linux-kernel - Re: [PATCH 06/17] dt-bindings: clock: renesas,rzg2l-cpg: Update #power-domain-cells = <1>

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Date: Mon, 19 Feb 2024 10:18:55 +0200
From: claudiu beznea <claudiu.beznea@...on.dev>
To: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: mturquette@...libre.com, sboyd@...nel.org, robh@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 magnus.damm@...il.com, paul.walmsley@...ive.com, palmer@...belt.com,
 aou@...s.berkeley.edu, linux-renesas-soc@...r.kernel.org,
 linux-clk@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
 Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
Subject: Re: [PATCH 06/17] dt-bindings: clock: renesas,rzg2l-cpg: Update
 #power-domain-cells = <1>



On 16.02.2024 16:04, Geert Uytterhoeven wrote:
> Hi Claudiu,
> 
> On Thu, Feb 8, 2024 at 1:43 PM Claudiu <claudiu.beznea@...on.dev> wrote:
>> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
>>
>> The driver will be modified (in the next commits) to be able to specify
>> individual power domain ID for each IP. Update the documentation to cope
>> with this.
>>
>> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> 
> Thanks for your patch!
> 
>> --- a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
>> +++ b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
>> @@ -57,7 +57,7 @@ properties:
>>        can be power-managed through Module Standby should refer to the CPG device
>>        node in their "power-domains" property, as documented by the generic PM
>>        Domain bindings in Documentation/devicetree/bindings/power/power-domain.yaml.
>> -    const: 0
>> +    const: 1
> 
> While the driver will soon support both 0 and 1, we may need to keep 0
> for RZ/V2M for now?  RZ/V2M does not have CPG_BUS_*_MSTOP registers,
> but uses the Internal Power Domain Controller (PMC).

ok

> 
> Please add a link to the power domain numbers in
> <dt-bindings/clock/r9a0*-cpg.h>,
> like is done for #clock-cells.

ok

> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds