Allwinner H616 PWM block is quite different from the A10 or H6, but at
the end, it uses the same clocks as the H6; so the sun4i pwm binding can
be used.
It has 6 channels than can generate PWM waveforms or clocks if bypass is
enabled.

Suggested-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
---
 .../bindings/pwm/allwinner,sun4i-a10-pwm.yaml | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
index 1197858e431f..4f58110ec98f 100644
--- a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
@@ -14,6 +14,9 @@ properties:
   "#pwm-cells":
     const: 3
 
+  "#clock-cells":
+    const: 1
+
   compatible:
     oneOf:
       - const: allwinner,sun4i-a10-pwm
@@ -36,6 +39,7 @@ properties:
           - const: allwinner,sun50i-h5-pwm
           - const: allwinner,sun5i-a13-pwm
       - const: allwinner,sun50i-h6-pwm
+      - const: allwinner,sun50i-h616-pwm
 
   reg:
     maxItems: 1
@@ -62,7 +66,9 @@ allOf:
       properties:
         compatible:
           contains:
-            const: allwinner,sun50i-h6-pwm
+            enum:
+              - allwinner,sun50i-h6-pwm
+              - allwinner,sun50i-h616-pwm
 
     then:
       properties:
@@ -83,6 +89,17 @@ allOf:
         clocks:
           maxItems: 1
 
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: allwinner,sun50i-h616-pwm
+
+    then:
+      properties:
+        "#clock-cells": false
+
 required:
   - compatible
   - reg
-- 
2.47.3

On 17/12/2025 09:25, Richard Genoud wrote:
> Allwinner H616 PWM block is quite different from the A10 or H6, but at
> the end, it uses the same clocks as the H6; so the sun4i pwm binding can
> be used.
> It has 6 channels than can generate PWM waveforms or clocks if bypass is
> enabled.
> 
> Suggested-by: Krzysztof Kozlowski <krzk@kernel.org>

Hm? Where did I suggest anything about adding clock cells or documenting
this allwinner device?


Best regards,
Krzysztof

Le 18/12/2025 à 11:15, Krzysztof Kozlowski a écrit :
> On 17/12/2025 09:25, Richard Genoud wrote:
>> Allwinner H616 PWM block is quite different from the A10 or H6, but at
>> the end, it uses the same clocks as the H6; so the sun4i pwm binding can
>> be used.
>> It has 6 channels than can generate PWM waveforms or clocks if bypass is
>> enabled.
>>
>> Suggested-by: Krzysztof Kozlowski <krzk@kernel.org>
> 
> Hm? Where did I suggest anything about adding clock cells or documenting
> this allwinner device?
Hum, indeed.
The suggestion, as I understood it, was to re-use the sun4i PWM binding, 
which is why this patch exists now. But I agree, the suggestion wasn't 
on the content itself.
Sorry if it's misleading.

> 
> 
> Best regards,
> Krzysztof

Regards,
Richard

Dne sreda, 17. december 2025 ob 09:25:01 Srednjeevropski standardni čas je Richard Genoud napisal(a):
> Allwinner H616 PWM block is quite different from the A10 or H6, but at
> the end, it uses the same clocks as the H6; so the sun4i pwm binding can
> be used.
> It has 6 channels than can generate PWM waveforms or clocks if bypass is
> enabled.
> 
> Suggested-by: Krzysztof Kozlowski <krzk@kernel.org>
> Signed-off-by: Richard Genoud <richard.genoud@bootlin.com>
> ---
>  .../bindings/pwm/allwinner,sun4i-a10-pwm.yaml | 19 ++++++++++++++++++-
>  1 file changed, 18 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
> index 1197858e431f..4f58110ec98f 100644
> --- a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
> +++ b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
> @@ -14,6 +14,9 @@ properties:
>    "#pwm-cells":
>      const: 3
>  
> +  "#clock-cells":
> +    const: 1

Why #clock-cells? I don't see any reason to add it.

Other properties seem fine.

Best regards,
Jernej

> +
>    compatible:
>      oneOf:
>        - const: allwinner,sun4i-a10-pwm
> @@ -36,6 +39,7 @@ properties:
>            - const: allwinner,sun50i-h5-pwm
>            - const: allwinner,sun5i-a13-pwm
>        - const: allwinner,sun50i-h6-pwm
> +      - const: allwinner,sun50i-h616-pwm
>  
>    reg:
>      maxItems: 1
> @@ -62,7 +66,9 @@ allOf:
>        properties:
>          compatible:
>            contains:
> -            const: allwinner,sun50i-h6-pwm
> +            enum:
> +              - allwinner,sun50i-h6-pwm
> +              - allwinner,sun50i-h616-pwm
>  
>      then:
>        properties:
> @@ -83,6 +89,17 @@ allOf:
>          clocks:
>            maxItems: 1
>  
> +  - if:
> +      not:
> +        properties:
> +          compatible:
> +            contains:
> +              const: allwinner,sun50i-h616-pwm
> +
> +    then:
> +      properties:
> +        "#clock-cells": false
> +
>  required:
>    - compatible
>    - reg
>