linux-kernel - Re: [PATCH 1/6] dt-bindings: omap: Update PRM binding for genpd

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Message-ID: <20200528222020.GA783133@bogus>
Date:   Thu, 28 May 2020 16:20:20 -0600
From:   Rob Herring <robh@...nel.org>
To:     Tony Lindgren <tony@...mide.com>
Cc:     linux-omap@...r.kernel.org, "Andrew F . Davis" <afd@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Suman Anna <s-anna@...com>, Tero Kristo <t-kristo@...com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 1/6] dt-bindings: omap: Update PRM binding for genpd

On Wed, May 20, 2020 at 02:13:29PM -0700, 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.

multiple domains? Then why 0 cells?

> 
> Cc: devicetree@...r.kernel.org
> Cc: Rob Herring <robh@...nel.org>
> Signed-off-by: Tony Lindgren <tony@...mide.com>
> ---
>  Documentation/devicetree/bindings/arm/omap/prm-inst.txt | 2 ++
>  1 file changed, 2 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
> @@ -18,6 +18,7 @@ Required properties:
>  		(base address and length)
>  
>  Optional properties:
> +- #power-domain-cells:	Should be 0 if the PRM instance is a power domain.

...power domain provider.

>  - #reset-cells:	Should be 1 if the PRM instance in question supports resets.
>  
>  Example:
> @@ -25,5 +26,6 @@ Example:
>  prm_dsp2: prm@...0 {
>  	compatible = "ti,dra7-prm-inst", "ti,omap-prm-inst";
>  	reg = <0x1b00 0x40>;
> +	#power-domain-cells = <0>;
>  	#reset-cells = <1>;
>  };
> -- 
> 2.26.2