-high
>> +            - const: idle-low
> 
> You should also define in such case pinctrl-0 and others.

Ok I thought it would be covered by the pinctrl-consumer.yaml
but yeah we should allow pinctrl-1 and pinctrl-2 here aswell by adding:

             pinctrl-1: true
             pinctrl-2: true

> 
> Best regards,
> Krzysztof
> 
Neil
Rob Herring Oct. 19, 2022, 11:31 p.m. UTC | #3 
On Wed, 19 Oct 2022 16:01:03 +0200, Amjad Ouled-Ameur wrote:
> SPI pins of the SPICC Controller in Meson-GX needs to be controlled by
> pin biais when idle. Therefore define three pinctrl names:
> - default: SPI pins are controlled by spi function.
> - idle-high: SCLK pin is pulled-up, but MOSI/MISO are still controlled
> by spi function.
> - idle-low: SCLK pin is pulled-down, but MOSI/MISO are still controlled
> by spi function.
> 
> Reported-by: Da Xue <da@libre.computer>
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> Signed-off-by: Amjad Ouled-Ameur <aouledameur@baylibre.com>
> ---
>  .../bindings/spi/amlogic,meson-gx-spicc.yaml       | 67 ++++++++++++++--------
>  1 file changed, 42 insertions(+), 25 deletions(-)
> 

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:
./Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml:46:1: [error] duplication of key "allOf" in mapping (key-duplicates)

dtschema/dtc warnings/errors:
./Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml:46:1: found duplicate key "allOf" with value "[]" (original value: "[]")
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml: ignoring, error parsing file
make[1]: *** Deleting file 'Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.example.dts'
Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml:46:1: found duplicate key "allOf" with value "[]" (original value: "[]")
make[1]: *** [Documentation/devicetree/bindings/Makefile:26: Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1492: dt_binding_check] Error 2

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.
Krzysztof Kozlowski Oct. 20, 2022, 12:49 p.m. UTC | #4 
>>> +      properties:
>>> +        pinctrl-names:
>>> +          minItems: 1
>>> +          items:
>>> +            - const: default
>>> +            - const: idle-high
>>> +            - const: idle-low
>>
>> You should also define in such case pinctrl-0 and others.
> 
> Ok I thought it would be covered by the pinctrl-consumer.yaml
> but yeah we should allow pinctrl-1 and pinctrl-2 here aswell by adding:
> 
>              pinctrl-1: true
>              pinctrl-2: true
> 
>

Yes.

Best regards,
Krzysztof
Amjad Ouled-Ameur Oct. 21, 2022, 12:54 p.m. UTC | #5 
Hi

On 10/20/22 14:49, Krzysztof Kozlowski wrote:
>>>> +      properties:
>>>> +        pinctrl-names:
>>>> +          minItems: 1
>>>> +          items:
>>>> +            - const: default
>>>> +            - const: idle-high
>>>> +            - const: idle-low
>>> You should also define in such case pinctrl-0 and others.
>> Ok I thought it would be covered by the pinctrl-consumer.yaml
>> but yeah we should allow pinctrl-1 and pinctrl-2 here aswell by adding:
>>
>>               pinctrl-1: true
>>               pinctrl-2: true
>>
>>
In such case, should I define pinctrl- as part of the if statement, as shown below,

or before allOf ?

[...]

   - if:
       properties:
         compatible:
           contains:
             enum:
               - amlogic,meson-gx-spicc

     then:
       properties:
         pinctrl-0: true
         pinctrl-1: true
         pinctrl-2: true

         pinctrl-names:
           minItems: 1
           items:
             - const: default
             - const: idle-high
             - const: idle-low

[...]

Regards

Amjad

> Yes.
>
> Best regards,
> Krzysztof
>
Krzysztof Kozlowski Oct. 21, 2022, 12:59 p.m. UTC | #6 
On 21/10/2022 08:54, Amjad Ouled-Ameur wrote:
> Hi
> 
> On 10/20/22 14:49, Krzysztof Kozlowski wrote:
>>>>> +      properties:
>>>>> +        pinctrl-names:
>>>>> +          minItems: 1
>>>>> +          items:
>>>>> +            - const: default
>>>>> +            - const: idle-high
>>>>> +            - const: idle-low
>>>> You should also define in such case pinctrl-0 and others.
>>> Ok I thought it would be covered by the pinctrl-consumer.yaml
>>> but yeah we should allow pinctrl-1 and pinctrl-2 here aswell by adding:
>>>
>>>               pinctrl-1: true
>>>               pinctrl-2: true
>>>
>>>
> In such case, should I define pinctrl- as part of the if statement, as shown below,
> 
> or before allOf ?

The same as pinctrl-names, so part of allOf.

> 
> [...]
> 
>    - if:
>        properties:
>          compatible:
>            contains:
>              enum:
>                - amlogic,meson-gx-spicc
> 
>      then:
>        properties:
>          pinctrl-0: true
>          pinctrl-1: true
>          pinctrl-2: true
> 
>          pinctrl-names:
>            minItems: 1
>            items:
>              - const: default
>              - const: idle-high
>              - const: idle-low

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
index 0c10f7678178..3e47fe7760a8 100644
--- a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
+++ b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
@@ -43,31 +43,48 @@  properties:
     minItems: 1
     maxItems: 2
 
-if:
-  properties:
-    compatible:
-      contains:
-        enum:
-          - amlogic,meson-g12a-spicc
-
-then:
-  properties:
-    clocks:
-      minItems: 2
-
-    clock-names:
-      items:
-        - const: core
-        - const: pclk
-
-else:
-  properties:
-    clocks:
-      maxItems: 1
-
-    clock-names:
-      items:
-        - const: core
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson-g12a-spicc
+
+    then:
+      properties:
+        clocks:
+          minItems: 2
+
+        clock-names:
+          items:
+            - const: core
+            - const: pclk
+
+    else:
+      properties:
+        clocks:
+          maxItems: 1
+
+        clock-names:
+          items:
+            - const: core
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson-gx-spicc
+
+    then:
+      properties:
+        pinctrl-names:
+          minItems: 1
+          items:
+            - const: default
+            - const: idle-high
+            - const: idle-low
 
 required:
   - compatible