linux-kernel - Re: [PATCH 3/3] dt-bindings: dsp: fsl: Add DSP core binding support

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Date:   Thu, 18 Jul 2019 18:40:22 +0000
From:   Leonard Crestez <leonard.crestez@....com>
To:     Daniel Baluta <daniel.baluta@...il.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Daniel Baluta <daniel.baluta@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "S.j. Wang" <shengjiu.wang@....com>,
        Paul Olaru <paul.olaru@....com>,
        Aisheng Dong <aisheng.dong@....com>,
        Anson Huang <anson.huang@....com>, Peng Fan <peng.fan@....com>,
        Frank Li <frank.li@....com>,
        Devicetree List <devicetree@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "sound-open-firmware@...a-project.org" 
        <sound-open-firmware@...a-project.org>
Subject: Re: [PATCH 3/3] dt-bindings: dsp: fsl: Add DSP core binding support

On 18.07.2019 21:24, Daniel Baluta wrote:
> On Thu, Jul 18, 2019 at 7:41 PM Rob Herring <robh+dt@...nel.org> wrote:
>>
>> On Thu, Jul 18, 2019 at 9:13 AM Daniel Baluta <daniel.baluta@....com> wrote:
>>>
>>> This describes the DSP device tree node.
>>>
>>> Signed-off-by: Daniel Baluta <daniel.baluta@....com>

>>> +  power-domains:
>>> +    description:
>>> +      List of phandle and PM domain specifier as documented in
>>> +      Documentation/devicetree/bindings/power/power_domain.txt
>>
>> How many? 4?
> 
> Yes, 4 for i.MX8QXP. Also, the same number is for i.MX8QM. Anyhow, I didn't
> added added a limit here because I really don't know how many will be
> in upcoming i.MX platforms.

Which 4? It might help to use power-domain-names explicitly just like 
it's done for clocks and mboxes.

This is very common for phandle lists.

--
Regards,
Leonard