diff mbox series

[RFC,v2,2/6] dt-bindings: opp: accept array of frequencies

Message ID 20220411154347.491396-3-krzysztof.kozlowski@linaro.org (mailing list archive)
State Superseded
Headers show
Series ufs: set power domain performance state when scaling gears | expand

Commit Message

Krzysztof Kozlowski April 11, 2022, 3:43 p.m. UTC 
Devices might need to control several clocks when scaling the frequency
and voltage.  Allow passing array of clock frequencies, similarly to the
voltages.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 Documentation/devicetree/bindings/opp/opp-v2-base.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

Comments

Bjorn Andersson April 12, 2022, 3:23 p.m. UTC | #1 
On Mon 11 Apr 08:43 PDT 2022, Krzysztof Kozlowski wrote:

> Devices might need to control several clocks when scaling the frequency
> and voltage.  Allow passing array of clock frequencies, similarly to the
> voltages.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

> ---
>  Documentation/devicetree/bindings/opp/opp-v2-base.yaml | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
> index 76c8acd981b3..1d7216008f95 100644
> --- a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
> +++ b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
> @@ -50,6 +50,14 @@ patternProperties:
>            property to uniquely identify the OPP nodes exists. Devices like power
>            domains must have another (implementation dependent) property.
>  
> +          This can be also an array of frequencies for each clock provided to the
> +          device.  In such case value of 0 means the clock frequency should not
> +          be configured for given clock.
> +        minItems: 1
> +        maxItems: 16
> +        items:
> +          maxItems: 1
> +
>        opp-microvolt:
>          description: |
>            Voltage for the OPP
> -- 
> 2.32.0
>
Rob Herring April 19, 2022, 4:48 p.m. UTC | #2 
On Mon, 11 Apr 2022 17:43:43 +0200, Krzysztof Kozlowski wrote:
> Devices might need to control several clocks when scaling the frequency
> and voltage.  Allow passing array of clock frequencies, similarly to the
> voltages.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>  Documentation/devicetree/bindings/opp/opp-v2-base.yaml | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
index 76c8acd981b3..1d7216008f95 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
@@ -50,6 +50,14 @@  patternProperties:
           property to uniquely identify the OPP nodes exists. Devices like power
           domains must have another (implementation dependent) property.
 
+          This can be also an array of frequencies for each clock provided to the
+          device.  In such case value of 0 means the clock frequency should not
+          be configured for given clock.
+        minItems: 1
+        maxItems: 16
+        items:
+          maxItems: 1
+
       opp-microvolt:
         description: |
           Voltage for the OPP