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SubjectRe: [PATCH 1/6] dt-bindings: omap: Update PRM binding for genpd
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On 12/05/2020 23:38, Tony Lindgren wrote:
> The PRM (Power and Reset Module) has registers to enable and disable
> power domains, so let's update the binding for that.
>
> Cc: devicetree@vger.kernel.org
> Cc: Rob Herring <robh@kernel.org>
> Signed-off-by: Tony Lindgren <tony@atomide.com>
> ---
> Documentation/devicetree/bindings/arm/omap/prm-inst.txt | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/arm/omap/prm-inst.txt b/Documentation/devicetree/bindings/arm/omap/prm-inst.txt
> --- a/Documentation/devicetree/bindings/arm/omap/prm-inst.txt
> +++ b/Documentation/devicetree/bindings/arm/omap/prm-inst.txt
> @@ -18,12 +18,16 @@ Required properties:
> (base address and length)
>
> Optional properties:
> +- #power-domain-cells: Should be 0 if the PRM instance is a power domain.
> - #reset-cells: Should be 1 if the PRM instance in question supports resets.
> +- clocks: Functional and interface clocks managed by the power domain
> +- clock-names: Names for the clocks using "fck" and "ick" naming

Whats the purpose of the clocks for PRM? It looks like you are using
this with ABE domain on omap4/omap5, but why is this needed?

-Tero

>
> Example:
>
> prm_dsp2: prm@1b00 {
> compatible = "ti,dra7-prm-inst", "ti,omap-prm-inst";
> reg = <0x1b00 0x40>;
> + #power-domain-cells = <0>;
> #reset-cells = <1>;
> };
>

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