linux-kernel - Re: [PATCH v8 42/42] ARM: dts: da850: Add clocks

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Message-ID: <5502d0ee-b5dc-e90a-a041-882350c7d339@lechnology.com>
Date:   Mon, 2 Apr 2018 11:15:09 -0500
From:   David Lechner <david@...hnology.com>
To:     Sekhar Nori <nsekhar@...com>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Kevin Hilman <khilman@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Adam Ford <aford173@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 42/42] ARM: dts: da850: Add clocks

On 04/02/2018 06:12 AM, Sekhar Nori wrote:
> On Friday 16 March 2018 10:50 PM, David Lechner wrote:
>> On 03/15/2018 09:52 PM, David Lechner wrote:
>>> This adds clock provider nodes for da850 and wires them up to all of the
>>> devices.
>>>
>>> Signed-off-by: David Lechner <david@...hnology.com>
>>> ---
>>
>> ...
>>
>> This is the mcasp0: mcasp@...000 node...
>>
>>> @@ -560,6 +720,7 @@
>>>                dmas = <&edma0 1 1>,
>>>                    <&edma0 0 1>;
>>>                dma-names = "tx", "rx";
>>> +            clocks = <&psc1 7>;
>>
>> After some testing, it looks like it needs to be:
>>
>> +            power-domains = <&psc1 7>;
>>
>> instead of
>>
>> +            clocks = <&psc1 7>;
> 
> We should probably have both clocks and power-domains properties for all
> PSC clocks. This way, the driver can change without a corresponding DT
> update dependency.
> 
> Thanks,
> Sekhar
> 

That's fine with me. I just didn't know how people felt about using properties
that are not documented.